Orthoclase Feldspar
K(AlSi3O8)
Category
Browse granite specimens identified by the Rock Identifier community.
Orthoclase Feldspar
K(AlSi3O8)
Granodiorite River Pebble
Granodiorite
Granite Pebble
Granite (composed primarily of Quartz: SiO2, Feldspar: KAlSi3O8, and Mica: K(Mg,Fe)3AlSi3O10(OH)2)
Granite (Orthoclase rich)
Granite (composed primarily of Quartz and Potassium Feldspar KAlSi3O8)
Granodiorite
Granodiorite (intermediate plutonic rock)
Granite Pebble
Igneous Intrusive Rock (Quartz-Feldspar-Mica Phenocrysts)
Granite Cobble
Granite (composed primarily of Quartz, Feldspar, and Mica)
Granite Pebble
Felsic Igneous Rock (Granitic composition)
Granite Pebble
Intrusive Magmatic Granite (Quartz, Feldspar, Mica)
Unakite
Unakite Lepidolite
Pink Feldspar
Orthoclase Feldspar (KAlSi3O8)
Granite (Weathered)
Plutonic Igneous Rock (Granitic)
Diorite
Diorite
Pink Quartz Grains
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Muscovite Mica
Muscovite [KAl2(AlSi3O10)(OH)2]
Quartz (Crystal Cluster)
Silicon Dioxide (SiO2)
Quartz (Variety: Rose Quartz/Smoky Quartz mix)
Silicon Dioxide (SiO2)
Yellow Quartz (Citrine Quartz)
Silicon Dioxide (SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Magnetite (Lodestone)
Iron(II,III) oxide (Fe3O4)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Smoky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Quartz (Smoky Quartz variant)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Iron-stained or Milky)
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Small Fragment)
Silicon Dioxide (SiO2)
Quartz (Milky or Clear fragment)
Silicon Dioxide (SiO2)
Smoky Quartz with Feldspar
SiO2 (Quartz) with KAlSi3O8 (Potassium Feldspar)
Granitic Pegmatite
Granitic Pegmatite (principally Quartz, Feldspar, and Mica)
Quartz (Milky or Smoky Quartz)
Quartz (Silicon Dioxide, SiO2)
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
Amazonite
Microcline (KAlSi3O8) with lead impurities
Diorite (Salt and Pepper Rock)
Diorite
Granite / Quartz Vein Rock
Granitoid with Quartz (SiO2)
Hematite (Iron Ore)
Iron(III) oxide (Fe2O3)