Limestone Pebble
Sedimentary Calcium Carbonate (CaCO3)
Category
Browse antropogenic (man made industrial byproduct) specimens identified by the Rock Identifier community.
Limestone Pebble
Sedimentary Calcium Carbonate (CaCO3)
Clear Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2)
Diamond
Diamond (C)
Red Jasper
Silicon Dioxide (SiO2) with Hematite (Fe2O3) inclusions
Sandstone
Arenite (composed primarily of SiO2)
Sandstone
Arenite
Limestone
Calcium Carbonate (CaCO3)
Sandstone (likely Graywacke or Arkosic varieties)
Arenite (composed primarily of SiO2)
Quartzite
Quartzite (SiO2)
Diamond
Diamond (C)
Larimar
Pectolite (a blue variety of Pectolite)
Granite
Granite (Felsic Plutonic Rock)
Limestone (with potential fossil inclusions)
Calcium Carbonate (CaCO3)
Granite
Phaneritic Plutonic Felsic Rock (SiO2 > 69%)
Limestone (Grey and White specimens)
Calcium Carbonate (CaCO3)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Druzy Quartz)
Silicon Dioxide (SiO2)
Blue Kyanite
Kyanite (Al2SiO5)
Green Druzy Quartz (Prasiolite)
Silicon Dioxide (SiO2) with inclusions (typically Chlorite or Actinolite)
Quartz (Iron-Stained Quartz Pebble)
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide with traces of Titanium, Iron, or Manganese (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Fluorite (Purple Fluorite in Matrix)
Fluorite (Calcium Fluoride, CaF2)
Malachite
Malachite (Cu2CO3(OH)2)
Sandstone
Arenite (SiO2 based with various mineral cements)
Chert (Chalk-associated Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Granite
Felsic Intrusive Igneous Rock
Granite
Granite (a common term for a felsic intrusive igneous rock)
Diamond
Diamond (a metastable allotrope of carbon, C)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Green Apophyllite and Stilbite on Quartz Cluster
Apophyllite-(K) (KCa4(Si8O20)(F,OH)·8H2O), Stilbite-Ca (NaCa4(Si27Al9)O72·28H2O), Quartz (SiO2)
Sandstone (likely Arkosic)
Clastic Sedimentary Rock
Sandstone
Arenite (primarily SiO2 with trace Fe2O3)
Sandstone (Ferruginous)
Arenite (Fe2O3 stained)
Limestone
CaCO3 (Mainly Calcite or Aragonite)
Limestone (Micrite/Chalky variety)
Calcium Carbonate (CaCO3)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Quartzite
Quartzite (primarily SiO2)
Sandstone
Sandstone (clastic sedimentary rock)
Quartz (likely) or a Quartzite Pebble
Silicon dioxide (SiO2) for quartz. If it's quartzite, it's a metamorphic rock primarily composed of quartz.
Pink Granite (Fragment)
Pink Granite (dominated by Potassium Feldspar: KAlSi3O8)