Quartz (Milky or Common Quartz)
Silicon Dioxide (SiO2)
mineral
Category
Sedimentary (Chemically Precipitated) Or Metamorphic
Browse sedimentary (chemically precipitated) or metamorphic specimens identified by the Rock Identifier community.
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Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Blue Calcite Sphere
Calcium Carbonate (CaCO3)
mineral
Calcite
Calcium Carbonate (CaCO3)
mineral
Chert (with Quartz vein/coating)
Microcrystalline Quartz (SiO2)
sedimentary
Chert with Jasper/Quartz Inclusions
Silicon Dioxide (SiO2)
sedimentary
Chert (Jasper/Quartzite river pebble)
Microcrystalline Silica (SiO2)
sedimentary
Chert (White Variety)
Silicon Dioxide (SiO2)
sedimentary
Chert (Red Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
White Quartz Beads
Silicon Dioxide (SiO2)
mineral
Chalcedony (Agate / Quartz Geode Fragment)
Silicon Dioxide (SiO2)
mineral
Quartzite Pebble (River Rock)
Quartzite (mainly SiO2)
metamorphic
Chert Nodule
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
sedimentary
Banded Iron Formation (BIF)
Magnetite-hematite-chert formation
sedimentary
Tufa
Calcium carbonate (CaCO3) - Porous Limestone
sedimentary
Quartz Geode with Chalcedony
Silicon Dioxide (SiO2)
mineral
Jasper
Silicon Dioxide (SiO2), Microcrystalline Quartz
sedimentary
Green Jasper / Chert Pebbles
Microcrystalline Quartz (SiO2)
sedimentary
Quartz Geode (Unbroken)
Silicon Dioxide (SiO2)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Quartz Geode / Druzy Quartz Node
Silicon Dioxide (SiO2)
sedimentary
Ironstone Nodule
Ironstone (Ferruginous Rock)
sedimentary
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Chert Nodule (with Geode cavity)
Cryptocrystalline Quartz (SiO2)
sedimentary
Yellow Calcite
Calcium Carbonate (CaCO3)
Mineral
Limestone with Calcite Veining
Calcium Carbonate (CaCO3)
sedimentary
Barite (Desert Diamond)
Barite (Barium Sulfate, BaSO4)
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Honey Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Hematite Nodular Iron Ore
Hematite (Fe2O3)
mineral
Quartz (Grain/Fragment)
Silicon Dioxide (SiO2)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
White Quartz Pebble
Crystalline Silicon Dioxide (SiO2)
mineral
Quartz and Mixed Sedimentary Rocks
Silicon Dioxide (SiO2) mixed with various clastic sedimentary lithologies
sedimentary
Quartzite Cobble
Quartzite (chemically SiO2)
metamorphic
Gray Quartzite Pebble
Quartzite (chemically SiO2)
metamorphic
Hematite
Iron(III) oxide (Fe2O3)
mineral
Quartz pebble
Silicon dioxide (SiO2)
sedimentary
Ironstone Concretion (Limonite/Goethite)
Goethite-rich Concretion (FeO(OH))
sedimentary
Jasper (Green)
Silicon dioxide (SiO2)
Mineral/Sedimentary