Green Banded Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Category
Carved Stone
Browse carved stone specimens identified by the Rock Identifier community.
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Carnelian Agate
Silicon Dioxide (SiO2) - Variety: Chalcedony
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Granite
Granite (Mainly Quartz, Alkali Feldspar, and Plagioclase)
igneous
Labradorite (Gray Feldspar)
(Ca, Na)(Al, Si)4O8
mineral
Granite
Intrusive Igneous Rock (composed of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Polished rose quartz bowl
Quartz, silicon dioxide (SiO₂), likely rose quartz
mineral
Kambaba Jasper (Crocodile Jasper)
Fossilized Stromatolite (Cyanobacteria microfossils in silica Matrix)
sedimentary
Granite
Granite (Phaneritic intrusive igneous rock) - Composition: SiO2, Al2O3, K2O, Na2O
igneous
Red Sandstone
Arenite (with Iron Oxide / Hematite), Formula: SiO2 (Quartz) + Fe2O3 (Hematite coating)
sedimentary
Granite
Phaneritic plutonic rock composed of Quartz, Feldspar, and Mica
igneous
Pink Granite (with Potassic Feldspar and Quartz)
Felsic Intrusive Igneous Rock (Granite)
igneous
Sandstone
Clastic Sedimentary Rock
sedimentary
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Snowflake Obsidian
Volcanic Glass with Cristobalite Inclusions (SiO2)
igneous
Serpentine
Serpentine Group (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4
metamorphic
Chert (Jasper)
Microcrystalline Quartz (SiO2) with Iron Oxide inclusions
sedimentary
Agate
SiO2 (Silicon Dioxide - Chalcedony)
Mineral / Sedimentary
Lavender Chalcedony
Silicon Dioxide (SiO2)
mineral
Banded Iron Formation (BIF) / Banded Sandstone Nodule
Hematite-rich Sandstone / Ferruginous Chert
sedimentary
Hematite
Hematite (Fe2O3)
mineral
Satin Spar Selenite
Gypsum (CaSO4·2H2O)
mineral
Unakite
Epidotized Granite
metamorphic
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Green Jasper
Silicon Dioxide (SiO2) with iron silicate inclusions
sedimentary
Septarian Nodule
Septarian Concretion (Calcite, Aragonite, Limestone)
sedimentary
Jasper
Silicon Dioxide (SiO2) microcrystalline quartz
sedimentary
Prehnite
Ca2Al(AlSi3O10)(OH)2
mineral
Sodalite
Na4Al3(SiO4)3Cl (Sodium Aluminum Silicate Chloride)
mineral
Carnelian Agate
Silicon dioxide (Chalcedony), SiO2
mineral
Sodalite
Sodalite, Na8(Al6Si6O24)Cl2
mineral
Amazonite
Microcline feldspar (KAlSi3O8)
mineral
Granite
Intrusive Felsic Igneous Rock
igneous
Yellow Jasper
Silicon Dioxide (SiO2) with iron hydroxides (Goethite or Limonite)
sedimentary
Granite
Phaneritic Felsic Igneous Rock (primarily Quartz, Feldspar, and Mica)
igneous
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Carnelian Agate
Cryptocrystalline Quartz (SiO2) with Iron Oxide impurities
mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
mineral
Diorite (Salt and Pepper Rock)
Diorite
igneous
Granite
Granite (Phaneritic Igneous Rock)
igneous
Sandstone
Arenite
sedimentary
Greenstone / serpentinite carving
Serpentinite, chiefly serpentine-group minerals (antigorite, lizardite, or chrysotile); exact identification requires testing
metamorphic