Honey Calcite Geode Segment
Calcite (Calcium Carbonate, CaCO3)
mineral
Category
Sedimentary (Secondary Classification: Cryptocrystalline Quartz)
Browse sedimentary (secondary classification: cryptocrystalline quartz) specimens identified by the Rock Identifier community.
Limonite (with Goethite/Ironstone)
FeO(OH)·nH2O (Hydrated Iron Oxide)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Turquoise
Hydrous phosphate of copper and aluminium - CuAl6(PO4)4(OH)8·4H2O
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Carnelian
Carnelian (SiO2 - Silicon Dioxide with Iron Oxide impurities)
mineral
Jasper River Pebble
Jasper (Silicon Dioxide, SiO2)
sedimentary (cryptocrystalline quartz)
Basalt with Quartz Vein
Basalt (SiO2 vein inclusion)
igneous
Red Jasper (with Quartz Veins)
Jasper (var. chert, SiO₂)
Sedimentary Rock (technically chert, a microcrystalline quartz)
Jasper River Pebble
Silicon Dioxide (SiO2)
sedimentary (microcrystalline quartz)
Mookaite Jasper
Siliceous sedimentary rock (variety of Jasper/Chert)
Sedimentary Rock
Chert (or Flint)
Chert (Sedimentary Cryptocrystalline Sio2)
sedimentary
Amygdaloidal Basalt
Amygdaloidal Basalt (Mafic volcanic rock)
igneous
Yellow Quartz (Iron-Stained Quartz)
Silicon Dioxide (SiO2) with iron oxide inclusions
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Amygdaloidal Basalt
Vesicular Basalt with secondary mineral infilling (commonly Zeolite, Calcite, or Quartz)
igneous
Limonite (Iron Ore)
Goethite and related iron hydroxides (FeO(OH)·nH2O)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Limonite-stained Quartzite
Quartzite with Limonite (FeO(OH)·nH2O) staining
metamorphic
K2 Stone (or K2 Jasper)
Azurite-in-Granite (Potassium Feldspar, Quartz, Plagioclase, Muscovite, and Azurite)
igneous
Gold
Native Gold (Au)
mineral
Amygdaloidal Rhyolite
Rhyolite (felsic volcanic rock) with amygdules
igneous
Azurite and Malachite
Azurite (Cu3(CO3)2(OH)2) and Malachite (Cu2(CO3)(OH)2)
mineral
White Quartz (Milky Quartz Pebble)
Silicon Dioxide (SiO2)
mineral
Brown Jasper (Likely)
Jasper (Cryptocrystalline Silicon Dioxide - SiO2)
Mineral
Quartz / Limestone Gravel
SiO2 (Silicon Dioxide) and CaCO3 (Calcium Carbonate)
igneous and sedimentary mixture
Basalt with Secondary Mineral Inclusions
Amygdaloidal Basalt (Mafic volcanic rock, primarily Augite and Plagioclase)
igneous
Iron-stained Quartz
Silicon Dioxide with Iron Oxide (SiO2 with Limonite/Hematite impurities)
mineral
Banded Jasper (possibly "Picture Jasper")
Jasper (a microcrystalline variety of Quartz / Silicon Dioxide - SiO2)
Sedimentary rock (specifically a chemical sedimentary rock, or a chert if considered purely mineral aggregate)
Red Jasper (possibly)
Jasper (a variety of Chalcedony, SiO2)
Mineral
Jasper and Aquamarine (likely)
Jasper (Cryptocrystalline Quartz (SiO2)), Aquamarine (Beryl (Be3Al2Si6O18))
Sedimentary (Jasper), Mineral (Aquamarine)
Quartz (likely milky/rose quartz variety)
Quartz (SiO2 - Silicon Dioxide)
Mineral
Native Sulfur
Sulfur (S)
mineral
Blue Calcite (commonly sold as Caribbean Calcite)
Calcium Carbonate (CaCO3)
mineral
Satin Spar (Selenite)
Gypsum (CaSO4·2H2O)
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Pink Calcite (Mangano Calcite)
Calcium Carbonate (CaCO3)
mineral
Specular Hematite
Hematite (Fe2O3)
mineral
Limestone with Calcite Veins
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Amygdaloidal Basalt with Quartz/Calcite Inclusions
Amygdaloidal Basalt (SiO2 / CaCO3 inclusions)
igneous
Calcite with iron staining
Calcium Carbonate (CaCO3)
mineral