Crushed Limestone
Calcite-rich Sedimentary Rock (CaCO3)
Category
Browse mineral (man made aura treatment) specimens identified by the Rock Identifier community.
Crushed Limestone
Calcite-rich Sedimentary Rock (CaCO3)
Sodalite
Sodalite - Na8(Al6Si6O24)Cl2
Quartz (Rock Crystal) with minor impurities
Quartz (SiO2)
Quartzite
Metamorphic Rock (Mainly SiO2)
Diabase (Greenstone)
Diabase (Dolerite)
Calcite (commonly referred to as Orange Calcite or Honey Calcite given its color)
Calcite
Granite Pebble
Granite (composed primarily of Quartz, Feldspar, and Mica)
Quartz (White/Milky Pebble)
Silicon Dioxide (SiO2)
Coral Rock (Coquina)
Biogenic Limestone (Calcium Carbonate - CaCO3)
Gneiss
Gneiss (a rock type, not a specific mineral with a formula)
Olivine in Basalt matrix
Peridotite (Mg, Fe)2SiO4
Goethite
Goethite (α-FeO(OH))
Quartz
Quartz (SiO₂)
Granite
Granite (composed primarily of Quartz SiO2, Alkali Feldspar KAlSi3O8, and Plagioclase)
Limonite with Hematite
Limonite (FeO(OH)·nH2O) and Hematite (Fe2O3)
Gneiss
Gneiss
Banded Gneiss
Gneiss (typically quartz, feldspar, mica, amphibole composition)
Black Obsidian
Volcanic Glass (predominantly SiO2)
Rhodonite
Rhodonite (MnSiO3)
Basalt
Basalt (Mafic volcanic rock)
Clear Quartz
Silicon Dioxide (SiO2)
Quartz
Quartz (SiO₂)
Granite
Granite
Specular Hematite (Iron Ore)
Iron(III) oxide (Fe2O3)
Granite
Granite (felsic intrusive igneous rock)
Jade (likely Jadeite or Nephrite)
Jadeite (NaAlSi2O6) or Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2)
Schist
N/A (a rock type, not a mineral formula)
Fossiliferous Limestone
Calcareous biomicrite / Calcium Carbonate (CaCO3)
Scoria
Scoria (a vesicular basalt or andesite)
Coquina
Bioclastic Limestone
Limestone
Calcium Carbonate (CaCO3)
Crushed Limestone
Calcium Carbonate (CaCO3)
Sandstone
Sandstone (various mineral compositions)
Banded Gneiss
Gneiss (pronounced 'nice')
Obsidian
Obsidian (volcanic glass)
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
Calligraphy Stone
Mariam Jasper (Fossiliferous Limestone composed of Hematite and Shell remains)
Quartz Druze
Silicon Dioxide (SiO2)
Sandstone (Ferruginous)
Arenite (Fe2O3 rich)
Quartz (likely Milky Quartz)
Quartz (SiO₂ - Silicon Dioxide)
Rutilated Quartz
Silicon Dioxide (SiO2) with Titanium Dioxide (TiO2) inclusions
Rhodonite
Rhodonite; (Mn,Fe,Mg,Ca)SiO3