Green Fluorite (Beaded)
Fluorite (Calcium Fluoride, CaF2)
Category
Browse industrial byproduct specimens identified by the Rock Identifier community.
Green Fluorite (Beaded)
Fluorite (Calcium Fluoride, CaF2)
Diamond (Green tinted)
Carbon (C) with trace impurities or lattice defects
Chalcopyrite
Copper Iron Sulfide (CuFeS2)
Pink Chalcedony (Agate/Jasper blend)
Silicon Dioxide (SiO₂)
Ruby
Corundum (Al2O3 with Chromium trace elements)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartzite
Quartzite (SiO2)
Desert Rose (Gypsum Rose)
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
Aquamarine
Beryl (Be3Al2Si6O18 with iron impurities)
Schist
Chlorite-Mica Schist
Quartzite
Metamorphosed sandstone (primarily SiO2)
Chert (varieties: Flint, Jasper)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
Orange Quartzita (Calcite-stained Quarzite)
Metamorphic Silicon Dioxide (SiO2) with iron/calcium inclusions
Quartz Vein Rock
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2) with aluminum impurities and natural radiation
Quartzite
Quartzite (primarily SiO2)
Specular Hematite
Hematite (Iron Oxide, Fe2O3)
Basalt
Extrusive mafic igneous rock
Red Garnet
Pyrope-Almandine series (Mg3Al2(SiO4)3 to Fe3Al2(SiO4)3)
Rough Green Sapphire (Corundum)
Corundum (Al2O3 - Aluminum Oxide with trace elements)
Granitic Pegmatite
Pegmatite containing Quartz, Feldspar, and Muscovite mica
Schist
Mica Schist (Medium-grade Metamorphic Rock)
Quartzite (specifically a river-worn cobble)
Quartzite (primarily Silicon Dioxide, SiO2)
Copper Ore (likely Chalcopyrite in Matrix)
Chalcopyrite (CuFeS2)
Green Calcite
Calcium Carbonate (CaCO3)
Ruby (Corundum)
Aluminum oxide (Al2O3) with Chromium traces
Cubic Zirconia
Zirconium Dioxide (ZrO2)
Olivine-bearing Basalt / Scoria
Mafic Igneous Rock (primarily (Mg, Fe)2SiO4)
Quartzite
Quartzite (SiO2)
Pegmatite (Granitic)
Granitic Pegmatite containing Quartz, Feldspar, and Tourmaline (Schorl)
Gray Agate
Chalcedony (Silicon Dioxide, SiO2)
Chalcedony (Commonly known as Carnelian or Agate pebble)
Microcrystalline Quartz (SiO2)
Desert Rose (also known as Sand Rose)
Gypsum (CaSO4·2H2O) or Barite (BaSO4) with sand inclusions
Basalt
Mafic Igneous Rock (primarily Plagioclase Feldspar and Pyroxene)
Graphite-veined Quartzite
Meta-sedimentary Quartzite with Carbonaceous/Graphitic Inclusions (SiO2 + C)
Basalt
Extrusive mafic igneous rock
Green Calcite
Calcite (CaCO3)
Agate
Silicon Dioxide (SiO2) - variety of Chalcedony
Pegmatite (Granitic)
Granitic Pegmatite
Iron-Stained Quartz (Riverside Cobble)
Silicon Dioxide (SiO2) with Limonite/Hematite inclusions
Olivine (Peridot)
Magnesium Iron Silicate (Mg, Fe)2SiO4
Agate
Cryptocrystalline Quartz (SiO2)