Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
Category
Browse mineral (tectosilicate) specimens identified by the Rock Identifier community.
Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Fluorite Carving
Fluorite (Calcium Fluoride, CaF2)
Chrysocolla on Matrix
Hydrated copper phyllosilicate (Cu,Al)2H2Si2O5(OH)4·nH2O
Fluorite
Calcium Fluoride (CaF2)
Quartz (Iron-Stained or Milky)
Silicon Dioxide (SiO2)
Turquoise
Turquoise (CuAl6(PO4)4(OH)8·4H2O)
Limonite Concretion (Goonie or Rattlestone)
Limonite (FeO(OH)·nH2O)
Amygdaloidal Basalt
Amygdaloidal Mafic Volcanic Rock (Basalt)
Malachite
Copper carbonate hydroxide, Cu2CO3(OH)2
Chrysocolla in Matrix
Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O)
Blue Apatite
Apatite group (Ca5(PO4)3(F,Cl,OH))
Red Sandstone
Arenite (SiO2 with Fe2O3)
Septarian Nodule
Septarian Concretion (Calcium Carbonate/Aragonite/Calcite)
Pyrite in Quartz
Silicon Dioxide (SiO2) with Iron Sulfide (FeS2)
Limonite (Iron Ore)
Hydrated ferric oxide (FeO(OH)·nH2O)
Covellite
Covellite (CuS)
Granite with Hematite staining
Granitoid (Quartz, Feldspar, Mica) with Iron Oxide (Fe2O3)
Red Sandstone
Arenite (primarily Quartz with Iron Oxide coating)
Schist (Micaceous)
Mica Schist
Tree Agate
Silicon dioxide (SiO2)
Sandstone
Arenite (SiO2 primarily)
Turquoise
CuAl6(PO4)4(OH)8·4H2O
Pyrite
Iron Disulfide (FeS2)
Chrysocolla
Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O)
Turquoise
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
Kidney Stone
Calcium Oxalate (CaC2O4·nH2O)
Sulfur on Quartz
Native Sulfur (S8) with Quartz (SiO2)
Azurite
Azurite (Cu3(CO3)2(OH)2)
Chrysocolla
Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O)
Gneiss
Foliated Metamorphic Rock (Gneiss)
Quartz (Milky/Rose variety)
Silicon Dioxide (SiO2)
Glaucophane-bearing Schist (Blueschist)
Blueschist (Glaucophane-Lawsonite Schist)
Pink Granite
Granite (Phaneritic Quartz-Feldspar Rock)
Gneiss
Gneiss
Emerald in Host Rock
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
Citrine
SiO2 (Silicon Dioxide)
Hematite
Hematite (Fe2O3)
Fluorite (Rainbow or Multi-colored Fluorite)
Fluorite (Calcium Fluoride - CaF2)
Granodiorite (or Granite) Pebble
Phaneritic Felsic Igneous Pebble
Granite or Pegmatite in host rock
Granitoid / Felsic Intrusive Rock
Quartz Geode
SiO2 (Silicon Dioxide)