Turquoise
Hydrated phosphate of copper and aluminium, CuAl6(PO4)4(OH)8·4H2O
Category
Browse sedimentary or igneous associated mineral specimens identified by the Rock Identifier community.
Turquoise
Hydrated phosphate of copper and aluminium, CuAl6(PO4)4(OH)8·4H2O
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite/Iron inclusions
Quartz with inclusions (likely Chlorite or Hornblende) and country rock
SiO2 (Quartz) with associated ferromagnesian minerals
Magnetite / Ironstone
Magnetite (Fe3O4)
Greenschist
Greenschist (containing Chlorite, Actinolite, and Epidote)
Green Fluorite
Calcium Fluoride (CaF2)
Blue Calcite
Calcium Carbonate (CaCO3)
Yellow Calcite
Calcium Carbonate (CaCO3)
Dalmatian jasper
Orbicular microcrystalline quartz rock, commonly rhyolitic or volcanic-feldspar matrix with black arfvedsonite/alkali-amphibole inclusions
Galena
Lead(II) sulfide (PbS)
Fluorite (Rainbow Fluorite)
Calcium Fluoride (CaF2)
Fluorite
Calcium Fluoride (CaF2)
Obsidian
Obsidian (Volcanic Glass, SiO2 + impurity)
Turquoise
Hydrated copper and aluminum phosphate (CuAl6(PO4)4(OH)8·4H2O)
Red Chert (Jasper)
Silicon Dioxide (SiO2)
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
Granodiorite
Granodiorite (calc-alkaline phaneritic igneous rock)
Yellow Jasper
Silicon Dioxide (SiO2) with iron hydroxides (goethite)
Yellow Calcite
Calcium Carbonate (CaCO3)
Granite
Granite
Granodiorite
Granodiorite (Intermediate intrusive igneous rock)
Biotite Schist
Biotite Schist
Chert (and/or Flint)
Silicon Dioxide (SiO2)
Jasper (Picture Jasper)
Quartz (Silicon Dioxide) - SiO2 with impurities
Diorite (Salt and Pepper Rock)
Diorite
Yellow Agate
Silicon Dioxide (SiO2) - variety of Chalcedony
Vesicular basalt (scoria-like volcanic rock)
Vesicular basalt; commonly composed of plagioclase, pyroxene, olivine, and volcanic glass
Diorite
Intrusive Igneous Diorite
Milky Quartz
Silicon Dioxide (SiO2)
Jasper with Hematite
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3)
Lapis Lazuli
Lapis Lazuli (Primary mineral: Lazurite, (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
Amygdaloidal Basalt with Epidote
Amygdaloidal Basalt (Mafic volcanic rock)
Magnetite (Lodestone variety)
Magnetite (Fe3O4)
Magnetite
Iron(II,III) oxide (Fe3O4)
Red Jasper
Silicon dioxide (SiO2) with hematite impurities
Tufa (Limestone)
Calcareous Tufa (CaCO3)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Red Jasper (Opaque Chalcedony)
Jasper / Silicon Dioxide (SiO2) with Ferric Iron inclusions
Green Jasper
Jasper (variety of Microcrystalline Quartz, SiO2)
Rhodonite with Manganese Oxides
Rhodonite (Mn,Fe,Mg,Ca)SiO3
Chalcopyrite
Chalcopyrite (CuFeS2)