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In 1986, California named benitoite as its state gemstone, a form of the mineral barium titanium silicate that is unique to the Golden State and only found in gem quality in San Benito County. [ 80 ] ^ Colorado is the only state whose geological symbols reflect the national flag's colors: red (rhodochrosite), white (yule marble), and blue ...
Actinolite. Nephrite (var.); Adamite; Aegirine; Afghanite; Agrellite; Algodonite; Alunite; Amblygonite; Analcime; Anatase; Andalusite. Chiastolite; Andesine ...
Ex gratia (/ ˌ ɛ k s ˈ ɡ r eɪ ʃ (i) ə /; [1] also spelled ex-gratia) is Latin for "by favor", and is most often used in a legal context. When something has been done ex gratia, it has been done voluntarily, out of kindness or grace. In law, an ex gratia payment is a payment made without the giver recognising any liability or legal ...
The specific gem ingredients are added and dissolved in this fluid and recrystallize to form the desired gemstone.This is a longer process compared to the flame fusion process and can take two months up to a year depending on the desired final size.
GIA also exists to educate the gem and jewelry industry and the general public through its publications and outreach efforts. Most notable of these efforts is the quarterly publication of the magazine Gems & Gemology, a respected journal in the field. The journal includes full-length feature articles, as well as reports on GIA research ...
The ammolite gems are triplets, as evidenced by their convex profiles. Ammolite is best used in pendants, earrings, and brooches due to its fragility. Compared to most other gems, ammolite has a rather scant history of use; it did not begin to garner interest in Western society until the 1970s after entering the market (to a limited degree) in ...