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Stripe
Tanzanite is the blue and violet variety of the mineral zoisite (a calcium aluminium hydroxyl sorosilicate), caused...
Topaz is colorless and transparent but is usually tinted by impurities; typical...
Blue topaz is the state gemstone of the US state of Texas....
Topaz London Blue
Topaz With Rutile
Tourmaline (/ˈtʊərməliːn/ toor-mə-leen) is a crystalline boron silicate mineral compounded with elements...
Troilite is a rare iron sulfide mineral with the simple formula of...
Quartz is the second-most-abundant mineral in Earth's continental crust, after feldspar. Its...