Bumble Bee Jasper
Volcanic Tuff (mixture of SiO2, CaCo3, S, and As2S3)
igneous
Category
Igneous And Sedimentary Mixture
Browse igneous and sedimentary mixture specimens identified by the Rock Identifier community.
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Limonite (Iron Ore)
FeO(OH)·nH2O (Hydrous ferric oxide)
mineral
Mixed river gravel (alluvial conglomeratic sediment)
Polymictic alluvium; composition includes quartz, feldspar, chert, granite, basalt, and metamorphic rock fragments
sedimentary
Conglomerate (or Breccia / Porphyry)
Clastic Sedimentary Rock (Conglomerate / Sandstone)
sedimentary
Quartz-veined Greywacke
Lithic Wacke with Siliceous Veins
sedimentary
Greywacke with Quartz Veins
Lithic Sandstone (Greywacke) with SiO2 inclusions
sedimentary
Bog Iron / Limonite Concretion
Goethite/Limonite mixture (FeO(OH)·nH2O)
sedimentary
Carnelian (Carnelian Agate)
Carnelian (Silicon Dioxide - SiO2)
mineral
Dyed Agate
Chalcedony (SiO2)
gemstone
Carnelian Agate
Chalcedony (SiO2) with iron oxide inclusions
mineral
Chalcedony
Silicon dioxide (SiO2) - Microcrystalline quartz
mineral
Epidote
Epidote (Ca2(Al2,Fe3+)3(SiO4)3(OH))
metamorphic
Graphic Granite
Pegmatitic Granite (Quartz and Microcline K-Feldspar mixture)
igneous
Multi-gemstone Quartz and Fluorite Bracelet
Silicon Dioxide (SiO2) and Calcium Fluoride (CaF2)
mineral
Quartz (Druzy)
Silicon Dioxide (SiO2)
mineral
Bornite (Peacock Ore) / Acid-treated Chalcopyrite
Bornite (Cu5FeS4) or Chalcopyrite (CuFeS2)
mineral
Zebra Jasper (Zebra Stone)
Silicon Dioxide (SiO2) with iron oxide and manganese inclusions
sedimentary
Pyrite in Matrix
Iron Sulfide (FeS2)
mineral
Dyed Agate
Silicon Dioxide (Chalcedony with artificial colorant), SiO2
gemstone
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Chalcedony (Agate/Carnelian variant)
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Pyrite (FeS2)
mineral
Chalcedony (Agate/Carnelian)
Silicon Dioxide (SiO2)
mineral
Limonite and Goethite (Ironstone)
Hydrous Iron Oxide Mixture (FeO(OH)·nH2O)
sedimentary
Chalcedony
Chalcedony (SiO2)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Bloodstone (Heliotrope)
Silicon Dioxide (SiO2) with Iron Oxide / Chlorite inclusions
mineral
Epidote
Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
mineral
Red Agate
Chalcedony (SiO2)
gemstone
Yellow Chalcedony (Agate Pebble)
Silicon Dioxide (SiO2)
mineral
Auriferous Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
River Stone (Quartzite/Chert mixture)
Microcrystalline Quartz (SiO2)
sedimentary
Quartz (Citrine or Iron-Stained variety)
Silicon Dioxide (SiO2)
mineral
Chalcedony (Common Agate)
Silicon Dioxide (SiO2)
mineral
Nephrite Jade
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)
metamorphic
Pyrite
Iron Sulfide (FeS2)
mineral
Quartz (clear quartz/crystal quartz)
Quartz, silicon dioxide (SiO₂), trigonal crystal system
mineral
Limonite (Iron Ore)
Limonite (mixture of hydrated iron(III) oxide-hydroxides)
Mineral
Agate
Silicon Dioxide (Chalcedony), SiO2
sedimentary
Asphalt (Bituminous Concrete)
Bituminous mix / Anthropogenic conglomerate
man-made composite (lithified equivalent of sedimentary)
Indian Agate
Silicon Dioxide (SiO2) - Microcrystalline Quartz
mineral
Septarian Nodule
Septarian Nodule (Mixture of Calcite, Aragonite, and Limestone/Clay)
sedimentary