Rhodonite
Rhodonite (MnSiO3)
mineral
Category
Man Made Byproduct (Non Geological)
Browse man made byproduct (non geological) specimens identified by the Rock Identifier community.
Biotite (Black Mica)
Biotite - K(Mg,Fe)3(AlSi3O10)(OH)2
mineral
Lava Rock (Scoria)
Scoria (Vesicular Basalt)
igneous
Fluorite
Calcium Fluoride (CaF2)
mineral
Biotite Mica
Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2)
mineral
Hematite (beads)
Hematite (Fe₂O₃)
Mineral
Basaltic Tuff / Volcanic Breccia
Pyroclastic Breccia / Lithic Tuff
igneous
Peridot in Basalt/Xenolith
Olivine (Mg, Fe)2SiO4 in Vesicular Basalt
igneous
Granite
Granite (Felsic Plutonic Rock)
igneous
Limestone (Weathered)
Calcium Carbonate (CaCO3)
sedimentary
Quartz (in a rock matrix)
Quartz (SiO2)
mineral
Granite
Granite
igneous
Jasper
Jasper (Silica/Silicon Dioxide, SiO2)
sedimentary
Rose Quartz
SiO2 (Silicon Dioxide)
mineral
Amphibolite with Hornblende
Amphibole-rich Metamorphic Rock (Ca2(Mg,Fe)5Si8O22(OH)2)
metamorphic
Fluorite (Green Fluorite)
Fluorite (Calcium Fluoride, CaF2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Jadeite Jade
NaAlSi2O6 (Sodium Aluminum Silicate)
metamorphic
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Satin Spar (Selenite)
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
mineral
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Bornite (Peacock Ore)
Bornite (Cu5FeS4)
mineral
Sandstone (likely Fossiliferous)
Arenite / Sedimentum arenaceum
sedimentary
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Quartz (likely milky/rose quartz variety)
Quartz (SiO2 - Silicon Dioxide)
Mineral
Fluorite (specifically Rainbow Fluorite or Purple Fluorite)
Calcium Fluoride (CaF2)
mineral
Limestone
Calcareous Sedimentary Rock (CaCO3)
sedimentary
Rose Quartz
Silicon Dioxide (SiO2) with trace elements of Titanium, Iron, or Manganese
mineral
Chert (Jasper/Flint variety)
Microcrystalline quartz (SiO2)
sedimentary
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Red Sandstone
Arenite (primarily Quartz and Feldspar with Iron Oxide cement)
sedimentary
Olivine in Basalt (Peridot)
Magnesium Iron Silicate (Mg,Fe)2SiO4 (Mineral) within Basalt (Rock)
igneous
Gneiss
Gneiss (High-grade metamorphic rock typically composed of Quartz, Feldspar, and Mica/Amphibole)
metamorphic
Pink Tourmaline in Quartz Matrix
Elbaite (Na(Li,Al)3Al6(Si6O18)(BO3)3(OH)4) in Quartz (SiO2)
mineral
Hematite with Magnetite
Iron Oxide (Fe2O3)
mineral
Sandstone
Quartz Arenite (a type of sandstone composed of more than 90% quartz)
Sedimentary Rock
Desert Rose
Selenite Rose (Gypsum: CaSO4·2H2O)
mineral
Dendritic Agate
Silicon Dioxide with Manganese or Iron Oxide inclusions (SiO2 + Mn/Fe)
mineral