Polished amber
Amber (fossilized plant resin; chiefly polymerized diterpenoid resin)
gemstone
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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Quartz (Small Fragment)
Silicon Dioxide (SiO2)
mineral
Blue Apatite
Apatite (Ca5(PO4)3(F,Cl,OH))
mineral
Green Tiger's Eye
Quartz (SiO2) with fibrous crocidolite inclusions (dyed)
mineral
Pearl
Biogenic CaCO3 (Aragonite and Calcite)
mineral
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Chalky Limestone
Carbonate sedimentary rock (CaCO3)
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Halite
Sodium Chloride (NaCl)
mineral
Chert (Jasper)
Sedimentary Cryptocrystalline Quartz (SiO2)
sedimentary
Arkosic Sandstone
Arkose
sedimentary
Chert (Jasper/Flint variety)
Microcrystalline quartz (SiO2)
sedimentary
Blue Aventurine
Quartz (SiO2) with inclusions
mineral
Orange calcite
Calcite (CaCO₃)
mineral
Chert / Jasper
Silicon Dioxide (SiO2)
sedimentary
Chert (Jasper variety)
Silicon Dioxide (SiO2)
sedimentary
Pitted Limestone
Calcium Carbonate (CaCO3)
sedimentary
Chert (specifically White Chert or Flint)
Microcrystalline or cryptocrystalline quartz (SiO2)
sedimentary
Chert (Flint nodule)
Chert (SiO2)
sedimentary
Chert / Flint Nodule
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Chert (Nodule)
Chert (Microcrystalline Quartz, SiO2)
sedimentary
Chert (Smooth River Pebble)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Quartz (Milky or Citrine-leaning)
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Goethite / Limonite Concretion
Iron Hydroxide Oxide (FeO(OH))
sedimentary
Pyrite
Iron Sulfide (FeS2)
mineral
Chalcedony
Silicon Dioxide (SiO2)
mineral
Orange Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Chert (Nodular Chert)
Silicon Dioxide (SiO2)
sedimentary
Calcite (or Travertine / Limestone)
Calcium Carbonate (CaCO3)
sedimentary
Marble
Recrystallized Calcite (CaCO3) or Dolomite (CaMg(CO3)2)
metamorphic
Quartz chunk
Silicon dioxide (SiO2)
mineral
Chert Pebble (Jasper variety)
Silicon Dioxide (SiO2)
sedimentary
Azurite-Malachite with Limonite
Cu3(CO3)2(OH)2 (Azurite) / Cu2CO3(OH)2 (Malachite)
mineral
Porphyritic Basalt (Chinese Flower Stone / Chrysanthemum Stone basalt variety)
Porphyritic Basalt containing Plagioclase Feldspar phenocrysts
igneous
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Man-made Dyed Aura Quartz
Silicon Dioxide (SiO2) with metallic coating/dye
mineral
Quartz (River Cobble)
Silicon Dioxide (SiO2)
mineral
Chert (Jasper)
Silicon Dioxide (SiO2)
sedimentary
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Pink Dyed Agate
Silicon Dioxide (SiO2) - Variety Agate
mineral