Chrysocolla
Hydrated copper phyllosilicate, (Cu,Al)2H2Si2O5(OH)4·nH2O
mineral
Category
Mineral_rock
Browse mineral_rock specimens identified by the Rock Identifier community.
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Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
mineral
Iron-stained Quartz
Silicon Dioxide (SiO2) with Iron Oxide (Limonite/Goethite) inclusions
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Azurite Malachite
Azurite (Cu3(CO3)2(OH)2) and Malachite (Cu2CO3(OH)2)
mineral
Granite Pebble
Intrusive Igneous Rock (Granite)
igneous
Granite
Intrusive igneous felsic rock
igneous
Diorite
Phaneritic Intermediate Igneous Rock
igneous
Granite
Granite (Felsic Plutonic Rock)
igneous
Fluorite (Fluorescent)
Calcium Fluoride (CaF2)
mineral
Rhodonite
(Mn,Fe,Mg,Ca)SiO3
mineral
Malachite
Copper carbonate hydroxide, Cu2CO3(OH)2
mineral
Turquoise
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
mineral
Quartz-rich pegmatite fragment
Granite-family pegmatite; chiefly quartz (SiO₂), feldspar, and black mica (biotite)
igneous
Blue Apatite
Apatite (Ca5(PO4)3(F,Cl,OH))
mineral
Tumbled quartz pebble
Quartz (SiO₂), likely milky or fractured rock crystal
mineral
Tumbled milky quartz
Quartz, silicon dioxide (SiO₂)
mineral
Limonite / Goethite (Ironstone)
Hydrated Iron(III) Oxide-Hydroxide FeO(OH)wnH2O
sedimentary
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) within Metasedimentary or Igneous Matrix
metamorphic
Dinosaur Bone
Agatized Dinosaur Bone
sedimentary/fossil
Veined Basalt River Stone
Basalt with Calcite or Quartz veining
igneous
Sandstone
Arenite (lithic or quartz sandstone)
sedimentary
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Bauxite
Aluminum ore (mixture of gibbsite Al(OH)3, boehmite γ-AlO(OH), and diaspore α-AlO(OH))
sedimentary
Fluorite (Green)
Calcium Fluoride (CaF2)
mineral
Granite (Gneissic / Weathered Pebble)
Felsic intrusive igneous rock (Granite)
igneous
Banded Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Pyrite
Iron Sulfide (FeS2)
mineral
Sandstone (Banded)
Clastic Sedimentary Rock: Arenite
sedimentary
Sandstone (Banded)
Arenite
sedimentary
Dark weathered igneous rock, likely basalt
Basalt; chiefly plagioclase feldspar, pyroxene, and commonly olivine or iron oxides
igneous
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) in Altered Host Rock
mineral
Epidote
Calcium aluminum iron silicate (Ca2(Al, Fe)3(SiO4)3(OH))
mineral
Limonite (Iron Ore)
Limonite; FeO(OH)·nH2O
mineral
Sandstone (with Iron Staining)
Clastic sedimentary rock (SiO2 with Fe2O3 oxides)
sedimentary
River Pebble (Siltstone / Fine-grained Sandstone)
Sedimentary Pebble (Siliclastic)
sedimentary
Sandstone with Quartz/Calcite druse
Arenite with druse (SiO2 or CaCO3)
sedimentary
Limonite Concretion
FeO(OH)qnH2O (Hydrated iron(III) oxide-hydroxide mixture)
sedimentary
Talc Schist / Soapstone
Talc (Mg3Si4O10(OH)2)
metamorphic
Desert Rose (Sand Barite/Gypsum Rose)
Barium Sulfate (BaSO4) or Hydrated Calcium Sulfate (CaSO4·2H2O)
mineral
Blue Quartzite (Dyed)
Silicon Dioxide (SiO2) with inclusions
metamorphic