#Widmanstätten

[gottalottarocks]

Hi I saw your reply on a post about weird things people believe in (in terms of science) and you wrote about that unless one stands on a volcano, its solid rock down to the outer core and I had to google it because I was always taught that THE MANTLE IS LIQUID not by movies but by SCHOOL and now I learn it's a case of 'technically-' and I'm shaking so, uh, thanks.

Hello! Sorry I sat on this, I wanted to respond with this earth structure diagram I've been working on. I think most public schools in the US do a terrible job of teaching geology and it actually drives me insane lol. Also, if learning the mantle is not liquid blew your mind, then this is gonna blow your mind too...

The mantle is green!

This is a pretty quick and dirty diagram, but I wanted to show the earth in a way that we don't usually think about (usually it just looks "hotter" as you go toward the center). Here are some earth facts I wish everyone knew:

The Crust - relatively super thin, very brittle, mostly granite, and things get weird where the crust transitions to mantle and where plates collide (might make a second post on that).

The Mantle - primarily made up of a rock called peridotite, which has lots of olivine in it and is blasphemously green. Also the mantle is pretty much all rock, maybe a little magma here and there, but it's pretty minor. But because all that rock is really, really hot it can deform plastically and it actually undergoes convection (it moves!) Mantle upwelling (shown in that lighter green) is actually a huge driver of plate tectonics.

The Core - made of an iron and nickel alloy, the outer core is liquid (because it's so hot) and the inner core is solid (because the pressure is so high). This dual metallic core generates Earth's magnet field (our planet is one big magnet). We also suspect that inner core has Widmanstätten patterns, similar to those we find in meteorites.

So yeah, hoped you liked some more earth facts 😅

[materialsscienceandengineering]

Alloys: Meteoric iron

A native metal (i.e., metals found in their pure metallic states), meteoric iron is a combination of iron and nickel found in meteorites. It could be argued that this material is a combination of minerals, however both definitions fit, as the minerals involved are themselves combinations of iron and nickel, so the alloy classification stands as well. The two main minerals - or alloys - in meteoric iron are kamacite and taenite.

Kamacite is found on Earth only in meteorites and is around 90-95% iron. Taenite has a wider variety of compositions, and can be from 20-65% nickel. When kamacite and taenite are found together, they can form a plessite texture. Other elements present in these natural alloys include cobalt, sulfur, phosphorus, and carbon, in limited amounts.

Many meteoric iron samples have Widmanstätten microstructures, long lamellae of interwoven kamacite and taenite, as pictured in images 1 and 5 above. Many other metals and alloy systems form Widmanstätten structures as well, so the definition is not limited to kamacite and taenite. However, while these structures are not limited to meteorites, iron doesn’t form Widmanstätten structures on Earth, at least not to the same scale, given that it only forms in meteorites after millions of years of cooling, so any iron with this structure must be meteoric iron.

The microstructure seen in image 4 is plessite, as mentioned above, while the meteorite in image 3 is a single crystal, with no microstructure to speak of. Historically, meteoric iron has been used across the globe for a variety of applications, as it was a ready source of iron on the surface that typically didn’t require mining.

Sources/Further reading: ( 1 - image 1 ) ( 2 - image 2 ) ( 3 - image 3 ) ( 4 - image 4 ) ( 5 - image 5 ) ( 6 ) ( 7 )

[pwlanier]

A Gibeon Meteorite sphere,

held in place by a magnet and displayed on a malachite cube,

Great Namaland, Namibia.

Footnotes

This interesting sphere has been made from a Gibeon meteorite. It displays the "Widmanstätten Patterns" a unique geometric, crystalline structure caused by the ultra slow cooling process during its journey through space. The sphere is held by a strong magnet and displayed on a malachite cube.

Bonhams

[nerdasaurus1200]

Brotherhood body headcanon inspired by @th3p0rtalmaker's headcanon about Hector- Adira has almost no scars except for a small scar in her hairline from when Edmund tried to touch the moonstone. And Edmund has Widmanstätten lines on the stump of his arm

[coveredinmetaldust]

Apollo (Brooch)

I have been meaning to post more of my artwork here, so here's one:

July, 2020 Gibeon meteorite, sterling silver, stainless steel wire 54mm x 48mm x 5mm (HxWxD | Measured at the thickest point.)

Iron meteorites are hunks of metal which amble through space for billions of years. Sometimes, against all odds, these extraterrestrial objects will find their way to our small planet, where they will sit for millions of years until one of our own discovers them through chance.

If you cut one of these meteorites in half you will reveal an intricate lattice-work structure of two different nickel-like alloys. They call these “Widmanstätten Patterns”, and they are unique to every meteorite. (Meteorites are sort of like deadly cosmic snowflakes if you think about it.) These patterns are the product of phenomenal cosmic forces acting upon the metal as it aimlessly drifts through space for a truly unimaginable amount of time.

This brooch features a fraction of one such meteorite in the center of it that I cut, shaped, polished, and then etched to reveal its unique pattern. The formal aspect of this brooch was heavily inspired by the Voyager 2 space probe, as well as fictional interstellar objects depicted in retro-futuristic illustrations from the 1970s and 80s. The silhouette was designed to direct attention to the extraterrestrial centerpiece and signify space exploration through iconic design elements.

In the end, everything is made of stardust; some of it is just a long way from home.

[mycupofstars]

🙃🐰🐸

Thank you! 💙💙💙

🙃 What’s a weird fact that you know?

Widmanstätten patterns are these really cool geometric patterns that can be seen in cross sections of certain types of meteorite, that come from the different alloys melting and cooling and crystallizing up against each another over millions and millions of years

🐰 What do you think says the most about a person?

How they act about someone who’s not in the room or has left the room

🐸 Describe your aesthetic.

Butch-ish bi disaster energy with a nerdy goth twist like in presentation, mentally my entire tag green

[thejewelrysourcess]

Discover Timeless Elegance with Meteorite Rings from The Jewelry Source

Introduction: Are you searching for a unique piece of jewelry that not only captivates the eye but also tells a story of cosmic wonder? Look no further than meteorite rings from The Jewelry Source. Crafted from genuine meteorite, these rings are perfect for those who appreciate the extraordinary. Whether you're in the market for meteorite wedding bands or simply a stunning meteorite fashion ring, The Jewelry Source has an unparalleled selection that merges elegance with the mystique of the cosmos.

Why Choose Meteorite Rings?

A Unique and Rare Beauty

Each meteorite ring from The Jewelry Source is crafted from authentic Gibeon meteorite. These meteorites are known for their distinctive Widmanstätten patterns—interlaced designs that are naturally formed as the meteorite cools over millions of years in outer space. This intricate pattern makes each ring truly one-of-a-kind.

Widmanstätten Patterns: These naturally occurring patterns ensure that no two meteorite rings are identical, offering a unique piece of jewelry that is unmatched in beauty.

Cosmic Origin: Owning a meteorite ring means wearing a piece of the universe, adding a layer of intrigue and significance to your jewelry collection.

Perfect for Wedding Bands

Meteorite Wedding Bands: A Symbol of Eternal Love

When you choose a meteorite wedding band, you're not just selecting a ring—you're choosing a symbol of timeless love. The durability and rarity of the meteorite mirror the strength and uniqueness of your relationship.

Durability: Meteorite is known for its strength, making it an ideal material for wedding bands

Symbolism: The eternal nature of the universe, represented by the meteorite, makes it a perfect symbol for the enduring bond of marriage.

Customization Options

Make It Your Own

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Engravings: Personalize your meteorite wedding band with a special date or meaningful phrase.

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Why The Jewelry Source?

The Jewelry Source is committed to providing you with the highest quality meteorite rings. Each ring is meticulously crafted and comes with a certificate of authenticity, ensuring you receive a genuine piece of the cosmos.

Wide Selection: Explore our extensive collection of meteorite rings and find the perfect piece that resonates with you.

Exceptional Craftsmanship: Our skilled artisans ensure that each ring is crafted to perfection, reflecting the unique beauty of the meteorite.

Conclusion: Elevate your jewelry collection with a meteorite ring from The Jewelry Source. Whether you're looking for a meteorite wedding band or a unique fashion ring, our collection offers something for everyone. Shop now and discover the timeless elegance and cosmic beauty that only meteorite rings can provide.

[gmbdm]

Why a Men's Meteorite Wedding Band is the Perfect Choice for the Modern Groom

When it comes to choosing a wedding band, most guys want something that feels unique, personal, and stylish. Enter the men's meteorite wedding band—a ring that’s literally out of this world. Whether you’re a fan of space and science or just want something truly different, a meteorite wedding band could be exactly what you’re looking for. Let's dive into why this extraordinary ring might just be the perfect fit for your big day.

What Exactly is a Meteorite Wedding Band?

Before we get too deep, let's clear up what a meteorite wedding band actually is. These bands are made from pieces of actual meteorites—rocks that have traveled millions of miles through space before crash-landing on Earth. The metal from these meteorites is often combined with more traditional materials like gold, titanium, or tungsten to create a durable and stunning wedding band.

The Unique Appeal of Meteorite Bands

A Piece of the Universe

One of the coolest aspects of a men's meteorite wedding band is that you’re wearing something that’s billions of years old. The meteorites used in these rings are remnants of the early solar system, making them ancient and incredibly rare. This gives the ring a story—one that stretches back to the formation of our solar system. How’s that for a conversation starter?

Distinctive Patterns

Meteorite wedding bands stand out because of their unique patterns. The most common meteorite used is the Gibeon meteorite, known for its striking Widmanstätten pattern—interweaving lines that create a natural, metallic design. No two meteorite bands are exactly alike, so you’re guaranteed a ring that’s one-of-a-kind.

Durability and Strength

Weddings symbolize a lifelong commitment, so it’s fitting that your ring should be just as enduring. Meteorite wedding bands are tough. The iron-nickel composition of meteorites is extremely durable, meaning your ring can withstand daily wear and tear while maintaining its unique appearance. Plus, when paired with a sturdy metal like titanium or tungsten, your ring becomes even more resilient.

Why Choose a Men's Meteorite Wedding Band?

For the Adventurous Spirit

If you’re the type of guy who loves adventure, and exploration, or just appreciates the wonders of the universe, a men's meteorite wedding band is a perfect match. It reflects a sense of curiosity and a love for the unknown—a symbol that’s much more than just a piece of jewelry.

A Modern and Stylish Choice

Meteorite wedding bands are also a great option for grooms who want something modern and stylish. The sleek, metallic finish of these rings pairs well with both casual and formal attire. Whether you’re wearing it with a suit at work or with jeans on the weekend, a meteorite wedding band looks effortlessly cool.

A Connection to Nature

For those who feel a deep connection to the natural world, wearing a piece of meteorite can be a meaningful experience. This ring is a reminder of the vastness of the universe and the beauty of the natural forces that shape our world. It’s a way to carry a small piece of that wonder with you every day.

Caring for Your Meteorite Wedding Band

Protecting the Pattern

One thing to keep in mind with meteorite wedding bands is that they require a bit of care to maintain their unique pattern. The iron content in the meteorite can be prone to rust if exposed to moisture. To prevent this, many meteorite bands are treated with a protective coating. However, it’s still a good idea to keep your ring dry and clean it regularly to keep it looking its best.

Polishing and Maintenance

Just like any other piece of fine jewelry, your men's meteorite wedding band might need occasional polishing to maintain its shine. If you notice the pattern becoming less distinct over time, a professional jeweler can help restore it. With proper care, your meteorite wedding band can stay as striking as the day you first put it on.

Conclusion: A Wedding Band That Tells a Story

In a world where many wedding bands look the same, a men's meteorite wedding band offers something truly unique. It’s more than just a ring—it’s a piece of the cosmos, a symbol of adventure, and a reminder of the vastness of the universe. Whether you’re drawn to its durability, its distinctive look, or its cosmic origins, a meteorite wedding band is a choice that’s bound to stand out. If you’re looking for a wedding band that tells a story as unique as your own, look no further than the meteorite wedding band.

[crispyhottubchopshop]

Celestial Elegance: Exploring the Allure of Meteorite Rings for Men

In the realm of unique and extraordinary jewelry, meteorite rings for men have emerged as a captivating choice, seamlessly blending celestial allure with timeless elegance. These exceptional rings are crafted from fragments of actual meteorites, creating a connection to the cosmos that goes beyond traditional accessories. Join us on a cosmic journey as we delve into the fascinating world of meteorite rings, exploring their origin, design, and the undeniable charm they bring to men's fashion.

The Cosmic Origin:

Meteorite rings are not merely accessories; they are fragments of the universe itself. These rings are crafted from meteorites that have traversed space for millions of years before landing on Earth. Each ring tells a story of cosmic journeys, capturing the essence of the universe within its intricate patterns. The Gibeon meteorite, originating from Namibia, is a popular choice for its distinct Widmanstätten patterns, creating a unique and mesmerizing look.

Craftsmanship and Design:

The allure of men's meteorite wedding band extends beyond their celestial origin to the meticulous craftsmanship that goes into their creation. Skilled artisans carefully cut and shape these meteorite fragments, preserving their natural patterns and textures. The result is a stunning piece of jewelry that showcases the raw beauty of the meteorite, often complemented by other materials such as titanium or precious metals.

The Cosmic Connection in Men's Fashion:

Meteorite rings have become a symbol of the modern man's connection to the cosmos. Beyond their aesthetic appeal, these rings carry a unique energy, a reminder of the vastness of the universe and the wearer's place within it. Whether worn as a wedding band or a statement piece, meteorite rings add a touch of cosmic mystique to any ensemble, making them a popular choice for those seeking a distinctive and meaningful accessory.

Caring for Your Celestial Companion:

As with any precious piece of jewelry, meteorite rings for men require special care to maintain their celestial allure. Due to the meteorite's composition, these rings are susceptible to rust over time. To preserve their beauty, it is essential to keep them away from harsh chemicals and moisture. Regular cleaning with a soft, dry cloth ensures that the meteorite's unique patterns continue to captivate for years to come.

Making a Statement: Meteorite Rings in Special Occasions:

The versatility of meteorite wedding band extends to special occasions, where they make a bold and unforgettable statement. Whether exchanged as unique wedding bands or worn to elevate a formal event, these rings are a testament to the wearer's appreciation for the extraordinary. Their one-of-a-kind patterns and celestial origin make them conversation starters, sparking curiosity and admiration.

Conclusion:

In the realm of men's jewelry, meteorite rings stand as celestial ambassadors, bridging the gap between Earth and the cosmos. From their awe-inspiring origin to their meticulous craftsmanship, these rings offer more than just a fashion statement; they embody a connection to something greater. As you explore the world of meteorite rings, you embark on a journey through time and space, wearing a piece of the universe on your finger – a cosmic companion for life.

[earthstory]

Widmanstätten Pattern The Widmanstätten Pattern is found in some iron-nickel meteorites when a section of the meteorite is cut and etched with acid. The pattern is made up of two interwoven minerals that grew while the rock was in space: kamacite and taenite. Both minerals are made of iron and nickel, just slightly different amounts of each such that they have different structures. Formation of the Widmanstätten Pattern requires very, very slow cooling, which could take place for example in the core of a forming planet or asteroid that melted. If you could crack open one of the large planets in our solar system today - say Earth - you might find enormous versions of these minerals grown as part of our inner core. The pattern is named for the scientist who discovered it, Count Alois Von Beckh Widmanstätten. -EMT Reference: https://bit.ly/2CeEWz2 Image Credit: https://commons.wikimedia.org/wiki/File:Alvord_meteorite.jpg

[materialsscienceandengineering]

Ti, Al 6, V 4 (wt%), Widmanstätten microstructure

Technique Reflected light microscopy Length bar 400 μm / 80 µm Further information This sample is a mixed α+β Ti alloy with a Widmanstätten microstructure. The α phase (h.c.p) precipitates out as Widmanstätten plates upon cooling from the β phase (b.c.c). The matrix (dark) appears as thin layers between the a plates (light). The crystallographic relationships are very precise in this example giving h.c.p α plates in a b.c.c β matrix. [...] Organisation Department of Materials Science and Metallurgy, University of Cambridge

Sources: ( 1 ) ( 2 )

[mostly-history]

An iron bead (3600 – 3350 BC), found at the Gerzeh cemetery, about 70km south of Cairo (Egypt).

Analysis of the bead shows that it (and others found with it) was made from a meteorite, due to its high nickel content.  The bead has a Widmanstätten crystal structure, which is found only in meteorites that cooled extremely slowly inside asteroids while our solar system was forming.

[suppermariobroth]

Top: the cubic Moon Rocks found in Super Mario Odyssey, as well as other moon-related objects such as the walls of the interior of the Moon Kingdom or the Odyssey after it is repaired using Power Moons, show a very characteristic texture consisting of overlapping lines pointing in three directions at 60 degree angles to each other.

Bottom: this is called a Widmanstätten pattern and is observed in nature on the surface of meteorites. The developers chose this pattern as it is both connected to space and is visually memorable and striking.

Main Blog | Twitter | Patreon | Small Findings | Source

[pwlanier]

A MONOLITHIC SLICE OF THE FUKANG METEORITE

Pallasite - PAL

Fukang, Xinjiang Province – (44°26' N, 87°38' E)

The crescent slice, colossal in size for meteorites of this type, features a mosaic of sparkling peridot and olivine crystals in a gleaming iron-nickel matrix. A signature characteristic of Fukang is the impressive size of the crystals, and this particular specimen contains crystals as large as 2 inches. This is an impressive select sample of the most beautiful extraterrestrial material known. Modern cutting, polished on reverse to reveal fine glittering Widmanstätten pattern and the front polished to a mirror finish.

Christie’s

[blueiscoool]

Tutankhamun’s Meteorite Dagger Probably Wasn’t Forged In Egypt

An iron meteorite dagger gifted to the ancient Egyptian King Tutankhamun has undergone chemical analyses in a new study to unravel the mystery of how it was forged. Results show that its construction included techniques that weren’t common in Egypt at the time, potentially supporting the interpretation of a letter that indicates the weapon was gifted to King Tut’s grandfather from abroad.

Scientists traveled to the Egyptian Archeological Museum in Cairo, Egypt, in 2020 to carry out their investigations, the results of which are published in the journal Meteoritics & Planetary Science. They fired x-rays at the ancient blade to get a better idea of the concentrations of different elements it contained and how it was made.

While this revealed a mixture of iron sulfide (among other elements), it was the distribution of its constituents that proved to be most fascinating. The meteorite blade had a cross-hatched texture known as the Widmanstätten Pattern, something that – alongside iron sulfide – is seen in the iron meteorite octahedrite.

That this pattern was preserved in the forging of the knife, alongside preserved deposits of troilite, indicates it was made using a low-temperature technique heated to less than 950 degrees Celsius (1,742 degrees Fahrenheit).

Moreover, the study results point to an unclear origin for King Tut’s space blade, which was laid to rest alongside him and later discovered within his tomb’s spoils. Its gold hilt appears to have been crafted using lime plaster, an adhesive material that wasn’t used in Egypt until much later but was being used elsewhere.

The researchers say this “hints at its foreign origin, possibly from Mitanni, Anatolia, as suggested by one of the Amarna letters saying that an iron dagger with gold hilt was gifted from the king of Mitanni to Amenhotep III, the grandfather of Tutankhamen.”

The Amarna letters were discovered along the Nile River committed to clay tablets, one of which tells of an iron dagger gifted to Amenhotep III after he married the King of Mitanni’s daughter. It’s feasible then that King Tut inherited the dagger as it was passed down through the family, having originally been forged outside of Egypt.

The exceptional meteorite dagger’s out-of-this-world origins were first confirmed in another study published in the journal Meteoritics & Planetary Science back in 2016 which used x-rays to establish that it was built using material from one of the oldest objects in the Solar System: an iron meteorite.

The remarkable artifact is therefore a fine example of the significance of ornaments forged from meteoric iron by the Ancient Egyptians, who were using it long before the dawn of the Iron Age.

Filmmakers: If Brendan Fraser should return to The Mummy franchise, we’d like to see him wielding a space knife, please.

[lindahall]

Aloys von Widmanstätten – Scientist of the Day

Aloys von Widmanstätten, an Austrian printer and museum curator, was born July 13, 1753.

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