Milky Quartz
Silicon Dioxide (SiO2)
mineral
Category
Carved Stone
Browse carved stone specimens identified by the Rock Identifier community.
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Diorite
Phaneritic Intrusive Igneous Rock (Intermediate Composition)
igneous
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite (K(Al,Cr)3Si3O10(OH)2)
metamorphic
Crazy Lace Agate
Silicon Dioxide (Chalcedony), SiO2
gemstone
Carnelian
Carnelian (variety of Chalcedony, SiO2)
mineral
Carnelian (Red Chalcedony)
Silicon Dioxide (SiO2)
mineral
Green aventurine (polished stone carving)
Quartz, SiO₂, with green fuchsite mica inclusions (aventurescent quartz)
mineral
Polished jasper or chert carving (tentative)
Microcrystalline quartz, SiO₂, likely jasper/chert; exact identification is uncertain from the image
mineral
Polished Yellow Jaspar
Chalcedony / Quartz (SiO2 with Iron Oxides)
sedimentary
Serpentine
Antigorite, Lizardite, or Chrysotile; (Mg, Fe)3Si2O5(OH)4
metamorphic
Unakite
Unakite (Epidotized Granite)
metamorphic
Greenish rough stone, possibly serpentine or soapstone
Indeterminate from the image; possible serpentinite (serpentine-group minerals) or talc-rich soapstone
metamorphic
Carnelian
Quartz (Variety: Chalcedony, SiO2)
gemstone
Jasper
Silicon Dioxide (Microcrystalline Quartz)
sedimentary
Unakite
Altered granitic rock composed of pink orthoclase feldspar, green epidote, and quartz
metamorphic
Gray-green rough stone, possibly serpentinite
Indeterminate from the photograph; possible serpentinite, a rock composed mainly of serpentine-group minerals
metamorphic
Water-worn greenstone pebble
Greenstone (metamorphosed mafic volcanic rock; commonly chlorite–actinolite–epidote-bearing metabasalt)
metamorphic
Milky quartz
Quartz (silicon dioxide, SiO₂)
mineral
Tumbled amethyst (likely)
Quartz, SiO₂; purple coloration from irradiation and iron impurities
mineral
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)3Si2O5(OH)4
metamorphic
Sandstone
Arenite (primarily SiO2)
sedimentary
Chert (Arrowheads)
Microcrystalline Quartz (SiO2)
sedimentary
Tumbled Agate
Silicon Dioxide, SiO2 (Cryptocrystalline Quartz)
gemstone
Green Aventurine
Aventurine Quartz (SiO2 + Fuchsite mica)
metamorphic
Sandstone
Sedimentary Rock (Quartzose Sandstone)
sedimentary
Sandstone (Quartz-rich)
Arenite (SiO2)
sedimentary
Sandstone
Arenite
sedimentary
Sandstone
Clastic sedimentary rock
sedimentary
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Granite
Granite (Mainly Quartz SiO2 and Feldspar KAlSi3O8)
igneous
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Sandstone (Ferruginous)
Arenite (primarily SiO2 with iron oxide Fe2O3 cement)
sedimentary
Dalmation Jasper (or Dalmation Stone)
Dalmation Stone (composed of Perthite, Quartz, and Arfvedsonite)
igneous
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
mineral
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 cement)
sedimentary
Unakite
Unakite (Epidotized Granite)
metamorphic
Yellow Calcite (Carved Egg)
Calcite (Calcium Carbonate, CaCO3)
mineral
Howlite
Hydrated sodium calcium borosilicate, Ca2B5SiO9(OH)5
mineral
Zebra Jasper
Microcrystalline quartz (silicon dioxide, SiO2) with impurities
metamorphic
Carnelian (Tumbled)
Silicon Dioxide (SiO2)
mineral
Polished serpentinite pebble
Serpentinite; primarily serpentine-group minerals (Mg3Si2O5(OH)4), with possible magnetite and talc
metamorphic
Chalcedony (Common Opal or Agate variant)
Silicon dioxide (SiO2) with trace hydration
mineral