Banded Calcite (known as Mexican Onyx or Calcite Alabaster)
Calcium Carbonate (CaCO3)
mineral
Category
Carved Stone
Browse carved stone specimens identified by the Rock Identifier community.
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Pink Granite
Granite (Alkali-feldspar granite)
igneous
Granite
Granite (Phaneritic igneous rock)
igneous
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
mineral
Black Onyx
Silicon dioxide / Chalcedony (SiO2)
mineral
Granite
Phaneritic intrusive igneous rock (consisting mainly of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Sandstone (Quartzose Sandstone)
Clastic Sedimentary Rock (primarily SiO2 with Fe2O3 staining)
sedimentary
Red Jasper
Silicon Dioxide (SiO2) with Hematite impurities
sedimentary
Green Aventurine
SiO2 (Quartz with Fuchsite inclusions)
mineral
Black Onyx
Silicon Dioxide (SiO2)
mineral
Green Aventurine
Silicon Dioxide with Fuchsite (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
mineral
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Black Onyx
Silicon Dioxide (SiO2) with parallel banding
mineral
Granite
Granite (Phaneritic Igneous Rock)
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
Banded Calcite (often sold as Onyx or Mexican Onyx)
Calcite (CaCO3)
sedimentary
Granite
Felsic intrusive igneous rock
igneous
Granite
Phaneritic plutonic rock (Quartzo-feldspathic)
igneous
Diorite
Phaneritic intermediate plutonic rock
igneous
Granite
Granite (Phaneritic intrusive igneous rock) - Composition: SiO2, Al2O3, K2O, Na2O
igneous
Greenstone (Greenschist)
Greenschist facies rock (containing chlorite, epidote, actinolite)
metamorphic
Chert (Flint)
SiO2 (Microcrystalline Quartz)
sedimentary
Chalcedony
Silicon Dioxide (SiO2)
mineral
Satin Spar (often sold as Selenite)
Gypsum (CaSO4·2H2O)
mineral
Fancy Jasper
Chalcedony (SiO2)
sedimentary
Tiger's Eye
Silicon Dioxide (SiO2) with iron oxide inclusions
Mineral
Serpentine
Serpentinite (Mg,Fe,Ni,Al,Zn)3Si2O5(OH)4
metamorphic
Unakite
Altered Granite (Granitic Metamorphic Rock)
metamorphic
Green Jasper (or Moss Agate / Prase)
Silicon Dioxide (SiO2) with chlorite or amphibole inclusions
mineral
Carnelian
SiO2 (Silicon Dioxide - Chalcedony variant)
mineral
Carnelian (Tumbled)
Silicon Dioxide (SiO2)
mineral
Unakite
Altered Granite (Epidote, Orthoclase Feldspar, Quartz)
metamorphic
Zebra Jasper (Zebra Stone)
Silicon Dioxide (SiO2) with iron oxide and manganese inclusions
sedimentary
Banded Calcite (Mexican Onyx)
Banded Calcite (CaCO3)
sedimentary
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Green Spot Jasper (Kiwi Jasper / Sesame Jasper)
Partially altered granitic rock rich in quartz, microcline feldspar, and tourmaline or amphibole inclusions
metamorphic
Red Jasper
Microcrystalline Quartz (SiO2) with iron oxide inclusions
sedimentary
Granite
Phaneritic Felsic Igneous Rock (primarily Quartz, Feldspar, and Mica)
igneous
Unakite
Altered Granite (Epidotized Granite)
metamorphic
Serpentine
Serpentine group ((Mg, Fe)3Si2O5(OH)4)
metamorphic