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
Feldspar picture
