Blue Calcite
Calcium Carbonate (CaCO3)
Category
Browse sedimentary (secondary mineral) within igneous specimens identified by the Rock Identifier community.
Blue Calcite
Calcium Carbonate (CaCO3)
Honey Calcite
Calcium Carbonate (CaCO3)
Blue Calcite
Calcium Carbonate (CaCO3)
Quartz (Small Pebble)
Silicon Dioxide (SiO2)
Native Gold (in the form of jewelry)
Gold (Au)
Basalt with Iron Oxidation (Lattice/Veined)
Mafic Volcanic Rock (principally Plagioclase and Pyroxene)
Amygdaloidal Basalt
Amygdaloidal Basalt containing Zeolite and Calcite inclusions
Quartz Geode
Silicon Dioxide (SiO2)
Quartz Geode
Silicon Dioxide (SiO2) in Geode form
Prehnite
Prehnite (Ca2Al2Si3O10(OH)2)
Porphyritic Igneous Rock with Iron Oxide Weathering
Weathered Porphyry (containing Quartz, Feldspar, Amphibole/Biotite, and Hematite/Limonite)
Turquoise
CuAl6(PO4)4(OH)8·4H2O
Turquoise
Turquoise - CuAl6(PO4)4(OH)8·4H2O
Turquoise
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
Turquoise
CuAl6(PO4)4(OH)8·4H2O (Hydrous phosphate of copper and aluminium)
Turquoise
CuAl6(PO4)4(OH)8·4H2O
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Chert (Vuggy Chert)
Silicon Dioxide (SiO2)
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Turquoise
Turquoise - CuAl6(PO4)4(OH)8·4H2O
Ironstone Concretion / Goethite-Hematite Nodule
Goethite/Hematite (α-FeO(OH) / Fe2O3)
Yellow Jasper / Chalcedony
Silicon Dioxide (SiO2) with iron inclusions
Quartz Geode (Cracked Open Fragment)
Silicon Dioxide (SiO2)
Turquoise
Hydrated phosphate of copper and aluminium - CuAl6(PO4)4(OH)8·4H2O
Amygdaloidal Basalt
Amygdaloidal Basalt (Mafic Volcanic Rock)
Clear Quartz
Silicon dioxide (SiO2)
Prehnite
Prehnite (Ca2Al2Si3O10(OH)2)
Geode Nodules / Keokuk Geode
Quartz / Chalcedony Geode (SiO2)
Iron-Stained Quartz Pebble
Silicon Dioxide (SiO2) with Iron Oxide (Limonite/Goethite) inclusions
Iron-stained Quartz
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Citrine Quartz Geode
Silicon Dioxide (SiO2) with iron impurities
Blue Banded Agate (Dyed)
Silicon Dioxide (SiO2) - variety of Chalcedony
Gold
Native Gold (Au)
Turquoise
Hydrous phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
Turquoise
Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]
Turquoise
Hydrated copper and aluminum phosphate (CuAl6(PO4)4(OH)8·4H2O)
Turquoise (Rough Specimens)
Hydrous phosphate of copper and aluminium - CuAl6(PO4)4(OH)8·4H2O
Yellow Calcite
Calcium Carbonate (CaCO3)
Citrine and Quartz
Silicon Dioxide (SiO2)
Yellow Quartz (Citrine/Yellow Jasper)
Silicon Dioxide (SiO2)
Calcite
Calcium Carbonate (CaCO3)