Posts Tagged ‘pearl and tourmaline necklace’
GEMSTONES I LOVE – SOME FACTS ABOUT TOURMALINE
Facts about Tourmaline: Tourmaline is a crystalline boron-silicate mineral with additional elements such as aluminium, iron, magnesium, sodium, lithium, or potassium. Tourmaline is classified as a semi-precious stone and the gemstone occurs in a wide variety of colors. Tourmaline is actually a group of related varieties rather than a single species. The mineral Elbaite is…
Read MoreMy Favorite Gemstones Part 4 – Tourmaline
Another of my favorite gems is Tourmaline. Since I love green and pink, I am particularly fond of the multicolor and watermelon varieties. The tourmaline family aluminum and borosilicate minerals includes several separate minerals, one of which is called elabite. Elabite is the mineral in most gem tourmaline. Tourmaline has a Mohs scale hardness of…
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