Mineral GuideGems
How the Earth was Formed
Marbles
Mineral Gallery
Mining of Metals
Minor Gems
Ores
Petroleum
Precious Stones
Agate gem stone
Amber gem stone
Beryl gem stone
Birth Stones
Chrysolite gem stone
Crystalline Quartz gem stones
Diamond gem stone and Corundum
Epidote gem stone
Feldspar gem stone
Garnet gem stone
Lapis Lazuli gem stone
Malachite gem stone
Obscurely Crystalline Quartz gem stones
Opal gem stone
Ornamental gem stones
Alabaster gem stone
Precious Serpentine gem stone
Rhodonite gem stone
Smithsonite gem stone<
Smithsonite Polished picture
Thulite gem stone
Topaz gem stone
Tourmaline gem stone
Turquoise gem stone
Quartz and the Silicates
Useful websites
Smithsonite gem stone
Smithsonite is a carbonate of zinc mined extensively as an ore of that metal and sometimes possessing sufficient translucency and beauty of color to make it prized as an ornamental stone.Smithsonite Polished picture