pierres précieuses

pierres précieuses de topaze
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Pierres précieuses en titane
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Pierres précieuses druzy en titane
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Pierres précieuses drusy en titane
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Pierres précieuses en quartz aura titane
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Pierres précieuses en titane
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Titanite (Sphene) Gemstones
Titanite (Sphene) Gemstones Introduction Titanite, also known as sphene, is a rare and captivating gemstone known for its unique optical properties and vibrant colors. It belongs to the nesosilicate group and is composed of calcium, titanium, silicon, and oxygen, with the chemical formula CaTiSiO5 . The name "titanite" is derived from the Titans, Greek mythological figures, due to its strong and radiant crystal structures . Physical Properties ·         Color: Titanite can occur in various colors, including yellow, green, brown, black, and colorless. The color variations are often attributed to trace... 続きを読む
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