Fuchsite
K(Al,Cr)2(AlSi3O10)(OH)2
mineral
Category
Mineral Composite
Browse mineral composite specimens identified by the Rock Identifier community.
Learn about Mineral Composite in the encyclopedia
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Quartz Vein Rock with Feldspar
Silicon Dioxide (SiO2) with Potassium Feldspar
mineral
Quartz Crystal Cluster
Silicon Dioxide (SiO2)
mineral
Quartz Geode Fragment
Silicon Dioxide (SiO2)
mineral
Yellow Quartz
Silicon Dioxide (SiO2)
mineral
Bismuthinite with Chalcopyrite and Quartz
Bismuthinite (Bi2S3) and Chalcopyrite (CuFeS2)
mineral
Quartz with Tourmaline and Iron Staining
Silicon Dioxide (SiO2) with accessory tourmaline and limonite
mineral
Quartz (Iron-Stained / Ferruginous Quartz)
Silicon Dioxide (SiO2)
mineral
Raw Citrine Quartz
Silicon Dioxide (SiO2)
mineral
Amethyst (Super Seven / Melody's Stone Variety)
Silicon Dioxide (SiO2) with trace impurities including Iron
mineral
Aura Quartz (Titanium/Rainbow Quartz)
SiO2 (Silicon Dioxide) with metallic coating
mineral
Emerald in Host Rock
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
mineral
Citrine
SiO2 (Silicon Dioxide)
mineral
Unable to identify - Image contains non-geological items
N/A
Halite
Halite (Sodium Chloride, NaCl)
mineral
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Fluorite
Calcium Fluoride (CaF2)
mineral
Fluorite (Polished Point/Tower)
Calcium Fluoride (CaF2)
mineral
Veined Quartzite / Vein-filled Sedimentary Rock
Siliciclastic rock with iron oxide-filled fractures
sedimentary
Siltstone Pebble
Siltstone (composed of microscopic quartz and clay minerals)
sedimentary
Amygdaloidal Basalt
Amygdaloidal Basalt with Secondary Mineral Amygdules
igneous
Granite
Intrusive Igneous Rock
igneous
Limonite (Yellow Ochre)
Limonite (an amorphous mixture of hydrated iron oxides, primarily FeO(OH)·nH2O)
mineral
Sandstone
Arenite (primarily SiO2 - Silicon Dioxide)
sedimentary
Sandstone
Arenite (primarily composed of SiO2)
sedimentary
Sandstone
Arenite (primarily SiO2 with various cementing agents)
sedimentary
Gneiss
Gneiss
metamorphic
Sandstone
Sedimentary Rock (Quartz arenite)
sedimentary
Red Sandstone
Arenite (primarily Quartz with Hematite cement)
sedimentary
Sandstone
Clastic Sedimentary Rock
sedimentary
Native Copper
Native Copper (Cu)
mineral
Granite
Granite (a broadly defined plutonic igneous rock, often more specifically classified as quartz monzonite or granodiorite based on precise mineral percentages)
igneous
River Rock / Stream Pebble
Fluvial Clast / Rounded Sedimentary Particle
Sedimentary Rock (possibly composed of various minerals)
Quartz-veined Limestone
Sedimentary limestone with hydrothermal quartz/calcite veins (CaCO3 / SiO2)
sedimentary
Milky quartz (rough quartz specimen)
Quartz, silicon dioxide (SiO₂)
mineral
Milky quartz
Quartz (silicon dioxide, SiO₂)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Milky quartz with iron staining
Quartz, silicon dioxide (SiO₂)
mineral
Milky quartz (rough quartz specimen)
Quartz, silicon dioxide (SiO₂)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral