Orthoclase Feldspar (Twinning Specimen)
Orthoclase (KAlSi3O8)
Category
Browse man made metamorphic style composite specimens identified by the Rock Identifier community.
Orthoclase Feldspar (Twinning Specimen)
Orthoclase (KAlSi3O8)
Feldspar (Orthoclase/Potassium Feldspar)
KAlSi3O8 (Potassium Aluminum Silicate)
Limestone
Calcium Carbonate (CaCO3)
Granite
Plutonic felsic igneous rock
Milky Quartz
Silicon Dioxide (SiO2)
Schist
Mica Schist
Quartzite (with Mica / Quartzite Schist)
SiO2 (Silica) with minor Muscovite Mica KAl2(AlSi3O10)(OH)2
Calcite
Calcium Carbonate (CaCO3)
Quartzite Pebble
Metamorphic Quartzite (SiO2)
Quartzite
Metamorphic Quartzite (SiO2)
Quartzite
Metamorphic Quartzite (SiO2)
Quartzite
Metamorphic Quartzite (SiO2)
Quartzite
Metamorphic Quartzite (SiO2)
Quartzite
Metamorphic Quartzite (SiO2)
Quartzite
Metamorphic Quartzite (SiO2)
Quartzite Pebble
Metamorphic Quartzite (SiO2)
Quartzite River Rock
Metamorphic Quartzite (SiO2)
Granite
Granite (composed primarily of silica-rich minerals like quartz and feldspar)
Chert Pebble
Microcrystalline Quartz (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Aventurine
Quartz (SiO2) with fuchsite inclusions
Microcline Feldspar
KAlSi3O8
Quartzite
Quartzite (primarily SiO2)
Bull Quartz with Mica and Host Rock
Massive Quartz (SiO2) with Muscovite/Chlorite inclusions
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Clear Quartz Crystal Cluster
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Planet Earth
Gaia (Silicate Terrestrial Planet)
Green Fluorite
Fluorite (Calcium Fluoride, CaF2)
Potassium Feldspar (Orthoclase)
KAlSi3O8
Pyrite-bearing rock (iron pyrite)
Pyrite, FeS₂, likely disseminated or massive in a host rock
Tumbled and polished quartz crystal points
Quartz (silicon dioxide, SiO₂), chiefly rock crystal with smoky or included varieties
Limonite or Goethite (Ironstone)
Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
Granite (Weathered)
Phaneritic Felsic Igneous Rock
Granite Pebble
Granite (Phaneritic intrusive igneous rock)
Granite
Granite (Mainly Quartz, Feldspar, and Mica)
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
Potassium Feldspar (Orthoclase / Microcline)
KAlSi3O8