Granite
Phaneritic Plutonic Felsic Rock (Granite)
igneous
Category
Mineral_rock
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Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Sandstone
Clastic Sedimentary Rock
sedimentary
Sandstone
Sedimentary Clastic Rock
sedimentary
Mammoth Tooth
Mammuthus primigenius (Tooth fragment)
fossil
Schist (likely Mica Schist)
Mica Schist
metamorphic
Sandstone
Arenite (SiO2 + various cementing minerals)
sedimentary
Quartz Vein Rock
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Pegmatite
Igneous Pegmatite
igneous
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Quartz
Silicon Dioxide (SiO2)
mineral
Red Sandstone
Arenite (with Iron Oxide)
sedimentary
Gneiss (Metamorphic Rock)
Gneiss
metamorphic
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4)
metamorphic
Chalcopyrite
Copper Iron Sulfide (CuFeS2)
mineral
Mixed River Pebbles and Jasper
Siliciclastic sediment and microcrystalline quartz
sedimentary
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Ulexite
NaCaB5O6(OH)6·5H2O
mineral
Quartz Geode/Druzy Quartz
Quartz (SiO₂)
Mineral
Kidney Stone
Nephrolithiasis (Calcium Oxalate, Hydroxyapatite, or Uric Acid)
mineral
Granite
Felsic intrusive igneous rock
igneous
Granite
Felsic intrusive igneous rock
igneous
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Chert (Jasper variety)
Silicon Dioxide (SiO2)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Weathered granite or granitic gneiss
Granite; primarily quartz, feldspar, and mica (possibly metamorphosed to gneiss)
igneous
Azurite
Azurite (Cu3(CO3)2(OH)2)
mineral
Rose Quartz / Iron-stained Quartz
SiO2 (Silicon Dioxide)
mineral
Lapis Lazuli
Na8(Al6Si6O24)S2 (Lazurite is the primary constituent mineral)
metamorphic
Vesicular Basalt
Vesicular Basalt
igneous
Chert (Jasper/Flint Pebble)
Microcrystalline quartz (SiO2)
sedimentary
Turquoise
Turquoise, CuAl6(PO4)4(OH)8·4H2O
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Sandstone (Ferruginous)
Arenite (Fe-rich)
sedimentary
Sandstone (Yellow/Siltstone variant)
Arenite (SiO2 primarily)
sedimentary
Sandstone
Arenite
sedimentary
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Pyrite
Iron Disulfide (FeS2)
mineral
Quartz Crystal
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral