Mixed Quartz and River Pebbles (Stone Collection)
Mixed assortment containing mainly Silicon Dioxide (SiO2)
Category
Browse igneous, sedimentary, metamorphic, and mineral specimens identified by the Rock Identifier community.
Mixed Quartz and River Pebbles (Stone Collection)
Mixed assortment containing mainly Silicon Dioxide (SiO2)
Mixed Tumbled Gemstones and River Rocks
Mixed Decorative Stones (predominantly Silicon Dioxide - SiO2 variants)
Wishing Rock (Quartz Vein in Host Rock)
Silicon dioxide (SiO2) vein in various host rocks
Blue Apatite
Apatite (Group), Ca5(PO4)3(F,Cl,OH)
Blue Apatite
Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Magnetite
Magnetite (Fe3O4)
Magnetite
Iron(II,III) oxide (Fe3O4)
Milky Quartz
Quartz (SiO2)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Quartz
Silicon Dioxide (SiO2)
Zoisite with Ruby (Anyolite)
Zoisite – Ca2Al3(SiO4)3(OH) with inclusions of Ruby (Al2O3:Cr)
Quartz (Smoky/Grey variety)
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Blue Calcite
Calcium Carbonate (CaCO3)
Pyrite
Iron Sulfide (FeS2)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Milky Quartz
Silicon Dioxide (SiO2)
Magnetite (Small Granule)
Magnetite (Fe3O4)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Magnetite Orthorthotropic Rock
Magnetite (Fe3O4)
Magnetic Sand Grain / Magnetite Pellet
Magnetite (Fe3O4)
Pyrite in Matrix (Fool's Gold)
Iron Sulfide (FeS2)
Milky Quartz
Silicon Dioxide (SiO2)
Magnetite (Iron Ore)
Magnetite (Fe3O4)
Magnetite (Iron Ore)
Magnetite (Fe3O4)
Yellow Calcite
Calcium Carbonate (CaCO3)
Magnetite / Iron Ore
Magnetite (Fe3O4)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Milky Quartz
Silicon Dioxide (SiO2)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Quartz (Small Fragment)
Silicon Dioxide (SiO2)
Clear/White Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Magnetite Sand (Black Sand)
Magnetite (Fe3O4)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Magnetite
Magnetite (Iron(II,III) oxide, Fe3O4)
Yellow Calcite
Calcite (Calcium Carbonate, CaCO3)
Blue Apatite
Fluoroapatite (Ca5(PO4)3F)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Quartz (Milky/Crystalline fragment)
Silicon Dioxide (SiO2)