#concretions

[nelc]

The Kaihinaki or Moeraki Boulders, spherical boulders of concretized calcite, mud, silt, and clay, in New Zealand

[oldearthminerals]

Glacial Concretion Fairy Stones from the Harricana River Valley, Quebec, Canada

[meganwhalenturner]

I thought the chunky piece used to be part of someone's floor. Turns out it is a naturally occurring concretion.

The big piece is chert. I like it. It's my own little greek island and I'm taking it home with me. But if I *wanted* arrowheads, it would make lovely arrowheads, I'm sure.

[briery]

Rhombohedra lining cavity in a septarian nodule, on display at London’s Natural History Museum. By Stone Mania on Flickr. (Hi-Res)

[faccaldo]

concrezioni

[blnxpc]

Arrow Poem

[draconym]

NYC subway as a flooded cave system and all the rats evolving in isolation like devil's hole pupfish

[zillychu]

no one was allowed to get custom t shirts after that

[neutral-towards-mindmaps]

can't stop thinking about tamsyn muir's choice to present her deep, morally and politically complex science fantasy world with a central web of magic, secrets and lies reaching back ten thousand years through the eyes of three characters who:

1. tune out and start thinking about hot women whenever the magic system or worldbuilding are being explained

2. experience hallucinations on a daily basis, have brain damage and are being deceived and misled by their peers, authority figures, themselves and God

3. don't know who they are, have spent their entire life in one place and are, on all levels but physical, six months old

[godbirdart]

MAY I ASK WHAT A BRUTALIST BUTT PLUG WOULD LOOK LIKE.

this

[zegalba]

Budapest's Gellért Hill's Huge Water Reservoir. One of the most spectacular and popular facilities of the Budapest Waterworks, the vast space contains 106 columns.

[cordspaghetti]

She doesn’t look anything like her pictures…

[tenth-sentence]

We see here at the bottom of the cliffs, beds containing sharks' teeth and sea-shells of extinct species, passing above into an indurated marl, and from that into the red clayey earth of the Pampas, with its calcareous concretions and the bones of terrestrial quadrupeds.

"Journal of Researches into the Natural History and Geology of the Countries Visited During the Voyage of H.M.S. Beagle Round the World, 1832-36" - Charles Darwin

[hellenhighwater]

Why does Malice look like a mob boss waiting to get out of prison so she can take revenge on everyone who wronged her?

[briery]

Septarian Nodule A septarian nodule, formed during the Cretaceous Period, is composed of the mineral calcite (yellow centre), aragonite (the brown lines) and limestone (the matrix). (Hi-Res)

[iindex]