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Chemical Formula: Ca₂(Mg
This specimen of vanadinite is near perfect in appearance
Weight: ~ 83 oz
Location: Madagascar
Cavansite is also found associated with a variety of zeolite minerals such as stilbite
Green Tourmaline in Quartz - Old Stock Chemical Formula: Ca₂(MgThere are many, many collectors and mineral enthusiasts who focus solely on the world of tourmaline. With so many different species and locations from all around the world, it is almost a requirement to have some specimen of tourmaline in your collection. Why not start off with a beautiful dark green from Brazil? Size: 3. 7 x 2. 2 x 0. 8 in. Weight: 5. 7 oz Chemical Formula: XY3Z6B3Si6(O,OH)30(OH,F) Location: Brazil Tourmaline is a boron silicate
US$ 620.56
US$ 34.91
US$ 25.95