Sardonyx
Cryptocrystalline Quartz (SiO2)
mineral
Category
Carved Stone
Browse carved stone specimens identified by the Rock Identifier community.
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Snowflake Obsidian
Volcanic glass (SiO2 - Silicon Dioxide with Cristobalite inclusions)
igneous
Serpentine (Serpentinite)
Antigorite, Lizardite, or Chrysotile; (Mg,Fe)3Si2O5(OH)4
metamorphic
Tiger's Eye (Oeil de Tigre)
Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide inclusions)
metamorphic
Obsidian
Volcanic glass (SiO2 - Silicon Dioxide with impurities)
igneous
Carnelian
Carnelian (SiO2)
mineral
Carnelian
Carnelian (SiO2 - Silicon Dioxide)
mineral
Banded Calcite (often sold as 'Mexican Onyx' or 'Green Onyx')
Calcite (Calcium Carbonate, CaCO3)
sedimentary
Carnelian (a variety of Chalcedony)
Cryptocrystalline Quartz (SiO2) with iron oxide inclusions
Mineral
Tiger's Eye
SiO2 (Pseudomorph of Quartz after Crocidolite)
metamorphic
Nephrite Jade
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)
metamorphic
Sodalite
Sodalite, Na8(Al6Si6O24)Cl2
mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
metamorphic
Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
mineral
Carnelian Agate
Silicon Dioxide (SiO2) - variety of Chalcedony
Mineral
Fluorite (Rainbow/Purple Fluorite)
Calcium Fluoride (CaF2)
mineral
Yellow Chalcedony
Silicon Dioxide (SiO2)
mineral
Banded Calcite (often marketed as Caribbean Calcite)
Calcium Carbonate (CaCO3) + Aragonite
sedimentary
Nephrite Jade
Ca2(Mg, Fe)5Si8O22(OH)2
metamorphic
Blue Tiger's Eye
Silicon Dioxide (SiO2) with Crocidolite inclusions
Mineral (Pseudomorph)
Nephrite Jade
Ca2(Mg, Fe)5Si8O22(OH)2 (Magnesium-rich Tremolite-Actinolite)
metamorphic
Bloodstone
Heliotrope (Cryptocrystalline Quartz, SiO2)
mineral
Howlite
Howlite (Ca2B5SiO9(OH)5)
mineral
White Marble
Recrystallized Calcite (CaCO3)
metamorphic
Sandstone (lithic/quartz variant)
Clastic sedimentary rock (SiO2 predominant)
sedimentary
Sandstone
Arenite (SiO2 based typically)
sedimentary
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Carnelian
Carnelian (microcrystalline variety of Quartz, SiO2)
mineral
Carnelian (a variety of Chalcedony)
Silicon Dioxide (SiO2) with iron oxide impurities
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Carnelian Agate
Silicon Dioxide (SiO2) - variety of Chalcedony
mineral
Agate (Sliced and Carved)
Silicon Dioxide (SiO2) - Banded Chalcedony
mineral
Unakite
Unakite Epidosite (composite of Epidote, Orthoclase, and Quartz)
metamorphic
Granite
Phaneritic plutonic rock (composed mainly of SiO2, Al2O3, K2O, and Na2O)
igneous
Green Aventurine
Quartz with fuchsite inclusions (SiO2)
mineral
Carnelian (Red Chalcedony)
SiO2 (Silicon Dioxide with Hematite impurities)
mineral
Septarian Nodule (Dragon Stone)
Septarian Concretion (CaCO3 with Siderite and Calcite)
sedimentary
Charoite
(K,Sr,Ba,Ca)15-16(Na,Ca)8(Si,Al)24O60(OH,F)4 · nH2O (Hydrated silicate of potassium, calcium, and sodium)
metamorphic
Granite
Granite (Phaneritic intrusive igneous rock)
Igneous
Pink Granite
Phaneritic Felsic Igneous Rock
igneous
Carnelian
Carnelian (variety of Chalcedony, SiO2)
mineral
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
mineral