Milky Quartz with Mica
Silicon Dioxide (SiO2) with Muscovite Mica [KAl2(AlSi3O10)(OH)2]
Category
Browse mineral with metamorphic or igneous host specimens identified by the Rock Identifier community.
Milky Quartz with Mica
Silicon Dioxide (SiO2) with Muscovite Mica [KAl2(AlSi3O10)(OH)2]
Quartz (Water-worn Pebble)
Silicon Dioxide (SiO2)
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
Diorite Gneiss
Foliated Diorite Gneiss
Epidote
Epidote Group (e.g., Clinozoisite, Epidote, Piemontite), Epidote formula: Ca2(Al,Fe)3(SiO4)3(OH)
Banded Agate Geode
Silicon Dioxide (SiO2)
Turquoise
Hydrated phosphate of copper and aluminum, CuAl6(PO4)4(OH)8·4H2O
Banded Gneiss (with Quartz Vein)
Gneiss (Metamorphic rock of varying mineralogy)
Gneiss
Gneiss (High-grade metamorphic rock)
Gneiss
Gneiss (High-grade metamorphic rock)
Fancy Jasper
Silicon Dioxide (SiO2) with mineral inclusions
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Greenschist
Greenschist facies rock (containing chlorite, actinolite, albite, and epidote)
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Turquoise
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
Banded Gneiss
Gneiss (Metamorphic rock composed of feldspar, quartz, and mica)
Hematite
Iron(III) oxide (Fe2O3)
Pyrite
Iron Sulfide (FeS2)
Biotite (Black Mica)
Biotite (K(Mg,Fe)3AlSi3O10(OH)2)
Quartz Pebble
Silicon Dioxide (SiO2)
Banded Gneiss
Gneiss
Gneiss
Gneiss
Gneiss
Gneiss
Lapis Lazuli
Lapis Lazuli (Mineral composition: Lazurite (Na,Ca)8(AlSiO4)6(SO4,S,Cl,OH)2, Calcite, and Pyrite)
Quartz
Quartz (SiO₂)
Unidentifiable Rock Fragment
Malachite in Host Rock
Malachite - Cu2CO3(OH)2
Sulfur (in host rock)
Native Sulfur (S8)
Greenschist
Chlorite schist (Metamorphic rock dominated by chlorite, epidote, and actinolite)
Gneiss (River Cobble)
Gneiss (Foliated Metamorphic Rock)
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Emerald in Host Rock
Beryl (Be3Al2Si6O18) containing Chromium and/or Vanadium
River Chalcedony / Agate
Chalcedony (Silicon Dioxide, SiO2)
Chalcedony (Agate/Chert variety)
Silicon Dioxide (SiO₂)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Quartz (River Pebble)
Silicon Dioxide (SiO2)
Massive Quartz
Silicon Dioxide (SiO2)
Milky Quartz Geode Fragment
Silicon Dioxide (SiO2)
Agate
Agate (Silicon Dioxide - SiO2)
Greenstone
Metabasalt / Greenschist facies rock
Gneiss
Gneiss