featured A Brief Introduction to Minerals
Minerals, by definition, are naturally occurring “inorganic” (Not containing any organic) substances, often characterized by a precise crystal structure. Its “chemical structure” (The atomic arrangement of a substance) can be exact or can...
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The Definitive Tourmaline Buying Guide
Tourmaline is one of the most varied gemstone groups a buyer can encounter. It occurs in vivid green, pink, red, blue, yellow, purple, brown, black, colorless, and multicolored combinations, while...
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