Basalts Mica China Clays Limestones
Igneous Rocks Sedimentary Rocks Extra Terrestrial Rocks Metamorphic Rocks
Anthracite Lignite Bitumous Coal Jet
Chondrite Achondrite Tektite Stony Iron
Jet Flint Chalk Peat
Jet Amber Tektite Meerschaum
Amber Potash Rock Mudstone Rock Gypsum
Meerschaum Lapis Lazuli Tektite Jet