Chrysocolla
Hydrated copper silicate (Cu,Al)2H2Si2O5(OH)4·nH2O
Category
Browse mineral (extraterrestrial) specimens identified by the Rock Identifier community.
Chrysocolla
Hydrated copper silicate (Cu,Al)2H2Si2O5(OH)4·nH2O
Granite
Intrusive igneous rock
Diorite (Porphyritic) / Granite
Plutonic Igneous Rock (Granodiorite / Diorite)
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
Silver Nuggets (Natural or Cast)
Native Silver (Ag)
Quartz Geode
Silicon Dioxide (SiO2) in Geodic Cavity
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Black Spinel
Magnesium Aluminum Oxide (MgAl2O4)
Cobaltian Calcite
Cobalt-bearing Calcite (Ca,Co)CO3
Turquoise and Hematite
Turquoise (CuAl6(PO4)4(OH)8·4H2O) and Hematite (Fe2O3)
Mixed Gemstone and Mineral Collection
Mixed Silica and Carbonate minerals (SiO2, CaSO4·2H2O, etc.)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Magnetite
Magnetite (Fe3O4)
Green glassy slag or manufactured glass bead
Noncrystalline silicate glass; likely industrial glass/slag, not a true mineral
Quartz-rich Diorite
Diorite (Phaneritic intermediate igneous rock)
Gneiss
Gneiss
Granodiorite
Granodiorite
Granite fragment
Granite (Felsic intrusive igneous rock)
Gneiss (High-grade Metamorphic Rock)
Gneiss
Granite
Granite (compositionally: Quartz, Alkali Feldspar, and Plagioclase)
Gneiss
Gneiss (High-grade metamorphic rock)
Banded Gneiss
Gneiss (Metamorphic rock composed of feldspar, quartz, and mica)
Native Copper in Basalt
Cuprum (with Host Basalt)
Gneiss
High-grade Metamorphic Gneiss
Gneiss
Gneiss
Granite Pebble
Granite
Red Granite Pebble
Intrusive Felsic Igneous Rock (Granite)
Granite Pebble
Intrusive Igneous Rock (Granite)
Gneiss
Gneiss (Metamorphic Rock)
Gneiss
Gneiss (Metamorphic Rock)
Pink Granite
Granite (Phaneritic Quartz-Feldspar rock)
Diorite
Phaneritic Intermediate Igneous Rock
Granite
Granite (Felsic Plutonic Rock)
Gneiss
Metamorphic Gneiss (High-grade regional metamorphism)
Rainbow Fluorite
Fluorite (Calcium Fluoride, CaF2)
Carved serpentine wing sculpture
Serpentine-group rock, chiefly antigorite/lizardite: Mg3Si2O5(OH)4
Green Fluorite
Fluorite (Calcium Fluoride, CaF2)
Vesicular basalt (likely weathered lava rock)
Basalt; chiefly plagioclase, pyroxene, and often olivine
Limonite (Iron Ore)
Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)
Biotite-rich gneiss (probable)
Foliated quartz–feldspar–biotite gneiss; composition commonly includes quartz (SiO₂), feldspar, and biotite mica
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)