Red Jasper (Jasper)
Silicon Dioxide (SiO2) with iron oxide inclusions
mineral
Category
Mineral, Often Found In Sedimentary Deposits
Browse mineral, often found in sedimentary deposits specimens identified by the Rock Identifier community.
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Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Sandstone with Quartz Crystal Infill
Quartz-cemented quartz arenite
sedimentary
Quartz
Silicon Dioxide (SiO2)
mineral
Geode
Quartz / Chalcedony nodule
sedimentary
Jasper
Cryptocrystalline quartz (SiO2)
Sedimentary/Mineral
Chert (Yellow Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
mineral
Limonite (often after Pyrite)
Limonite (FeO(OH)·nH2O)
mineral
Barite
Barium Sulfate (BaSO4)
mineral
Satin Spar (Gypsum)
Calcium Sulfate Dihydrate (CaSO4·2H2O)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz Crystal Cluster with Iron Stain
Silicon Dioxide (SiO2)
mineral
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Halite (Rock Salt)
Halite (Sodium Chloride, NaCl)
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Bloodstone
Chalcedony variety Heliotrope (SiO2 with inclusions)
mineral
Yellow Ochre / Limonite
Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)
mineral
Quartz (Common Quartz/Citrine-toned)
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Mixed Tumbled Gemstones (Agate, Aventurine, Pyrite, etc.)
Multiple (principally Silicon Dioxide SiO2 and Iron Disulfide FeS2)
mineral
Jasper
Silicon dioxide (SiO2)
sedimentary
Limonite with Pyrite
Hydrated Iron Oxide Hydroxide, FeO(OH)·nH2O
mineral
Jasper
Microcrystalline quartz (SiO2)
sedimentary
Banded Flint / Chert
Microcrystalline Quartz (SiO2)
sedimentary
Quartz Geode
Silicon Dioxide (SiO2)
sedimentary
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Limonite (Iron Ore)
Limonite (unstructured hydrated iron(III) oxide-hydroxides, often FeO(OH)·nH2O)
mineral
Sandstone (Quartzite-rich)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Sphalerite
Zinc Sulfide (Zn,Fe)S
mineral
Limonite (Ironstone Concretion)
Limonite (FeO(OH)·nH2O)
mineral/sedimentary
Fluorite
Calcium Fluoride (CaF2)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Native Copper (Penny specimen)
Native Copper (Cu)
mineral
Halite (Rock Salt)
Sodium Chloride (NaCl)
mineral
Rhodochrosite
Manganese carbonate (MnCO3)
mineral
Opal
Hydrated Amorphous Silica (SiO2·nH2O)
mineral
Red Jasper
Silicon Dioxide (Microcrystalline Quartz), SiO2
sedimentary
Blue Apatite
Apatite group (Ca5(PO4)3(F,Cl,OH))
mineral
Limonite/Hematite Ironstone
Goethite-rich Ironstone (FeO(OH) · nH2O)
sedimentary
Glauconite
Glauconite (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2
mineral