Honey Calcite
Calcium Carbonate (CaCO3)
Category
Browse mineral on sedimentary specimens identified by the Rock Identifier community.
Honey Calcite
Calcium Carbonate (CaCO3)
Chalcedony (Quartz variety)
Silicon Dioxide (SiO2)
Blue Chalcedony
Silicon Dioxide (SiO2)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Carnelian
Carnelian (Silicon Dioxide - SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Grey Chalcedony (Agate)
Silicon Dioxide (SiO2)
Quartz (Milky/Common Quartz)
Silicon Dioxide (SiO2)
Blue Kyanite
Kyanite (Al2SiO5)
Milky Quartz
Silicon Dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Galena
Lead(II) Sulfide (PbS)
Red Sandstone
Arenite (primarily Quartz SiO2 with Hematite Fe2O3 cement)
Precious Opal
Hydrated amorphous silica (SiO2·nH2O)
Quartz (Common or Milky)
Silicon Dioxide (SiO2)
Jasper (likely a variety of Brecciated Jasper or a patterned variety)
Silicon dioxide (SiO2)
Red Jasper Concretion
Cryptocrystalline Quartz (SiO2)
K2 Jasper (K2 Granite)
Azurite in Granite (Biotite Granite containing Azurite)
Sandstone (Ferruginous)
Arenite (iron-rich)
Quartz Druze (Crystalline Quartz)
Silicon Dioxide (SiO2)
Quartz Geode
Silicon Dioxide (SiO2)
Gneiss
High-grade Metamorphic Gneiss
Banded Slate or Siltstone with Quartz/Calcite Veins
Protolith-derived Siltstone or Slate (varies based on degree of metamorphism)
Geode (Unopened)
Siliceous Geode (SiO2)
Jasper with Chert
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Yellow Jasper
Jasper (Silica-rich Microcrystalline Quartz, SiO2)
Zebra Jasper
Tetragonal Silicon Dioxide (Quartz) with impurities
Red Jasper
Silicon Dioxide (SiO2) with Iron inclusions
Fancy Jasper (Bloodstone variety)
Silicon Dioxide (SiO2) with iron oxide inclusions
Geode Nodules / Chalcedony Geode
Silicon Dioxide (SiO2) - Amorphous to Cryptocrystalline Quartz
Carnelian
Carnelian (SiO2 with Iron Oxide impurities)
Hematite / Goethite (Iron Ore)
Iron Oxide (Fe2O3 / FeO(OH))
Banded Gneiss (River Rock/Pebble)
Gneiss (specifically a banded variety often found as a river rock)
Pyrite
Iron Disulfide (FeS2)
Hematite
Iron (III) Oxide (Fe2O3)
Quartz Druzy Geode Fragment
Silicon Dioxide (SiO2)
Emerald / Green Beryl
Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities
Sandstone (Quartzose)
Arenite (SiO2 principal)
Sandstone (Ferruginous)
Arenite (Fe-rich)
Quartz Conglomerate
Quartz Conglomerate (clastic sedimentary rock)
Sandstone (Quartzose Sandstone)
Clastic Sedimentary Rock (primarily SiO2)