Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Category
Browse mineral (evaporite) specimens identified by the Rock Identifier community.
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Chrysocolla and Azurite on Matrix
Hydrated copper silicate (Cu,Al)2H2Si2O5(OH)4 (Chrysocolla) and Copper carbonate hydroxide Cu3(CO3)2(OH)2 (Azurite)
Iron-stained Quartz
Silicon Dioxide with Iron Oxide (SiO2 with Limonite/Hematite impurities)
Calcite
Calcium Carbonate (CaCO3)
Diamond
Diamond (pure Carbon, C)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Raw Diamond
Diamond (C)
Diamond (Round Brilliant Cut)
Diamond (Pure Carbon, C)
Malachite
Copper(II) carbonate hydroxide, Cu2CO3(OH)2
Fursuit (Synthetic Fur Specimen)
Canis anthropomorphus syntheticus
Greenstone
Metabasalt / Chlorite-Epidote Schist
Diorite
Diorite (Intermediate intrusive igneous rock)
Granite
Granite (primarily Quartz, Feldspar, and Mica)
Granite
Phaneritic Igneous Rock (composed mostly of Quartz, Feldspar, and Mica)
Opal
Hydrous silicon dioxide (SiO2·nH2O)
Greenstone / Greenstone Pebble
Greenschist (metamorphosed basalt or gabbro)
Granite
Granite (Phaneritic intrusive igneous rock)
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Granite
Granite
Green Aventurine
Aventurine Quartz (SiO2 with inclusions of Fuchsite mica)
Serpentinite (Serpentine Rock)
Primarily composed of serpentine group minerals, such as antigorite, chrysotile, and lizardite. Chemical formula for serpentine minerals is (Mg,Fe)3Si2O5(OH)4.
Sandstone
Arenite (primarily SiO2)
Diamond
Diamond (pure carbon C)
Rough Diamond
Carbon (C)
Pink Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Eudialyte
Eudialyte (Na4(Ca,Ce)2(Fe2+,Mn,Y)ZrSi8O22(OH,Cl)2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
Sandstone
Arenite (Siliclastic sedimentary rock)
Pyrite
Iron Sulfide (FeS2)
Schist
Mica Schist (formula variable based on mineral content, typically containing [K,Al,Fe,Mg,Si,O,H])
Greenschist
Greenschist (Chlorite Schist)
Granite
Felsic Intrusive Igneous Rock (SiO2, Al2O3, K2O, Na2O)
Granite
Phaneritic plutonic rock (Quartz, Feldspar, Mica)
Granite (River-worn Cobble)
Phaneritic Felsic Igneous Rock (primarily Quartz, Potassium Feldspar, and Plagioclase)
Turquoise
Hydrated phosphate of copper and aluminum (CuAl6(PO4)4(OH)8·4H2O)
Eudialyte
Na15Ca6Fe3Zr3Si(Si25O73)(O,OH,H2O)3(Cl,OH)2
Fluorite (likely)
Calcium Fluoride (CaF2)
Pegmatite
Granitic Pegmatite
Sandstone with Algae Growth
Arenite with Chlorophyta/Lichen
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
Milky Quartz
Quartz (Silicon Dioxide, SiO2)