Mineral GuideGems
How the Earth was Formed
Marbles
Mineral Gallery
Mining of Metals
Minor Gems
Ores
Petroleum
Precious Stones
Quartz and the Silicates
Asbestus picture<
Cats Eye Quartz Polished picture
Feldspar picture
Garnet picture
Opal picture
Quartz Crystal picture
Rutilated Quartz Polished picture
Small Garnets in Rock picture
Smoky Quartz picture
Useful websites
Asbestus picture
