Granite
Granite (a felsic intrusive igneous rock)
Category
Browse synthetic (man made material mimicking natural stone) specimens identified by the Rock Identifier community.
Granite
Granite (a felsic intrusive igneous rock)
Clear Quartz (beads in a bracelet)
Quartz (SiO2)
Quartzite
Quartzite (primarily SiO2)
Leopard Skin Jasper
Chalcedony (cryptocrystalline quartz) with inclusions
Basalt
Basalt (extrusive igneous rock)
Carnelian
Carnelian (a variety of Chalcedony, SiO2)
Fossil Coral
Coral Limestone (a type of biogenic sedimentary rock)
Soapstone
Steatite (primarily composed of Talc, Mg₃Si₄O₁₀(OH)₂)
Serpentine
Serpentinite (rock), Serpentine group minerals (e.g., Antigorite, Lizardite, Chrysotile)
Chert (Flint)
Chert (predominantly SiO₂ - silicon dioxide)
Black Chert
Chert (microcrystalline quartz)
Jasper (likely a variety of Brecciated Jasper or a patterned variety)
Silicon dioxide (SiO2)
Rock Crystal Quartz
Quartz (SiO₂)
Quartzite
Quartzite (SiO2)
Serpentinite (Serpentine Rock)
Serpentinite is a rock composed of one or more serpentine group minerals, chiefly antigorite, chrysotile, and lizardite, with the general formula (Mg,Fe)3Si2O5(OH)4. Often includes other minerals like magnetite, talc, and chromite.
Marble
Metamorphosed Limestone/Dolomite
Granite
Granite (a plutonic igneous rock composed primarily of quartz, feldspar, and mica)
Dark-colored Igneous Rock (likely Basalt or Diabase)
Basalt (extrusive igneous) or Diabase (intrusive igneous)
Basalt
Basalt (dominated by plagioclase feldspar and pyroxene)
Granite
Granite (Felsic intrusive igneous rock)
Dolomite
Dolomite (CaMg(CO3)2)
Conglomerate
Conglomerate
Clear Quartz (or Rock Crystal)
Quartz (SiO₂)
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
Jade
There are two distinct minerals classified as Jade: Jadeite (Na(Al,Fe3+)Si2O6) and Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2). Based on the image showing translucent, somewhat fibrous material, it is likely Nephrite.
Quartz (chalcedony variety) or Limestone with Quartz Veins
SiO2 (for Quartz/Chalcedony); CaCO3 (for Limestone)
Calcite
Calcite (Mineral, Calcium Carbonate - CaCO3)
Calcite
Calcite (Mineral; CaCO₃)
Fluorite
Fluorite (CaF₂)