Quartz (Pale Rose or Milky Variety)
Silicon Dioxide (SiO2)
mineral
Category
Igneous, Sedimentary, Metamorphic, And Mineral
Browse igneous, sedimentary, metamorphic, and mineral specimens identified by the Rock Identifier community.
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Magnetite (Lodestone variety)
Magnetite (Fe3O4)
mineral
Quartz (Milky Variant)
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz Crystal
Silicon Dioxide (SiO2)
mineral
Magnetite / Hematite rich ore
Magnetite (Fe3O4) or Hematite (Fe2O3)
mineral
Quartz or possibly Jasper/Chert. Looks like a tumbled or water-worn stone.
SiO2 (Silicon Dioxide)
Mineral or Sedimentary (if chert)
Clear Quartz (Rock Crystal) Bracelet
Silicon Dioxide (SiO2)
gemstone
Quartz with inclusions
SiO2
mineral
Quartz (White/Milky)
Silicon Dioxide (SiO2)
mineral
Rhodochrosite
Manganese carbonate (MnCO3)
mineral
Quartz (Milk Quartz / Massive Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz (Milky/Clear Fragment)
Silicon Dioxide (SiO2)
mineral
Magnetite / Iron Ore
Magnetite (Fe3O4)
mineral
Clear Quartz / Rock Crystal
Silicon Dioxide (SiO2)
mineral
Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Banded Gneiss
Gneiss (SiO2 enriched metamorphic rock)
metamorphic
Green Calcite
Calcium Carbonate (CaCO3)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite Cube in Matrix
Iron Sulfide (FeS2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
gemstone
Pyrite (Fool's Gold) in Matrix
Iron Disulfide (FeS2)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Blue Apatite
Calcium Phosphate (Ca5(PO4)3(F,Cl,OH))
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Pyrite in Matrix (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Crystalline Silicon Dioxide (SiO2)
gemstone
Red Garnet (likely Almandine or Pyrope)
Garnet group: X3Y2(SiO4)3 (e.g., Almandine: Fe3Al2Si3O12)
mineral
Epidote
Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
metamorphic
Blue Calcite
Calcium Carbonate (CaCO3)
mineral