White Quartz
Silicon Dioxide (SiO2)
mineral
Category
Igneous, Sedimentary, Metamorphic, And Mineral
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White Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
White Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz Crystal
Silicon Dioxide (SiO2)
mineral
Apatite
Fluorapatite, Chlorapatite, and Hydroxylapatite (Ca5(PO4)3(F,Cl,OH))
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Gneiss with Quartz Vein
Metamorphic Gneiss
metamorphic
Quartz
Silicon Dioxide (SiO2)
mineral
Epidote
Epidote Group (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
metamorphic
White Quartz
Silicon Dioxide (SiO2)
mineral
Green apatite crystal
Apatite group; likely fluorapatite, Ca₅(PO₄)₃F
mineral
K-Feldspar (Potassium Feldspar)
Orthoclase / Microcline (KAlSi3O8)
mineral
Gneiss or Schist
Gneiss or Mica Schist with Garnet
Metamorphic
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Raw Calcite
Calcium Carbonate (CaCO3)
mineral
White Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Pyrite (FeS₂)
Mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz Mineral
Silicon Dioxide (SiO2)
mineral
Quartz-bearing granite or pegmatite fragment
Likely granitic material composed mainly of quartz (SiO₂), feldspar, and possibly biotite or hornblende
igneous
Specular Hematite
Hematite (Fe2O3)
mineral
Magnetite / Hematite mix (Iron Ore)
Fe3O4 (Magnetite) / Fe2O3 (Hematite)
mineral
Magnetite
Fe3O4 (Iron(II,III) oxide)
mineral
Clear Quartz (Faceted)
SiO2 - Silicon Dioxide
gemstone
Gneiss
Metamorphic Gneiss
metamorphic
Magnetite with Quartz
Magnetite (Fe3O4)
mineral
Magnetite / Hematite (Iron Ore)
Magnetite (Fe3O4) or Hematite (Fe2O3)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon dioxide (SiO2)
mineral
Small weathered mineral/rock fragment
Indeterminate; possibly quartz-bearing feldspathic rock or calcite-rich specimen
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Rainbow Fluorite
Fluorite (Calcium Fluoride, CaF2)
mineral
Quartz
SiO2 (Silicon Dioxide)
Mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Calcite
Calcium Carbonate (CaCO3)
mineral
Small brown mineral fragment
Unidentified; the image lacks enough detail for a reliable species-level identification
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral