Serpentine (Serpentinite)
Serpentinite / (Mg,Fe)3Si2O5(OH)4
Category
Browse carved stone specimens identified by the Rock Identifier community.
Serpentine (Serpentinite)
Serpentinite / (Mg,Fe)3Si2O5(OH)4
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
White Quartz Star
Silicon Dioxide (SiO2)
Rhyolite Cross Pendant
Rhyolite (High-silica volcanic rock)
Limestone (Carved Statue)
Calcium Carbonate (CaCO3)
Epidote or Unakite Rock
Epidote-bearing rock / Ca2(Al,Fe)3(SiO4)3(OH)
Unakite
Altered granite (Epidote, Orthoclase Feldspar, and Quartz)
Polished larvikite tower
Larvikite (feldspar-rich monzonite; chiefly alkali feldspar and plagioclase, with pyroxene and other minor minerals)
Marble (Polished Egg)
Metamorphic Limestone (predominantly Calcite, CaCO3)
Tree Agate
Silicon Dioxide (SiO2) with Dendritic Inclusions
Porphyry (Imperial Porphyry / Andesite Porphyry)
Porphyritic Andesite / Porphyritic Dacite
Picasso Stone
Metamorphic Limestone (Marble)
Yellow Calcite (or Orange/Banded Calcite)
Calcium Carbonate (CaCO3)
Carnelian
Silicon dioxide (Chalcedony variety), SiO2
Granodiorite (Riverbed Cobble)
Granodiorite
Carnelian
SiO2 (variety of chalcedony quartz)
Diorite (Porphyritic/Water-worn Pebble)
Diorite
Granite
Granite (composed primarily of Quartz SiO2, Potassium Feldspar KAlSi3O8, and Plagioclase)
Carnelian
SiO2 (Chalcedony variety)
Stromatolite
Biogenic sedimentary rock
Prehnite
Prehnite (Ca2Al(AlSi3O10)(OH)2)
Likely greenstone (metamorphosed mafic rock)
Greenstone; commonly chlorite–actinolite–epidote–albite assemblage
Granite (Micro-specimen)
Plutonic Igneous Rock (primarily Quartz, Feldspar, and Mica)
Granite
Granite (composed primarily of Quartz SiO2, Feldspar (KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8), and Mica)
Graphic Granite
Graphic Granite (Pegmatite)
Granite
Granite (Phaneritic intrusive igneous rock)
Crazy Lace Agate
Chalcedony (SiO2)
Bloodstone
Chalcedony (Variety of Quartz)
Milky Quartz
Silicon Dioxide (SiO2)
Carnelian
Silicon dioxide (chalcedony variety), SiO2
Granodiorite
Granodiorite (intermediate plutonic rock)
Jasper Mushroom Carving
Silicon Dioxide (Microcrystalline Quartz, SiO2)
Sandstone
Clastic Sedimentary Rock
Serpentine
(Mg,Fe)3Si2O5(OH)4
Granodiorite
Granodiorite (NaCa0.5(AlSi3O8)2(Fe,Mg)2)
Jasper
Microcrystalline Quartz (SiO2)
Sandstone
Clastic Sedimentary Rock
Granite
Granite
Black Tourmaline (Schorl) or Black Obsidian
Complex borosilicate (Schorl: NaFe3Al6(BO3)3Si6O18(OH)4) or Volcanic Glass (Obsidian: ~70-75% SiO2)
Granodiorite
Granodiorite
Granodiorite Pebble
Granodiorite
Granodiorite Pebble
Granodiorite