Malachite
Copper carbonate hydroxide, Cu2CO3(OH)2
mineral
Category
Sedimentary (Secondary Classification For A Weathered Mineral Specimen)
Browse sedimentary (secondary classification for a weathered mineral specimen) specimens identified by the Rock Identifier community.
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Turquoise and Hematite
Turquoise (CuAl6(PO4)4(OH)8·4H2O) and Hematite (Fe2O3)
mineral
Quartz (Smoky Quartz variant)
Silicon Dioxide (SiO2)
mineral
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Yellow Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Yellow Chert
Sedimentary cryptocrystalline quartz (SiO2)
sedimentary
Granite Pebble
Granite (Phaneritic intrusive igneous rock comprising Quartz, Feldspar, and Mica)
igneous
Chert (Chalcedony/Agate variety)
Silicon dioxide (SiO2)
sedimentary
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Quartz (Small Fragment)
Silicon Dioxide (SiO2)
mineral
Quartz Pebble (with Iron Inclusions)
Silicon Dioxide (SiO2)
mineral
Vesicular Basalt with Siltstone
Mafic Volcanic Rock (Basaltic Composition)
igneous
Jasper Pebble
Silicon dioxide (SiO2) with iron oxide impurities
sedimentary
Prehnite
Ca2Al2Si3O10(OH)2
mineral
Azurite in Matrix
Azurite (Cu3(CO3)2(OH)2) in Rhyolite or Sandstone matrix
mineral
Chert (Jasper/Agate variety)
Microcrystalline Quartz (SiO2)
sedimentary
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Chert (Nodule)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
sedimentary
Glauconitic Sandstone (Greensand pebble)
Glauconitic Quartz Sandstone (K(Fe,Al)2(Si,Al)4O10(OH)2)
sedimentary
Basalt
Basalt (Mafic Extrusive Igneous Rock)
igneous
Chert (Arrowhead variety)
Chert (SiO2)
sedimentary
Sandstone (Quartzose)
Arenite (composed primarily of SiO2)
sedimentary
Limestone (specifically Dolomitic/Crystalline Limestone)
Sedimentary Carbonate Rock (CaCO3 / CaMg(CO3)2)
sedimentary
Basalt with Iron Oxidation (Lattice/Veined)
Mafic Volcanic Rock (principally Plagioclase and Pyroxene)
igneous
Chrysocolla
Hydrated copper silicate (Cu,Al)2H2Si2O5(OH)4·nH2O
mineral
Chert (and Limestone)
Silicon Dioxide (SiO2)
sedimentary
Sapphire Rough (Corundum)
Corundum (Aluminum Oxide, Al2O3)
mineral
Turquoise and Hematite
Turquoise: CuAl6(PO4)4(OH)8·4H2O; Hematite: Fe2O3
mineral
Chert (often called Flint or Jasper)
Silicon Dioxide (SiO2)
sedimentary
Carnelian Agate
Chalcedony (Silicon Dioxide, SiO2)
mineral
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Flint Nodule)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Iron-stained)
Chert (SiO2)
sedimentary
Granitic Quartz (with Feldspar inclusions)
Quartz (SiO2) with Potassium Feldspar (KAlSi3O8)
igneous
Jasper with Hematite inclusions
Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3)
sedimentary
Diorite (with Iron Staining)
Phaneritic Intermediate Igneous Rock
igneous
Gold Ore
Native Gold (Au) in Matrix
mineral
Granite Cobble
Phaneritic Felsic Igneous Rock
igneous
Ferruginous Quartz (Carnelian-tinted Quartz)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
mineral
Green Jasper
Silicon Dioxide (SiO2) with iron silicate inclusions
sedimentary
Sandstone Cobble with Liesegang Rings
Arenite with iron oxide precipitation (SiO2 matrix with Fe2O3 banding)
sedimentary