Greisen (Quartz-Muscovite-Turretine Rock)
Greisen
Metamorphic Rock
Category
Mixed: Igneous And Sedimentary
Browse mixed: igneous and sedimentary specimens identified by the Rock Identifier community.
Sapphire
Corundum (Al2O3)
mineral
Granite
Granite
Igneous
Granite
Granite
Igneous
Granite
Granite
Igneous
Quartz with Mica
SiO2 (Quartz) with Potassium aluminum silicate (Muscovite)
Mineral
Granite
Granite
Igneous
Yellow Sapphire or Citrine
Al2O3 (Corundum) or SiO2 (Quartz)
mineral
Granite or Pegmatite in host rock
Granitoid / Felsic Intrusive Rock
Igneous
Basalt
Basalt
igneous
Granite
Granite
Igneous
Basalt (Weathered)
Mafic Igneous Rock
igneous
Basalt
Mafic Igneous Rock
igneous
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral
Weathered Basalt with Iron Staining
Mafic Igneous Rock
igneous
Vesicular Basalt
Mafic Igneous Rock
igneous
Basalt
Mafic Igneous Rock
igneous
Basalt (with Iron Staining)
Mafic Igneous Rock
igneous
River Pebble (Basalt or Gabbro)
Mafic Igneous Rock
igneous
Basalt
Mafic Igneous Rock
igneous
Basalt
Mafic Igneous Rock
igneous
Basalt
Mafic Igneous Rock
igneous
Basalt
Mafic Igneous Rock
igneous
Basalt
Mafic Igneous Rock
igneous
Basalt
Mafic Igneous Rock
igneous
Garnet
Garnet Group (Silicate Minerals), formula varies e.g., Alm: Fe3Al2(SiO4)3
mineral
Quartz with inclusions
SiO2
mineral
Ruby (varieties of Corundum)
Aluminum oxide (Al2O3) with Chromium traces
mineral
Natural Gemstone Cabochons (Ruby, Moonstone, Emerald, Citrine)
Ruby (Al2O3:Cr), Moonstone (KAlSi3O8), Emerald (Be3Al2(SiO3)6:Cr), Citrine (SiO2)
mineral
Labradorite
Labradorite (Ca,Na)(Al,Si)4O8
mineral
Sodalite
Na8(Al6Si6O24)Cl2
mineral
Biotite or Phlogopite Mica
K(Mg,Fe)3(AlSi3O10)(F,OH)2
mineral
Granite fragment
Granite
igneous
Fluorite, Sodalite, and Rose Quartz collection
Calcium Fluoride (CaF2), Sodium Aluminum Silicate with Chlorine (Na8(Al6Si6O24)Cl2), Silicon Dioxide (SiO2)
mineral
Hypersthene
Hypersthene (Magnesium Iron Silicate - (Mg,Fe)SiO3)
mineral
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral
Sodalite
Na8(Al6Si6O24)Cl2
mineral
Rose Quartz
Silicon dioxide (SiO2)
mineral
Basalt with Iron Oxidation
Mafic Igneous Basalt
igneous
Basalt
Mafic Igneous Basalt
igneous
Basalt with Iron Oxides
Mafic Igneous Rock (Mafite)
igneous
Basalt
Mafic Igneous Basalt
igneous