Anthracite Coal
Anthracite (Carbon-rich metamorphic rock)
Category
Browse not a rock (animated character) specimens identified by the Rock Identifier community.
Anthracite Coal
Anthracite (Carbon-rich metamorphic rock)
Nephrite Jade
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)
Sunstone
Oligoclase (Plagioclase Feldspar), (Na,Ca)(Si,Al)4O8
Aventurine
Aventurine Quartz (SiO2)
Basalt
Basalt (Mafic volcanic rock)
Carnelian
Chalcedony (Silicon Dioxide, SiO2 with Iron Oxide impurities)
Granite
Granite (Felsic Plutonic Rock)
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Amethyst
SiO2 (Silicon Dioxide with Iron impurities)
Red Jasper
Jasper (Silicon Dioxide with Iron Oxide inclusions, SiO2)
Carnelian
Carnelian (Silicon Dioxide, SiO2)
Yellow Calcite
Calcium Carbonate (CaCO3)
Red Quartzite (likely Purple/Red variety)
Quartzite (SiO2)
Quartz (Raw Rose and Milky varieties)
Silicon Dioxide (SiO2)
Carnelian Agate
Silicon Dioxide (SiO2)
Sandstone (with banding/weathering)
Clastic Sedimentary Rock (primarily SiO2)
Jasper
Silicon dioxide / Chalcedony (SiO2)
Red Quartzite
Quartzite (SiO2)
Chert (Jasper variation)
Silicon Dioxide (SiO2)
Sandstone (with Siltstone/Greywacke variations)
Sedimentary Rock (Clastic)
Obsidian
Volcanic glass (high silica volcanic rock)
Moss Agate
Chalcedony (Silicon Dioxide) with dendritic inclusions (SiO2)
Apache Tear
Obsidian (Hydrated Silica Glass)
Granite Cobble
Phaneritic Felsic Igneous Rock
Schist
Mica Schist
Granite
Phaneritic Felsic Igneous Rock
Basalt
Basalt (Mafic Extrusive Igneous Rock)
Quartzite pebble
Metamorphic rock dominated by SiO2 (Quartz)
Basalt
Mafic Volcanic Basalt (Major minerals: Plagioclase feldspar, Pyroxene; Minor: Olivine, Magnetite)
Green Fluorite
Fluorite (Calcium Fluoride, CaF2)
Vesicular Basalt
Basalt (Mafic Extrusive Volcanic Rock)
Garnet Schist
Almandine Garnet Schist
Bauxite
Bauxite (Al(OH)3, AlO(OH))
Serpentinite
Serpentinite (Mg ₃ Si ₂ O ₅ (OH) ₄)
Red Jasper
Silicon Dioxide (SiO2) - variety Jasper
Banded Agate (Gray Agate)
Silicon Dioxide (SiO2) - Variety of Chalcedony
Quartzite
Recrystallized Quartz (SiO2)
Schist
Mica Schist
Gneiss (Granitic Gneiss)
Gneiss (from German Gneis, related to 'spark')
Granitic Gneiss
Gneiss (Polymetamorphic Granitic Gneiss)
Smoky Quartz
Smoky Quartz (Silicon Dioxide - SiO2)