Tree Agate
Dendritic Agate (Silicon Dioxide, SiO2)
mineral
Category
Carved Stone
Browse carved stone specimens identified by the Rock Identifier community.
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Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with inclusions)
metamorphic
Sodalite
Sodalite: Na8(Al6Si6O24)Cl2
mineral
Bloodstone (Heliotrope)
SiO2 (Silicon Dioxide with Iron Oxide inclusions)
sedimentary
Black Onyx
Silicon Dioxide (SiO2)
mineral
Carnelian (Red Agate/Chalcedony)
Cryptocrystalline Quartz (SiO2) with Hematite impurities
mineral
Carnelian (Carnelian Agate)
Carnelian (Silicon Dioxide - SiO2)
mineral
Obsidian
Volcanic Glass (Amorphous Silica)
igneous
Ruby in Zoisite
Anyolite (Calcium Aluminum Silicate with Aluminum Oxide impurities)
metamorphic
Carnelian (Red Chalcedony)
Silicon Dioxide (SiO2)
mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
mineral
Anyolite (Ruby in Zoisite)
Zoisite with inclusions of Hornblende and Ruby (Ca2Al3(SiO4)3(OH))
metamorphic
Diorite
Diorite
igneous
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Nephrite Jade
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)
metamorphic
Carnelian Agate
Chalcedony (SiO2) with iron oxide inclusions
mineral
Mookaite Jasper
Silicified Radiolarite (SiO2 with impurities)
sedimentary
Green Aventurine
Quartz (SiO2) with fuchsite inclusions
mineral
Carnelian Agate
Chalcedony (SiO2 with Iron Oxides)
sedimentary
Red Jasper
Microcrystalline Quartz (Chalcedony), SiO2
sedimentary
Druzy Chalcedony (Agate Geode)
Silica (SiO2) - Cryptocrystalline Quartz with druzy macrocrystalline quartz
mineral
Sandstone (with potential Concretion or Fossil fragment)
Arenite (primarily SiO2)
sedimentary
Soapstone (Steatite)
Steatite (primarily Talc: Mg3Si4O10(OH)2)
metamorphic
Banded Calcite (Onyx Marble)
Calcite (Calcium Carbonate, CaCO3)
sedimentary
Red Jasper
Microcrystalline Quartz (Chalcedony), SiO2 with iron oxide inclusions
sedimentary
Yellow Jasper
Silicon Dioxide (SiO2 with iron oxide inclusions)
sedimentary
Red Jasper
Silicon dioxide (SiO2) with iron oxide inclusions
sedimentary
Red Jasper with Fossils
Silicified Fossiliferous Jasper (Chert variant, SiO2)
sedimentary
Snowflake Obsidian
Obsidian with Spherulitic Cristobalite (SiO2)
igneous
Green Aventurine
Silicon Dioxide (SiO2) with Chromium-rich Fuchsite mica inclusions
metamorphic
Carnelian Agate
Silicon Dioxide (SiO2) - variety of Chalcedony
mineral
Mahogany Obsidian
Volcanic Glass (SiO2 with iron and magnesium oxides)
igneous
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Pink Granite
Granitoid (rich in Potassium Feldspar)
igneous
Carnelian
Silicon Dioxide (Chalcedony variety), SiO2
gemstone
Hematite
Hematite (Fe2O3)
mineral
Carnelian
Quartz (Silicon Dioxide, SiO2)
gemstone
Strawberry Quartz (or Rose Quartz / Cherry Quartz)
Silicon Dioxide (SiO2) with Lepidocrocite, Hematite, or Goethite inclusions
mineral
Larimar
Blue Pectolite (NaCa2Si3O8(OH))
gemstone
Argillite / Mudstone
Argillaceous sedimentary rock
sedimentary
Carnelian
Silicon Dioxide (Variety of Chalcedony, SiO2)
gemstone
Septarian Nodule
Septarian Concretion (Calcite, Aragonite, and Limestone)
sedimentary