What is Tafi Stone?
What is Tafi Stone? Is Tafi Stone worth collecting? Let's take a look at it below.
Tafite's English name, Taaffeite, comes from a man named Taaffe: In 1945, the jeweler of the Dublin, Ireland, Earl Edward Taaffe, found a weak double shadow in a 1.41ct light purple gemstone bought as a spinel. After being sent to a gemstone laboratory in London, it was identified as a new gemstone variety in 1951. It is said that the world's largest Tafi stone is only 10 carats. In addition to Sri Lanka, gem-quality crystals are also produced in Tanzania and Madagascar. In 1956, fragrant stones were discovered in Xianghualing, Hunan, China, and Tafi Stone was symbiotic with them. But it is not up to the gem level.
Tafi Stone, also known as bismuth magnesium spar, chemical composition: MgBeAl4O8, hexagonal crystal system, common hexagonal double-cone or hexagonal barrel, a granular aggregate; color is colorless, green, blue, purple, purple, pink, Red, dark brown, etc.; refractive index 1.719 ~ 1.723, density 3.61; Mohs hardness 8 ~ 9; produced in metamorphic limestone and skarn.
Tafi Stone is rare in China, but in China, one unit exhibited 1.32 carats of Tafi Stone (the second in the world, China ranked first). This unit is the Shijiazhuang School of Economics (formerly Hebei Institute of Geology). The school has a museum of earth sciences, and Tafi Stone is on display at the Gem and Minerals Hall on the third floor of the museum.
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