Honey Calcite
Calcite (Calcium Carbonate, CaCO3)
Category
Browse sedimentary (chemically precipitated mineral) specimens identified by the Rock Identifier community.
Honey Calcite
Calcite (Calcium Carbonate, CaCO3)
Banded Calcite (Green Onyx)
Calcite (CaCO3)
Chert (Yellow Jasper/Flint)
Silicon Dioxide (SiO2)
Chert (Iron-stained)
Microcrystalline Quartz (SiO2)
Hematite
Iron(III) oxide (Fe2O3)
Orange Calcite
Calcium Carbonate (CaCO3)
Limonite (Ironstone)
Hydrated Iron(III) Oxide-hydroxide (FeO(OH)·nH2O)
Druzy Quartz on Limestone
Silicon Dioxide (SiO2) on Calcium Carbonate (CaCO3)
Yellow Ochre / Limonite
Limonite (FeO(OH)·nH2O)
Carnelian
SiO2 (Variety of Chalcedony)
Fossiliferous Limestone
Calcium Carbonate (CaCO3) with Biogenic Inclusions
Chert (Flint)
Chert (SiO2)
Chert (Flint) Nodule
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Banded Iron Formation (Fragment)
Banded Iron Formation (BIF)
Blue Calcite
Calcium Carbonate (CaCO3)
Chert (River Pebble with Liesegang Rings)
Microcrystalline Silicon Dioxide (SiO2)
Septarian Nodule
Septarian Concretion (Composition: Calcite, Aragonite, and Limestone/Clay)
Milky or Iron-Stained Quartz
Quartz (Silicon Dioxide, SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Agate
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Hematite
Iron(III) oxide (Fe2O3)
Chert (Arrowhead artifact)
Chert (Cryptocrystalline Silica, SiO2)
Black Chert River Stone
Cryptocrystalline Quartz (SiO2)
Chert
Microcrystalline Quartz (SiO2)
Chert (Chalcedony)
Silicon Dioxide (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert on Volcanic Host Rock
Sedimentary Chert (SiO2) within Basalt or Andesite
Sandstone (Ferruginous)
Arenite (Fe-rich SiO2)
Limonite (Iron Ore/Bog Iron)
Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)
Aragonite (Onyx Marble)
Calcium Carbonate (CaCO3), Orthorhombic crystal system
Blue Calcite
Calcium Carbonate (CaCO3)
Banded Iron Formation (BIF) / Ironstone Conglomerate
Ironstone (Hematite/Goethite rich sedimentary rock)
Orange Calcite (Polished Sphere)
Calcium Carbonate (CaCO3)
Orange Calcite
Calcite (Calcium Carbonate, CaCO3)
Orange Calcite
Calcite (Calcium Carbonate - CaCO3)
Green Calcite
Calcium Carbonate (CaCO3)
Orange Calcite
Calcium Carbonate (CaCO3)
Yellow Calcite
Calcium Carbonate (CaCO3)
Banded Jasper with Hematite or Quartz
Silicon Dioxide (SiO2) with impurities
Jasper
Silicon Dioxide (SiO2), Microcrystalline Quartz
River Pebble (Greywacke or Chert mix)
Silicon Dioxide (SiO2) with varying mineral impurities
Chert / Chalcedony Nodules
Silicon Dioxide (SiO2) - Microcrystalline Quartz