Green Moss Agate
Silicon Dioxide (SiO2) with inclusions of hornblende or chlorite
Category
Browse sedimentary or igneous associated mineral specimens identified by the Rock Identifier community.
Green Moss Agate
Silicon Dioxide (SiO2) with inclusions of hornblende or chlorite
Magnetite (Iron Ore)
Magnetite (Fe3O4)
Milky Quartz
Silicon Dioxide (SiO2)
Sunstone and Garnet
Plagioclase Feldspar ((Na,Ca)(Al,Si)4O8) and Almandine Garnet (Fe3Al2(SiO4)3)
Granite
Granite
Granite
Phaneritic Felsic Intrusive Igneous Rock
Diorite (with Quartz veins)
Diorite
Rhyolite
Rhyolite (felsic extrusive igneous rock)
Pink Granite
Granite (enriched in Potassium Feldspar)
Porphyry
Porphyritic Rock
Moonstone (bead form)
Potassium Aluminum Silicate (KAlSi3O8) - a variety of Orthoclase Feldspar
Red Sandstone
Ferruginous Sandstone (SiO2 dominated with Fe2O3 cement)
Red Sandstone
Arenite (Ferruginous Sandstone)
Rhodochrosite
Manganese Carbonate (MnCO3)
Fluorite
Calcium Fluoride (CaF2)
Red Jasper
Microcrystalline Quartz (SiO2) with iron oxide inclusions
Jasper
Microcrystalline Quartz (SiO2)
Red Jasper (Chert)
Silicon dioxide with iron inclusions (SiO2)
Jasper (Green/Dragon Blood variety)
Silicon Dioxide (SiO2) with iron/clay inclusions
Blue Chalcedony
Chalcedony (a cryptocrystalline variety of Quartz - SiO₂)
Turquoise
CuAl6(PO4)4(OH)8·4H2O
Obsidian
Volcanic Glass
Basalt
Extrusive Igneous Rock (Mafic)
Scoria
Vesicular Basaltic Rock
Basalt with Olivine
Extrusive Mafic Igneous Rock
Granite
Phaneritic Felsic Igneous Rock
Green Aventurine
Quartz (SiO2) with Fuchsite inclusions
Moqui Marble (Iron-Oxide Concretion)
Iron Oxide Concretion (Fe2O3)
Ferruginous Chert (Jasper)
Silicon Dioxide (SiO2) with iron oxide inclusions
Basalt
Extrusive Igneous Rock
Basalt
Extrusive igneous rock
Quartz (Rose Quartz or Jasper variety)
Silicon Dioxide (SiO2)
Bismuthinite with Chalcopyrite and Quartz
Bismuthinite (Bi2S3) and Chalcopyrite (CuFeS2)
Pyrite
Iron Pyrite (FeS2)
Greenstone or Epidote-rich Metamorphic Rock
Chlorite/Epidote Schist or Greenstone
Banding Agate / Jasper Heart
Silicon Dioxide (Chalcedony / Quartz), SiO2
Basalt Pebble
Aphanitic mafic extrusive igneous rock
Sandstone (Ferruginous/Red Sandstone)
Clastic sedimentary rock (primarily SiO2 with Fe2O3)
Apache Tear (Obsidian)
Volcanic Glass (Amorphous SiO2)
Granite
Phaneritic Igneous Rock (primarily SiO2, Al2O3, K2O, Na2O)
Jasper
Silicon dioxide (SiO2)
Blue Apatite
Calcium Fluorophosphate - Ca5(PO4)3F