Pink Feldspar (Orthoclase)
Orthoclase Feldspar (KAlSi3O8)
mineral
Category
Igneous, Metamorphic, And Sedimentary
Browse igneous, metamorphic, and sedimentary specimens identified by the Rock Identifier community.
Learn about Igneous, Metamorphic, And Sedimentary in the encyclopedia
View all →
Sodalite (Sunset Sodalite)
Sodalite: Na8(Al6Si6O24)Cl2
mineral
Banded Agate (Yellow Agate)
Silicon Dioxide (SiO2)
mineral
Citrine
Silicon Dioxide (SiO2) with iron impurities
mineral
White Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Orange Quartz
Crystalline Silicon Dioxide (SiO2) with iron oxide inclusions
mineral
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Muscovite Mica (Golden/Yellow variety)
KAl2(AlSi3O10)(F,OH)2
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Feldspar (specifically Orthoclase)
Potassium aluminum silicate (KAlSi3O8)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Garnet (Polished)
Nesosilicate (Group formula: X3Y2(SiO4)3)
gemstone
Pyrite
Iron Sulfide (FeS2)
mineral
Mixed Mineral and Fossil Collection
Multi-specimen assemblage (SiO2, CaCO3, FeS2, etc.)
mineral
Limonite (Iron Ore)
FeO(OH)·nH2O (Hydrous ferric oxide)
mineral
Onyx Marble (Banded Calcite)
Calcite (Calcium Carbonate, CaCO3)
sedimentary
Almandine Garnet in Matrix
Almandine Garnet (Fe3Al2(SiO4)3) in Schist/Quartz Matrix
metamorphic
Blue Kyanite
Kyanite (Al2SiO5)
mineral
Specular Hematite (Specularite)
Iron(III) oxide (Fe2O3)
mineral
Rhodonite
Manganese Inosilicate (Mn,Fe,Mg,Ca)SiO3
mineral
Kyanite
Kyanite (Al2SiO5)
mineral
Purple Dyed Dalmatian Stone
Dyed Peralkaline Trachyte
igneous
Dalmation Stone
Peralkaline Rock (Microcline Quartz mixture with Arfvedsonite)
igneous
Dalmation Stone
Peralkaline Rock (SiO2 with Arfvedsonite)
igneous
Marble
Marble (primarily Calcite, CaCO3 or Dolomite, CaMg(CO3)2)
Metamorphic Rock
Marble
Marble (metamorphosed limestone or dolostone), primarily composed of calcite (CaCO3) or dolomite (CaMg(CO3)2)
metamorphic
Dalmatian Stone
Dalmatian Jasper (a trade name for an igneous microcrystalline rock composed mostly of feldspar, quartz, and dravite)
igneous
Dalmatian Jasper
Dalmatian Stone (a microcrystalline quartz and feldspar rock with arfvedsonite)
igneous
Epidote (Unakite variety)
Epidosite (Metasomatic rock containing Ca2(Al,Fe)3(SiO4)3(OH))
metamorphic
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
Mineral
Aventurine
Silicon Dioxide (SiO2) with inclusions
metamorphic
Greenstone / Epidosite
Epidosite (Metasomatic rock consisting mainly of Epidite Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH) and Quartz)
metamorphic
Orange Quartz (Citrine Quartz)
Silicon Dioxide (SiO2) with iron impurities
mineral
Blue Kyanite
Kyanite (Al2SiO5)
mineral
Greenstone (Greenschist facies)
Greenschist (composed primarily of Chlorite, Actinolite, and Epidote)
metamorphic
Granite Gneiss
Felsic Gneiss (composed of Quartz, Feldspar, and Biotite)
metamorphic
Greenstone
Greenschist / Greenstone (containing Chlorite, Epidote, Actinolite)
metamorphic
Greenstone
Greenschist (Greened Metabasalt)
metamorphic
Greenstone
Metabasalt / Greenschist facies rock
Metamorphic
Greenstone
Greenschist / Meta-basalt
metamorphic