Granite
Granite (Felsic Plutonic Rock)
igneous
Category
Antropogenic (Man Made Glass Byproduct)
Browse antropogenic (man made glass byproduct) specimens identified by the Rock Identifier community.
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Milky Quartz
SiO2 (Silicon Dioxide)
mineral
Peridot (Olivine)
Olivine ((Mg, Fe)2SiO4)
mineral
Peridot
Olivine (Magnesium Iron Silicate), (Mg, Fe)2SiO4
mineral
Quartzite
Quartzite (SiO2)
metamorphic
Olivine (Peridot)
Olivine (Magnesium Iron Silicate, (Mg,Fe)2SiO4)
mineral
Olivine (Peridot)
Magnesium Iron Silicate ((Mg, Fe)2SiO4)
mineral
Olivine (Peridot when gem-quality)
Olivine Group (Magnesium Iron Silicate, (Mg,Fe)2SiO4)
mineral
Quartzite with Pyrite Inclusions
Metamorphic Quartz-rich Rock
metamorphic
Granite
Phaneritic Felsic Igneous Rock
igneous
Granite
Felsic intrusive igneous rock
igneous
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Pumice
Pumice (Highly vesicular volcanic rock)
igneous
Polished amethyst pyramid
Amethyst, purple quartz (SiO₂)
mineral
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Fluorite and Mineral Collection
Calcium Fluoride (CaF2)
mineral
Quartz Crystal
Silicon Dioxide (SiO2)
mineral
Agate
Silicon dioxide (Chalcedony), SiO2
gemstone
Jasper
Microcrystalline quartz (SiO2)
sedimentary
Granite Pebble
Intrusive Igneous Rock
igneous
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Pink Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz in Host Rock
Silicon Dioxide (SiO2)
mineral
Quartz pebble
Silicon dioxide (SiO2)
mineral
White Quartz
Silicon Dioxide (SiO2)
mineral
Quartzite Pebble
Quartzite (primarily SiO2)
metamorphic
Chalcedony (likely common gray chalcedony)
Microcrystalline quartz, SiO₂
mineral
Weathered sandstone or siltstone
Clastic sedimentary rock, chiefly quartz and feldspar grains cemented by silica, iron oxides, or carbonate
sedimentary
Sandstone
Sedimentary Rock (Quartz arenite)
sedimentary
Sandstone
Clastic sedimentary rock (Quartz arenite)
sedimentary
Sandstone
Sedimentary Clastic Rock
sedimentary
Sandstone
Sedimentary Rock (Quartz arenite / Lithic sandstone)
sedimentary
K-Feldspar / Granite Pegmatite
Potassium Feldspar (Microcline/Orthoclase) with Quartz
igneous
Sandstone
Clastic Sedimentary Rock
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz Boulder
Silicon Dioxide (SiO2)
mineral
Quartz pebble
Silicon dioxide (SiO2)
sedimentary
Sandstone
Clastic sedimentary rock
sedimentary