Jasper
Silicon Dioxide (Microcrystalline Quartz, $SiO_2$)
sedimentary
Category
Organic Gemstone (Not A Rock Or Mineral)
Browse organic gemstone (not a rock or mineral) specimens identified by the Rock Identifier community.
Learn about Organic Gemstone (Not A Rock Or Mineral) in the encyclopedia
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Fossiliferous Sandstone / Mudstone
Sedimentary Rock (Clastic with Fossiliferous Inclusions)
sedimentary
Fossilized Bone Fragment
Permineralized Vertebrate Fossil (Hydroxyapatite replaced by Minerals)
sedimentary
Chert (Jasper/Agate Peat)
Microcrystalline Quartz (SiO2)
sedimentary
Fossilized Bone
Permineralized Bone (Vertebrate Fossil)
fossil
Coal (Anthracite / Bituminous)
Organic Sedimentary Rock (Carbon-based)
sedimentary
Red Jasper with Quartz
Microcrystalline Quartz (SiO2)
sedimentary
Sandstone (Ferruginous)
Clastic Sedimentary Rock (Sandstone)
sedimentary
Limestone
Calcareous sedimentary rock (CaCO3)
sedimentary
Amber (Tumbled/Polished)
Succinite (Fossilized Tree Resin)
mineraloid
Turquoise, Pearl, and Coral Necklace
CuAl6(PO4)4(OH)8·4H2O (Turquoise) / CaCO3 (Pearl and Coral)
mineral
Petrified Wood
Silicified wood (primarily quartz, SiO2)
fossil
Fossiliferous Limestone / Petrifaction
Sedimentary rock with fossil inclusions / Calcium Carbonate (CaCO3)
fossil
Pearl
Calcium Carbonate (CaCO3) - Aragonite/Calcite organic gemstone
mineral
Amber (Rough)
Succinite (Resinite)
gemstone
Moss Agate and Hematite
Silica (SiO2) with fibrous inclusions of Manganese or Iron; Hematite (Fe2O3)
mineral
Amber
Succiniferous fossil resin (C10H16O)
mineral
Shale
Clastic sedimentary rock (primarily clay and silt minerals)
sedimentary
Chert (includes Flint & Jasper)
Chert (Siliceous sedimentary rock, chemical formula SiO2)
sedimentary
Ironstone Concretion
Ironstone (Siderite/Goethite/Hematite matrix)
sedimentary
Quartz and Limestone Grouping
Silicon Dioxide (SiO2) / Calcium Carbonate (CaCO3)
mineral
Limestone with Calcite Veining
Sedimentary Rock (Calcium Carbonate, CaCO3)
sedimentary
Dendritic Agate (Tree Agate)
Silicon Dioxide (SiO2) with Manganese/Iron oxide inclusions
mineral
Sandstone Concretion
Arenaceous concretion (primarily SiO2 with Fe2O3 staining)
sedimentary
Chert / Chalcedony
Silicon Dioxide (SiO2)
sedimentary
Mookaite Jasper
Silicon Dioxide with Iron Oxide impurities (SiO2)
mineral
Amber
Succinite (fossilized organic resin)
mineral
Amber
Succinates (fossilized tree resin), approximately C10H16O
organic gemstone
Chakra Crystal Bracelet
Mixed Mineral Assortment
gemstone
Glauconite (Greensand)
(K, Na)(Fe3⁰, Al, Mg)₂(Si, Al)₄O₁₀(OH)₂
sedimentary
Shale
Fissile mudstone (primarily clay minerals and silt-sized quartz)
sedimentary
Shale with Coprolite influence
Argillaceous sedimentary rock (Shale/Mudstone)
sedimentary
Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Pyrite in Shale
Iron Sulfide (FeS2) in Sedimentary Matrix
mineral
Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Pearl (Biogenic Mineral)
Calcium Carbonate (primarily Aragonite) with Conchiolin; CaCO3
mineral
Emerald in Matrix
Beryl (Be3Al2Si6O18)
mineral
Chert (Iron-stained)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert with Quartz Veining
Microcrystalline silica (SiO2)
sedimentary
Fossil Shark Tooth
Selachii (fossilized dentition)
fossil
Chert (Flint)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary
Chert / Flint
Silicon Dioxide (SiO2)
sedimentary