Gold
Native Gold (Au)
mineral
Category
Sedimentary (Chemically Precipitated Mineral)
Browse sedimentary (chemically precipitated mineral) specimens identified by the Rock Identifier community.
Learn about Sedimentary (Chemically Precipitated Mineral) in the encyclopedia
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Native Gold (in Jewelry form)
Gold (Au)
Mineral
Gold Nugget
Native Gold (Au)
mineral
Quartz (Iron-Stained or Milky)
Silicon Dioxide (SiO2)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Calcite
Calcium Carbonate (CaCO3)
mineral
Calcite
Calcium Carbonate (CaCO3)
mineral
Calcite
Calcium Carbonate (CaCO3)
mineral
Calcite
Calcium Carbonate (CaCO3)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Iceland Spar (Optical Calcite)
Calcite (CaCO3)
mineral
Fossilized Wood / Petrified Wood
Petrified Wood (Silicified Flora)
fossil
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Jasper and Quartz Pebble
Silicon Dioxide (SiO2) microcrystalline quartz variety
sedimentary
Flint
Microcrystalline Quartz (SiO2)
sedimentary
Flint
SiO2 (Cryptocrystalline Quartz)
sedimentary
Yellow Ochre (Limonite)
Limonite (FeO(OH)wH2O)
sedimentary
Sandstone
Arenite
sedimentary
Chert
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (with Limestone and Iron Oxide staining)
Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (often called Flint)
Chert (Microcrystalline Silicon Dioxide, SiO2)
sedimentary
Quartz on Host Rock
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Sapphirine in Matrix
Sapphirine (Mg,Al)8(Al,Si)6O20
mineral
Aragonite Star Cluster
Aragonite (Calcium Carbonate, CaCO3)
mineral
Chert (Flint)
Silicon dioxide (SiO2)
sedimentary
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
White Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon dioxide (SiO2)
sedimentary
Quartz Pebble
Crystalline Silica (SiO2)
sedimentary
Sulfur on matrix
Native Sulfur (S8)
mineral
Limestone
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Quartz (Milky/Crystalline variety)
Silicon Dioxide (SiO2)
mineral
Bauxite
Bauxite (Principal ore of aluminum; mixture of minerals including Gibbsite Al(OH)3, Boehmite and Diaspore AlO(OH))
sedimentary
Concrete Paver (Artificial Cementitious Rock)
Hydrated Portland Cement Aggregate
Sedimentary (Synthetic)
Flint / Chert
Silicon Dioxide (SiO2)
sedimentary
Banded Iron Formation (BIF)
Banded Iron Formation (Fe2O3 + SiO2)
sedimentary
Banded Agate
Agate (Silicon Dioxide, SiO2)
sedimentary
Brecciated Chert
Sedimentary Chert (SiO2) with Calc-Silicate mineralization
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
mineral