guide to sale cassiterite stone,Cassiterite - Colored Stones, Burmese Gems, Rare Stones, Loose .Cassiterite - , Buy Gemstones Online, Loose stones, Color stones, Burmese gemstone, Colorstone, Ruby, Sapphire, Spinel Gemstone Market Online,ruby guide, sapphire guide, birthstone, Wedding Anniversary Gemstone, gemshop, gemstore.guide to sale cassiterite stone,Cassiterite Gemstone & Information | Gemopedia by JTV - JTVMany of the economical Cassiterite deposits exist in placer stream deposits where this very heavy mineral collects as rounded water worn pebbles. The name Cassiterite is derived from the Greek "kassiteros", meaning tin. Alternate Names. Tin Stone, Tin Ore, Wood Tin, Toad's Eye Tin. Colors. Dark Brown, Black, Yellowish.