Pyrite (Iron Pyrites)
Iron Sulfide (FeS2)
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.
Learn about Sedimentary (Secondary Classification For A Weathered Mineral Specimen) in the encyclopedia
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Sandstone (Quartz-rich Pebble)
Arenite (primarily SiO2)
sedimentary
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Quartz Geode
Quartz (Silicon Dioxide, SiO2) Geode
sedimentary
Sedimentary rock with quartz veining
Laminated siltstone or mudstone with hydrothermal quartz veins
sedimentary
Optical Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Limonite (Iron Ore/Bog Iron)
Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)
mineral
Chrysocolla and Azurite in Matrix
Hydrated copper phyllosilicate (Chrysocolla - Cu2H2Si2O5(OH)4) and Copper carbonate (Azurite - Cu3(CO3)2(OH)2)
mineral
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Limonite-stained Quartz / Quartzite
Silicon Dioxide (SiO2) with iron hydroxides (FeO(OH)·nH2O)
sedimentary or metamorphic
Yellow Ochre / Limonite
FeO(OH)·nH2O (Hydrated Iron Oxide Mix)
mineral
Chert (Nodule / Geode fragment)
Microcrystalline Quartz (SiO2)
sedimentary
Banded Agate (Agatized Geode Slice)
Silicon Dioxide (SiO₂)
mineral
Turquoise
CuAl6(PO4)4(OH)8·4H2O
mineral
Agate
Chalcendony (Silicon Dioxide, SiO2)
mineral
Turquoise
Turquoise - CuAl6(PO4)4(OH)8·4H2O (Hydrous phosphate of copper and aluminium)
mineral
Chert (Iron-stained)
Microcrystalline Quartz (SiO2)
sedimentary
Chert
Microcrystalline or cryptocrystalline quartz (SiO2)
sedimentary
Jasper
Silicon Dioxide (SiO2) with impurities (mostly Iron Oxides)
Mineral
Sandstone
Arenite (primarily SiO2)
sedimentary
Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Jasper
Cryptocrystalline Quartz (SiO2)
sedimentary
Siltstone with Iron Staining
Siltstone
sedimentary
Amygdaloidal Basalt
Amygdaloidal Mafic Volcanic Rock
igneous
Yellow Chalcedony (Agate Pebble)
Silicon Dioxide (SiO2)
mineral
Limonite (Iron Stone)
Limonite (Hydrated Iron Oxide) - FeO(OH)·nH2O
mineral
Variscite (or potentially a turquoise/variscite matrix cabochon, or an impression jasper)
AlPO4·2H2O (Variscite) or related phosphate/silicate material depending on exact composition
Mineral
Limonite (Ironstone)
Limonite (Hydrated iron(III) oxide-hydroxide, FeO(OH)·nH2O)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Psilomelane (Black Hematite/Manganese Ore)
Barium Manganese Oxide (Formula: BaMn9O18(OH)4)
mineral
Chrysocolla on Quartz with Iron Oxides
Cu2-xAlx(H2-xSi2O5)(OH)4·n(H2O)
mineral
Green Calcite
Calcium Carbonate (CaCO3)
mineral
Cuprite
Cuprite (Copper(I) oxide, Cu2O)
mineral
Chert / Jasper
Silicon Dioxide (SiO2)
sedimentary
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Blue Sapphire (Tumbled/Polished)
Corundum (Al2O3)
mineral
Chert Nodule (Flint)
Silicon Dioxide (SiO2)
sedimentary
Red Jasper
Silicon Dioxide with Hematite (SiO2 + Fe2O3)
sedimentary
Turquoise
Hydrated phosphate of copper and aluminum, CuAl6(PO4)4(OH)8·4H2O
mineral
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
sedimentary
Agate Geode
Silicon Dioxide (SiO2) - Microcrystalline Quartz
mineral