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larimar-amber-art · 11 months

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BLUE AMBER AND LARIMAR DOMINICAN REPUBLIC

18.10.2023.20:26, Cathy Jonathan [email protected]

Dear LARIMAR & AMBER ART.

Larimar is the trade name for blue pectolite, which has been used as a gem material for several decades. GIA first reported on Larimar in 1986 in our journal Gems & Gemology, and we published an extensive article on this material in 1989. The following article citations will provide more information about Larimar.

“Gem news: pectolite,” by Emmanuel Fritsch, Gems & Gemology, 1986 Fall; v. 22, n. 3; p. 187-177. Abstract: Pectolite is known under the trade name "Larimar."

“Blue pectolite from the Dominican Republic,” by Robert E. Woodruff and Emmanuel Fritsch, Gems & Gemology, 1989 Winter; v. 25, n. 4; p. 216-225. Abstract: "Blue pectolite from the Dominican Republic, also known by the trade name Larimar, has recently entered the U.S. market. Large quantities of this attractive ornamental stone have been found in cavities and veins of altered basalt. Most of the gemological properties are consistent with those previously reported for pectolite; the cause of color in this material is believed to be related to the presence of small amounts of Cu2+. The color appears to be stable to light, but does react to irradiation and to the heat of a jeweler's torch. It is easily separated from similar-appearing materials."--p. 216

https://www.gia.edu/gems-gemology/winter-1989-blue-pectolite-woodruff

“Atlantis Trading & Larimar, a rare blue gemstone from the Caribbean,” Bangkok Gems & Jewellery, 2001 May; v. 14, n. 10; p. 60, 62. Abstract: Larimar has a hardness of 5 to 7 on the Mohs scale. The stone is more or less translucent and its color can range from azure blue with white marbling to milky greenish shade. Larimar has only been found in a mountain region in the Dominican Republic. The name Larimar was given to the stone by a Dominican man, who named the stone after his daughter LARIssa and the Spanish word for sea: MAR.

“Gem profile: Larimar,” by David Federman, Modern Jeweler, 2009 Jan; p. 17-18. Abstract: Larimar is a sky-blue pectolite found only in the Dominican Republic.

“Gemmological research on Larimar stone from Dominica,” by Yi-Hong Xie, Journal of Gems & Gemmology, 2010; v. 12, n. 2; p. 7-10. Abstract: "The gemstone which is called Larimar occurs in the Chinese jewelry market now. The gemmological characteristics, chemical compositions, X-ray powder diffraction and infrared spectrum of the Larimar sample are analysed in the paper in order to define its mineral group. The results show that the Larimar sample is mainly composed of pectolite. The ultraviolet-visible absorption spectrum of the sample suggests that the absorption characteristic of the sample is related to Cu. It is supposed that the blue colour of Larimar probably could be caused by the diffusion of Cu-bearing sulfide distributed in pectolite according to its absorption spectrum and gemmological characteristics and chemical compositions. The definition of the mineral group of Larimar could be of significance to its identification and naming."--p. 7 Chinese text with English abstract

“Gems that inspire: Larimar,” by Jeff Prine, Watch & Jewelry Review, 2010 Mar; v. 77, n. 3; p. 18-19. Abstract: Larimar is a blue pectolite found in the Dominican Republic. Characteristics are described.

“Imitation Larimar,” by Lore Kiefert and Peter Groenenboom, Gems & Gemology, 2013, vol. 49, no. 2.

https://www.gia.edu/gems-gemology/summer-2013-gemnews-imitation-larimar

“Larimar,” by Sharon Elaine Thompson, Lapidary Journal Jewelry Artist, 2015 Nov; v. 69, n. 6; p. 38-39. Abstract: Larimar is a blue colored pectolite.

“What to cut: Caribbean Larimar,” by Russ Kaniuth, Rock & Gem, 2017 Jan; v. 47, n. 1; p. 54. Abstract: "Larimar is a very beautiful and distinctive-looking stone found in the Caribbean. The stone itself is actually a pectolite (calcium-sodium silicate); however, its blue, blue-green, and white hues, as well as the fact that it stems from one location, make it a one-of-a-kind stone. The difference in pectolites that gives larimar its distinctive blue coloring comes from the copper replacing the calcium. Although the stone was originally found over 100 years ago, it wasn't until Miguel Fuentes rediscovered it in the mid-1970s that it was introduced into the jewelry world. The stone's name combines part of his daughter Larissa's name (Lari-) and the Spanish word for "sea'' (mar). Larimar has a notorious love/hate reputation with lapidary artists: love of its beauty and hate for the difficulties of working with this material. Though it's a relatively hard material, it tends to fracture, chip, flake and break on you at the most inopportune times!"--p. 54

“Caribbean gold: Larimar,” Jewellery World (Australia), 2017 Jun; Abstract: Larimar, a sodium calcium silicate mineral possibly colored by copper, is described.

I hope this information will be helpful. If I can be of further assistance, please let me know.

Sincerely,

Cathy

Cathleen A. Jonathan, G.G. Senior Research Librarian Richard T. Liddicoat Gemological Library and Information Center T +1 760 603 4074 F +1 760 603 4256 E [email protected]

Our company Larimar & Amber Art creates unique exclusive handmade products from natural high quality larimar stone and blue amber of the Dominican Republic.

We are always the most unique exclusive creativity and the highest quality of our work and all our materials.

Welcome to the bright world of the power of magic of natural gems

LARIMAR & AMBER ART.

琥珀（こはく）Ｃ40Ｈ64Ｏ4 　数千万年の気が遠くなるような時間を超えて来た松柏類などの樹脂の化石です。　英語でアンバーＡｍｂｅｒと呼びます。‬

‪古来より琥珀は、その輝きと美しい色合い故に太陽の石、人魚の涙と呼ばれて愛されてきました。‬

‪西欧では１０年目を琥珀婚とし、１１月の誕生石でもあります。‬

‪琥珀はオーガニック・ジュエリー（有機質の宝石）と呼ばれる様に植物性有機物質ですから、濃い塩水に浮きます。汗にも強く石鹸で洗っても大丈夫です。　更に天然の宝飾品としては最も軽いものの一つ言えますので、余り重さを感じさせないことも優れた特徴ではないかと思われます。　　夏は肌に涼しい優しさ、冬は暖かみを感じさせてくれるソフトな感触、そして軽くて豊かな量感と魅惑的な輝きは、一度身に付けたら手放せない魅力を秘めています。‬

‪琥珀の色彩とその表情は千差万別ですから一つとして同じものはこの世に存在しません。　なかでも、幻の琥珀として、以前より注目されているのが、海のような神秘的な輝きを放つドミニカの青色琥珀（ブルーアンバー）です。　ブルーアンバーは、つい十数年前発見された新しい琥珀です。‬

‪ブルーアンバーは黒い布などの上で太陽光線にかざすとそれまで茶色に見えていたものが、突然、胸が踊る様な素晴らしい青色の蛍光色を発し輝き始めます。　自然の太陽光線と同じ分光分布（スペクトラム）を持つ宝石鑑定用の人工太陽灯や街路の夜間照明用の水銀灯は勿論、青のスペクトルを多く放出するＬＥＤや蛍光灯の光でも少しは青く輝きます。　更に、紫外線のブラックライトを当てると、トルコ石に似た目の覚めるような明るい青緑色を呈します。　しかしながら、白熱電球では青の光を殆ど出しませんので、青く光らないで、普通の茶黄色に見える不思議な琥珀です。‬

‪ドミニカでは琥珀資源の保存のため機械掘りは禁止されており、人力に頼らねばなりません。　琥珀が眠っている地層までスコップとツルハシで横に坑道を掘ったり、ピットと言う深い縦穴を掘って採掘しています。　　現在、ブルーアンバーの産出量は一週間に僅か２〜３Ｋｇ、この中で良質のものは１Ｋｇ程度で、　最高級品のネイビーブルーアンバーは数百グラムのみと言われております。　　この様にブルーアンバーの産出は限定されているため大変に希少価値があります。‬

‪ブルーアンバーがなぜ青く輝くのか、その仕組みは未だ明らかではありません。　その中に銅等の不純物が包含されていて、そのイオンの色ではないか、また原子内の電子の状態に多少の不整が起こっているために特定の波長の光が吸収されて色が見えてくる等とも諸説がありますが定かではありません。　ブルーアンバーを研磨していますと、温泉の硫化水素の匂いがしますので、火山活動と何らかの関係があったものと思われます。‬

‪ミヤンマー（旧ビルマ）の青色琥珀（ブルーアンバー）や赤色琥珀（レッドアンバー）はバーマイトBurmiteと呼ばれ、黄、茶、赤、紫、青色と多彩です。時代は日本の久慈琥珀と同じ、約８０００万年から１億１０００万年前の白亜層から産出します。中でもブルーアンバーはやや赤色或いは紫色掛かった青色です。‬

‪インドネシアのスマトラ島の青色琥珀（ブルーアンバー）は２年位前に、石炭層の中ら発見されたもので、茶、赤、紫、青色等と多彩で、ブルーアンバーはドミニカ産のブルーアンバーより青いものがあります。 ‬

‪メキシコの赤琥珀（レッドアンバー）は黒に近い赤色から透明で淡い赤色まで色々あります。昔、イタリアのシシリー島で採れた赤琥珀（現在、枯渇し採れません。）に似ています。‬

‪虹色琥珀（レインボーアンバー）は数年前、メキシコの赤琥珀を研磨中に、偶然、発見した希少な真紅の琥珀です。‬

‪白熱電球や蛍光灯の下でも赤色をしていますが、太陽光線や道路端の水銀灯或いは今流行のＬＥＤの光で部分的に素晴しい緑色や青色の蛍光色を帯びて輝きます。‬

‪元々は紅い琥珀ですが、黒い布などの上で太陽光線に当てますと、ある時はブルー、またある時は、グリーン、イエローと、様々な彩りを持つことから、特に青や緑の輝きが際立って良いものを虹色琥珀（レインボーアンバー）と私が名付けました。赤琥珀１０個の内１個程しか出て来ませんので希少性が高く高価格になります。メキシコ琥珀も、ドミニカ琥珀と同様、全て天然のままの、いわゆる熱処理をしない自然な琥珀です。‬

‪ブルーアンバーもレインボー・アンバーも約２，５００万年前の、日本のケヤキに似た、琥珀の木（アルガロボ、Ａｌｇａｒｒｏｂｏ）の樹脂で、ドミニカではこの木の子孫ガ現在も生存しています。そのブルーアンバーやレインボー・アンバーを、都会的なセンスと、日本一の品揃えで、今回お届けいたします。‬

‪バルト海やドミニカの琥珀は、地質学的な研究の結果、今から２，０００万年から４，０００万年前の琥珀の木の樹脂から生まれたものです。　　因みに、日本の秋田・新潟地方の石油ガス田が、地質年代で言いますと、いわゆる新生代第三紀の地層に賦存しております事から、同じ様な年齢です。‬

‪その他、太古のロマンを秘めたたタイムカプセルと言われる花・葉っぱ・虫入り琥珀など、他では見られない種々の琥珀を取り揃えてお待ちしております。‬

‪様々な模様と色調の琥珀、時を超えた美しい輝きをお楽しみ下さい。‬

‪本物志向のあなたに、何時もお守りとしてお傍に、そして御家族の末代までの家宝として伝えて下さい。‬

‪（保存方法）‬

‪悠久のロマンとファンタジィを秘め、時を超えて神秘的に輝き続ける魅惑の琥珀も、本来は松脂の様な樹脂ですから簡単に燃えます。‬

‪琥珀は地下に何千万年も眠っていた位ですから酸やアルカリに対して大変丈夫で、汗や脂をとる為に石鹸水で洗っても大丈夫です。そして綺麗な柔らかい布やタオルでふいて下さい。但し、若い琥珀のコーパルはアルコールや除光液に溶け、白く曇ります。‬

‪琥珀の弱点は、人間の皮膚と同じで、乾燥に弱いことです。直射日光に何日も長時間晒しますと、表面に小さなひび割れが発生することがあります。　特にドミニカの虫入り琥珀は、何年も使用しないときは、水で湿らせて、ポリ袋に入れて置いた方が良いと思います。‬

‪また、琥珀の硬さは指の爪より少し硬い位ですので、砂などの硬いもので傷つきますから、気を付けて下さい。傷付いた琥珀は再研磨で元の様になりますので、ご安心下さい。　もし軽い傷が付いた場合には、＃１０００番程度のサンドペーパーで傷を取り、その後自動車のワックスで磨きますと簡単に直ります。‬

‪ペンダント・トップのバチカンなど、Ｋ１８或いはシルバーのパーツの磨きには通常、街中の宝飾品店などでも買えると思いますが、商品名：ポリマール（研磨用つや出し布）を使います。　但し、琥珀やメガネは磨かないで下さい、曇ってしまい、後でバフ（仕上げの研磨）を掛ける必要が出てきます。　金や銀メッキなどでは、メッキがはがれて仕舞いますので要注意です

Amber (Amber) C40H64O4 It is a fossilized resin of pine trees and other species that has survived over tens of millions of years. It is called Amber in English.

Since ancient times, amber has been loved as the stone of the sun and mermaid's tears because of its brightness and beautiful colors.

In Western Europe, the 10th year is considered amber marriage, and it is also the birthstone for November.

Amber is called organic jewelry because it is a plant-based organic material, so it floats in strong salt water. It is resistant to sweat and can be washed with soap. Furthermore, it is one of the lightest natural jewelry, so it is considered to be an excellent feature that it does not feel too heavy. It has a cool and gentle feel on your skin in the summer, a soft touch that warms your skin in the winter, and a light, rich volume and enchanting shine that you won't want to let go of once you wear it.

Amber has a wide variety of colors and expressions, so no two pieces are the same in this world. Among these, his Dominican blue amber, which has a mysterious sea-like shine, has been attracting attention as a phantom amber. Blue amber is a new type of amber that was discovered just over ten years ago.

When Blue Amber is placed on a black cloth and held up to sunlight, what previously appeared to be brown will suddenly begin to glow with a stunning blue fluorescent color that will make your heart dance. Not only artificial solar lamps for jewelry appraisal, which have the same spectral distribution (spectrum) as natural sunlight, and mercury lamps for street lighting at night, but also LED and fluorescent lamps, which emit a large amount of the blue spectrum, will give a slight blue glow. . Furthermore, when exposed to ultraviolet black light, it takes on a striking bright blue-green color similar to turquoise. However, incandescent light bulbs emit almost no blue light, so it is a mysterious amber that does not glow blue and looks like a normal brown-yellow color.

Mechanical digging is prohibited in Dominica in order to preserve amber resources, and mining must be done manually. Mining is done by digging horizontal tunnels with shovels and pickaxes, or by digging deep vertical holes called pits, to reach the strata where amber lies. Currently, the production amount of blue amber is only 2 to 3 kg per week, of which only about 1 kg is of good quality, and the highest quality navy blue amber is said to be only a few hundred grams. In this way, the production of blue amber is limited, making it extremely rare and valuable.

The mechanism behind why blue amber shines blue is still unclear. It may contain impurities such as copper, and the color may be due to the ion's color, or there may be some irregularity in the state of the electrons within the atom, which absorbs light of a specific wavelength and causes the color to appear. There are various theories that it will come, but it is not certain. When I was polishing blue umber, I could smell the hydrogen sulfide from the hot springs, so I think it had something to do with volcanic activity.

Blue amber and red amber from Myanmar (formerly Burma) are called Burmite and come in a variety of colors: yellow, brown, red, purple, and blue. It is produced from the chalk layer that dates from about 80 to 110 million years ago, the same age as Kuji amber in Japan. Among them, Blue Amber is a blue color with a slight red or purple tint.

Blue amber from Sumatra, Indonesia was discovered in a coal seam about two years ago, and comes in a variety of colors, including brown, red, purple, and blue. Blue amber is the same as blue amber from Dominica. There is something bluer.

Mexican red amber comes in a variety of colors, from almost black red to transparent and pale red. It resembles the red amber that was once mined on the Italian island of Sicily (currently, it is depleted and cannot be mined).

Rainbow Amber is a rare crimson amber that I accidentally discovered several years ago while polishing red amber from Mexico.

It remains red under incandescent bulbs and fluorescent lights, but when exposed to sunlight, roadside mercury lamps, or the current trendy LED light, parts of it glow with a wonderful green or blue fluorescent color.

Originally, it is a red amber, but when exposed to sunlight on a black cloth, it sometimes takes on a variety of colors, sometimes blue, other times green, and sometimes yellow. I named the one with outstanding color rainbow amber. Only about 1 out of 10 pieces of red amber comes out, making it highly rare and expensive. Mexican amber, like Dominican amber, is completely natural amber that is not heat-treated.

Both Blue Amber and Rainbow Amber are resins from the amber tree (Algarrobo), which is similar to the Japanese zelkova tree, and which dates back approximately 25 million years, and descendants of this tree still survive in Dominica. We now offer Blue Amber and Rainbow Amber with an urban flair and the largest selection in Japan.

As a result of geological research, amber from the Baltic Sea and Dominica was created from the resin of amber trees 20 to 40 million years ago. Incidentally, the oil and gas fields in the Akita and Niigata regions of Japan are of similar age, as they are located in the so-called Tertiary Cenozoic strata in geological terms.

We also carry a variety of amber that cannot be found anywhere else, including amber with flowers, leaves, and insects, which are said to be time capsules of ancient romance.

Enjoy the timeless beauty of amber with its various patterns and tones.

For those of you who like the real thing, please keep it close to you at all times as a talisman, and pass it down as an heirloom to your family for generations to come.

Preservation method

The enchanting amber, which has an eternal romance and fantasy and continues to shine mysteriously over time, is originally a resin like pine resin, so it burns easily.

Amber has been underground for tens of millions of years, so it is extremely resistant to acids and alkalis, and can even be washed with soapy water to remove sweat and oil. Then wipe it with a clean soft cloth or towel. However, young amber copal dissolves in alcohol or nail polish remover and turns white and cloudy.

Amber's weakness is that it is susceptible to dryness, just like human skin. If exposed to direct sunlight for many days, small cracks may appear on the surface. Especially for Dominican amber with insects, if you are not going to use it for many years, I think it is better to moisten it with water and store it in a plastic bag.

Also, the hardness of amber is slightly harder than a fingernail, so please be careful as it can be scratched by hard objects such as sand. Rest assured that scratched amber can be re-polished to its original state. If there is a slight scratch, remove it with #1000 sandpaper and then polish with car wax to easily repair it.

To polish K18 or silver parts such as the Vatican pendant top, I usually use Polymer (polishing cloth), which can be purchased at jewelry stores around town. However, please do not polish amber or glasses, as they will become cloudy and will require buffing (finish polishing) later. Please be careful when using gold or silver plating as the plating will peel off.

Welcome to the bright world of the power of magic of natural gems

LARIMAR & AMBER ART.

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