Quartz
Silicon Dioxide (SiO2)
mineral
Category
Igneous, Sedimentary, Metamorphic
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Quartz (Clear / Rock Crystal)
Silicon Dioxide (SiO2)
Mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Apatite
Fluorapatite, Chlorapatite, and Hydroxylapatite (Ca5(PO4)3(F,Cl,OH))
mineral
Quartz (Druzy)
Silicon Dioxide (SiO2)
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
mineral
Quartz Crystal Fragment
Quartz (Silicon Dioxide, SiO2)
mineral
Orthoclase Feldspar
Potassium aluminum silicate (KAlSi3O8)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Rough Quartz (likely Rose or Smoky variant)
Silicon Dioxide (SiO2)
mineral
White Zircon
Zircon (Zirconium silicate, ZrSiO4)
mineral
Yellow Agate
Agate (Varietal form of Chalcedony/Quartz, SiO2)
mineral
Quartz Vein / Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Milky or Citrine-tinted)
Silicon Dioxide (SiO2)
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Blue Apatite
Apatite (Ca5(PO4)3(F,Cl,OH))
mineral
White Calcite
Calcium Carbonate (CaCO3)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Quartz (Milky or Clear fragment)
Silicon Dioxide (SiO2)
mineral
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
mineral
Quartz (Milky/Crystalline fragment)
Silicon Dioxide (SiO2)
mineral
Pyrite in Quartz
Iron Sulfide (FeS2) on Silicon Dioxide (SiO2)
mineral
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz (Small Pebble)
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon dioxide (SiO2)
Mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz Crystal
Quartz (Silicon Dioxide - SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Gneiss
High-grade Metamorphic Gneiss
metamorphic
Gneiss
Gneiss (Metamorphic Rock)
metamorphic
Gneiss
Foliated Metamorphic Rock
metamorphic
Quartz (Milky/Iron-stained)
Silicon Dioxide (SiO2)
mineral
Gneiss
Metamorphic Gneiss
metamorphic
Pyrite
Iron Sulfide (FeS2)
mineral
Magnetite
Magnetite (Fe3O4)
Mineral
Gneiss
High-grade Metamorphic Gneiss
metamorphic
Quartz
Silicon Dioxide (SiO2)
mineral