Almandine Garnet
Almandine - Fe3Al2(SiO4)3
Category
Browse mineral with metamorphic or igneous host specimens identified by the Rock Identifier community.
Almandine Garnet
Almandine - Fe3Al2(SiO4)3
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Druzy Quartz on Agate/Chert
Silicon Dioxide (SiO2)
Yellow Jasper
Chalcedony (SiO2) with iron oxide inclusions
Schist (specifically Chlorite/Greenschist)
Chlorite Schist
Black Tourmaline
Schorl (Na(Fe²⁺)₃Al₆(OH)₄(BO₃)₃Si₆O₁₈)
Mica (Muscovite)
Muscovite, KAl2(AlSi3O10)(OH)2
Quartz (Druzy Quartz)
Silicon Dioxide (SiO2)
Granitic Gneiss
Gneiss (Polymetamorphic Granitic Gneiss)
Green Calcite
Calcite (CaCO3)
Granitic Gneiss
Gneiss (high-grade metamorphic rock primarily of quartz, feldspar, and mica)
Gneiss
Gneiss
Migmatite
Migmatite (Mixed metamorphic-igneous rock)
Banded Gneiss (River Cobble)
Gneiss (a high-grade metamorphic rock)
Crazy Lace Agate
Microcrystalline Quartz (SiO2)
Gneiss (Schistose)
Gneiss
Granite / Gneiss Complex
Felsic Plutonic Rock (Granite) or High-grade Metamorphic Rock (Gneiss)
Opal
Hydrated Amorphous Silica (SiO2·nH2O)
Liesegang Ring Siltstone
Siltstone with iron oxide Liesegang bands
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Soapstone
Steatite (composed primarily of Talc: Mg3Si4O10(OH)2)
Milky Quartz with Iron Oxide Staining
Quartz (Silicon Dioxide, SiO2)
Gneiss (Cobble)
Gneiss
Jasper (Tumbled)
Silicon Dioxide (SiO₂)
Banded Gneiss (with Quartz Vein)
Gneiss (SiO2 and varied Silicates)
Smoky Quartz (with Hematite inclusions)
Silicon Dioxide (SiO2)
Milky Quartz with Iron Inclusions
Quartz (Silicon Dioxide, SiO2)
Rough Garnet (likely Almandine or Pyrope)
Garnet group; Almandine Fe3Al2(SiO4)3 or Pyrope Mg3Al2(SiO4)3
Citrine
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Blue Sapphire (Ceylon)
Corundum (Al2O3) with traces of Iron and Titanium
Quartz (River Pebble)
Quartz (Silicon Dioxide, SiO2)
Quartz (Milky or Rough Variety)
Silicon Dioxide (SiO2)
Citrine
Silicon Dioxide (SiO2) - Yellow Quartz variety
Almandine Garnet
Almandine (Fe3Al2(SiO4)3)
Ruby
Corundum (Al2O3 with Chromium traces)
Citrine
Citrine (Silicon Dioxide, SiO2)
Ruby
Corundum (Al2O3:Cr)
Sodalite
Na8(Al6Si6O24)Cl2 (Sodalite)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)