Geology & Rock Table of Contents
•Coal
Minerals
•Crystals
•Quartz
•Feldspar and Mica
•Augite and Hornblende
•Olivine
•Galena and Cassiterite
•Iron Ores
•Bauxite
•Diamond and Graphite
•Beryl and Tourmaline
•Opal
•Geodes and Agates
•Fool's Gold
•Halite and Gypsum
•Calcite and Rhodochrosite
•Barite and Celestite
•Kyanite and Garnet
•Malachite and Azurite
•Fluorite
•Zeolite Minerals
•Jet
•Amber
•Sapphire and Ruby