Honey Calcite
Calcium Carbonate (CaCO3)
mineral
Category
Synthetic Polymer (Polylactic Acid)
Browse synthetic polymer (polylactic acid) specimens identified by the Rock Identifier community.
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Limestone
Calcium Carbonate (CaCO3)
sedimentary
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
mineral
Limestone with Calcite Veins
Calcium Carbonate (CaCO3)
sedimentary
Quartzite Pebble
Quartzite (primarily SiO2)
metamorphic
Quartz (Gravel fragment)
Quartz (Silicon Dioxide, SiO2)
mineral
Orange Calcite (often commercially sold as Honey Calcite or Aragonite)
Calcium Carbonate (CaCO3)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Cream Marble (Speckled)
Metamorphosed Limestone (mainly CaCO3)
metamorphic
Yellow Quartzite (Onyx Pebble)
Silicon Dioxide (SiO2) - Quartzite
metamorphic
Marble (White)
Metamorphosed Limestone (mainly CaCO3)
metamorphic
Chert (and Limestone)
Silicon Dioxide (SiO2) in Calcium Carbonate (CaCO3)
sedimentary
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Marble
Recrystallized Calcite / Metamorphosed Limestone (CaCO3)
metamorphic
Quartz pebble
Silicon Dioxide (SiO2)
mineral
Honey Calcite
Calcium Carbonate (CaCO3)
mineral
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Peridot
Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)
Mineral
Quartzite River Rock
Quartzite (SiO2)
metamorphic
Fossiliferous Limestone
Biogenic Limestone (Calcium Carbonate, CaCO3)
sedimentary
Banded Sandstone
Arenite with Liesegang banding (primarily SiO2 with FeO(OH) impurities)
sedimentary
Quartzite
Quartzite (SiO2)
metamorphic
Orange Calcite and White Calcite
Calcium Carbonate (CaCO3)
mineral
Chert (River Stone/Pebble)
Chert (SiO2)
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Honey Calcite
Calcium Carbonate (CaCO3)
mineral
Calcite
Calcium Carbonate (CaCO3)
mineral
Iron Meteorite
Iron-Nickel Meteorite (Siderite)
meteorite
Shale
Shale (clastic sedimentary rock)
sedimentary
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Precious Red Coral
Corallium rubrum (Calcium Carbonate, CaCO3)
gemstone
Quartzite with Chlorite
Metamorphic Quartzite (SiO2) with phyllosilicates
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Pink Quartzite Pebble
Metamorphosed Quartz Sandstone (SiO2 with Iron Oxide impurities)
metamorphic
Orange Calcite (with White Calcite/Quartz matrix)
Calcium Carbonate (CaCO3)
mineral
Green Quartzite
Quartzite (SiO2)
metamorphic
Iron-stained Quartzite
Metamorphosed Quartz (SiO2) with Hematite/Limonite impurities
metamorphic
Quartzite Pebble
Metamorphosed Quartz (SiO2)
metamorphic
Chalk (Sedimentary Limestone)
Calcite (CaCO3)
sedimentary