Carved Gemstone Mushroom
Quartz / Feldspar composite (Carved lapidary art)
gemstone
Category
Man Made Material (Simulated Mineral)
Browse man made material (simulated mineral) specimens identified by the Rock Identifier community.
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Quartz and Slate Pebbles
Silicon Dioxide (SiO2) and Metamorphosed Shale/Mudstone
mineral
Amber
Succinite (C10H16O)
mineral
Veined Pebble (Septarian or Quartz-Veined Chert/Basalt)
Silicon Dioxide (SiO2) veins in matrix
sedimentary
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Ocean Jasper or Orbicular Jasper
SiO2
mineral
Rose quartz beads
Quartz, silicon dioxide (SiO₂), pink variety
mineral
Rose Quartz with Schist Matrix
Silicon Dioxide (SiO2) with Mica-Schist
mineral
Granite
Granite
Igneous
Sandstone (likely Graywacke or Arkose variant)
Clastic Sedimentary Rock (SiO2 with assorted lithic fragments)
sedimentary
Sandstone
Arenite
sedimentary
Polished ocean jasper (orbicular jasper)
Microcrystalline quartz/chalcedony (SiO₂) with iron oxides and assorted alteration minerals
mineral
Tumbled jasper or iron-rich chalcedony
Microcrystalline quartz (SiO₂), likely colored by iron oxides
mineral
Sandstone (Quartzite-rich Cobble)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone
Arenite (SiO2 predominantly)
sedimentary
Sandstone
Arenite (primarily Quartz and Feldspar)
sedimentary
Sandstone (Ferruginous)
Sandstone (clastic sedimentary rock, mainly SiO2 with iron oxide cement)
sedimentary
Sandstone (Quartzose Sandstone)
Clastic Sedimentary Rock - Arenite
sedimentary
Vesicular basalt
Basalt, typically composed of plagioclase feldspar, pyroxene, and minor olivine or iron oxides
igneous
Quartz-rich rock with chlorite/epidote vein
Milky quartz with green chlorite or epidote; exact identification requires testing
metamorphic
Quartz pebble
Silicon dioxide (SiO2)
sedimentary
Quartz pebble
Silicon dioxide (SiO2)
mineral
Quartz
Silicon dioxide (SiO2)
mineral
Polished/tumbled jasper, likely ocean jasper or brecciated jasper
Jasper: microcrystalline quartz (SiO₂) with iron oxides and other silicate impurities
mineral
Amethyst cluster
Quartz, silicon dioxide (SiO₂), purple variety colored mainly by iron impurities and irradiation
mineral
Amethyst geode fragment
Quartz, SiO₂; purple color from irradiation-related iron impurities
mineral
Diamond
Diamond (C)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Chalcedony on Matrix
Silicon Dioxide (SiO2)
mineral
Cubic Zirconia
Cubic Zirconium Dioxide (ZrO2)
mineral
Chondrite Meteorite
Ordinary Chondrite (S-type Asteroid fragment)
mineral
Pyrite Geode
Iron Disulfide (FeS2)
mineral
Tumbled carnelian
Carnelian, a red-orange variety of chalcedony (microcrystalline quartz, SiO₂)
gemstone
Red Sandstone
Sedimentary Clastic Rock (Quartz Arenite)
sedimentary
Quartzite and Sandstone Pebbles
Silicon dioxide (SiO2)
metamorphic and sedimentary
Granite Boulder
Felsic Intrusive Igneous Rock
igneous
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Diamond (in Jewelry Setting)
Carbon (C) - Isometric-Hexoctahedral
mineral
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Granite Cobble / Gneiss (River Rock)
Granitic Gneiss / Felsic Igneous Rock
igneous
Garnet Beads
Garnet Group (complex nesosilicates, e.g., Almandine Fe3Al2(SiO4)3)
Mineral
Sandstone
Clastic sedimentary rock (Quartz arenite / Arkose)
sedimentary