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The name "iolite" comes from the Greek word for violet. Another old name is dichroite , a Greek word meaning "two-colored rock", a reference to cordierite's strong pleochroism . It has also been called "water-sapphire" and "Vikings' Compass" because of its usefulness in determining the direction of the sun on overcast days, the Vikings having ...
Painite is a very rare borate mineral.It was first found in Myanmar by British mineralogist and gem dealer Arthur C.D. Pain who misidentified it as ruby, until it was discovered as a new gemstone in the 1950s.
The word ruby comes from ruber, Latin for red. The colour of a ruby is due to the presence of chromium. Some gemstones that are popularly or historically called rubies, such as the Black Prince's Ruby in the British Imperial State Crown, are actually spinels. These were once known as "Balas rubies".
Gemstone Meanings: What They Really Stand For Catherine Delahaye - Getty Images Jewels, birthstones, gemstones—so many names for the glitzy, glamorous stones so many of us love to wear each and ...
Actinolite. Nephrite (var.); Adamite; Aegirine; Afghanite; Agrellite; Algodonite; Alunite; Amblygonite; Analcime; Anatase; Andalusite. Chiastolite; Andesine ...
the magical or astrological lapidary that sets the relationship between the Signs of the Zodiac and a particular gemstone, and; the Christian lapidary, which describes the symbolism of gems mentioned in the bible, although contemporary readers would have regarded both the first two categories as representing scientific treatments. [4]
Gemology or gemmology is the science dealing with natural and artificial gemstone materials. It is a specific interdisciplinary branch of mineralogy . Some jewelers (and many non-jewelers) are academically trained gemologists and are qualified to identify and evaluate gems.
Lapis lazuli (UK: / ˌ l æ p ɪ s ˈ l æ z (j) ʊ l i, ˈ l æ ʒ ʊ-,-ˌ l i /; US: / ˈ l æ z (j) ə l i, ˈ l æ ʒ ə-,-ˌ l i /), or lapis for short, is a deep-blue metamorphic rock used as a semi-precious stone that has been prized since antiquity for its intense color.