Peridot in Basalt
Olivine ((Mg, Fe)2SiO4) in Basalt
Category
Browse igneous or sedimentary (anthropogenic modification) specimens identified by the Rock Identifier community.
Peridot in Basalt
Olivine ((Mg, Fe)2SiO4) in Basalt
Ruby Zoisite
Anyolite (Composition of Green Zoisite, Black Tschermakite, and Red Corundum)
Pink Quartz (Rose Quartz)
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2) with aluminum impurities
Epidote (with Quartz and Feldspar)
Epidote (unakalite/unite), Ca2(Al2Fe3+)(SiO4)(Si2O7)O(OH)
Bornite (Peacock Ore)
Bornite (Cu5FeS4)
Sodalite
Sodium Aluminum Silicate Chloride (Na8(Al6Si6O24)Cl2)
Amazonite
K(AlSi3O8) - Microcline
Rose Quartz
Silicon dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Milky Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
Milky Quartz
Silicon Dioxide (SiO2)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Smoky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Muscovite on Quartz (Mica host rock)
KAl2(AlSi3O10)(OH)2 (Muscovite) in SiO2 (Quartz)
Muscovite Mica
Muscovite - KAl2(AlSi3O10)(F,OH)2
Sodalite
Na8(Al6Si6O24)Cl2
Muscovite Mica
Muscovite - KAl2(AlSi3O10)(OH)2
Milky Quartz
Crystalline Silicon Dioxide (SiO2)
Sodalite
Na8(Al6Si6O24)Cl2 (Sodium Aluminum Silicate Chloride)
Peach Moonstone
Orthoclase Feldspar (KAlSi3O8)
Quartz (Yellow/Citrine variety)
Crystalline Silicon Dioxide (SiO2)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Sunstone
Oligoclase (Plagioclase Feldspar) - (Na,Ca)(Si,Al)4O8 with Hematite or Copper inclusions
Amazonite
Potassium Feldspar (KAlSi3O8) with lead impurities
Carnelian (Red Chalcedony)
SiO2 (Silicon Dioxide with Iron Oxide impurities)
Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
Quartz
Silicon Dioxide (SiO2)
Carnelian Agate
Silicon dioxide (SiO2) - Chalcedony variety
Citrine Quartz Sphere
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide with trace inclusions (SiO2)
Blue Sapphire
Corundum (Al2O3)
Ruby (set in a gold pendant)
Ruby (Variety of Corundum, Al2O3)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Rose Quartz
Silicon dioxide (SiO2)
Conglomerate
Conglomerate (a clastic sedimentary rock)
Sandstone (Quartzite-rich)
Clastic sedimentary rock (primarily SiO2)
Sandstone (lithic wacke/arenite)
Clastic sedimentary rock (primarily SiO2)
Sandstone (likely Graywacke or Arkose variant)
Clastic Sedimentary Rock (SiO2 based)