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As the transparent variety iolite, it is often used as a gemstone. The name "iolite" comes from the Greek word for violet. 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 .
Celestial Globe by Thattvi c.1663 [1] Muhammad Saleh Thattvi (also spelled Muhammad Salih Tatah-wi and Muhammad Salih Tatawi ) was a 17th-century Mughal craftsman known for making seamless celestial globes and astrolabes .
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]
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 ...
The Oxford English Dictionary suggests an alteration of Anglo–Norman pedoretés (classical Latin pæderot-), a kind of opal, rather than the Arabic word faridat, meaning "gemstone". The Middle English Dictionary ' s entry on peridot includes several variations: peridod, peritot, pelidod and pilidod — other variants substitute y for letter i ...
Actinolite. Nephrite (var.); Adamite; Aegirine; Afghanite; Agrellite; Algodonite; Alunite; Amblygonite; Analcime; Anatase; Andalusite. Chiastolite; Andesine ...
Urania (/ j ʊəˈr eɪ n i ə / yoor-AY-nee-ə; Ancient Greek: Οὐρανία, romanized: Ouranía; modern Greek shortened name Ράνια Ránia; meaning "heavenly" or "of heaven") was, in Greek mythology, the muse of astronomy and astrology. Urania is the goddess of astronomy and stars, her attributes being the globe and compass.
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.