Strawberry Quartz
Quartz with Hematite inclusions (SiO2 + Fe2O3)
mineral
Category
Metamorphic And Igneous
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Moonstone
Orthoclase Feldspar ((K,Na)AlSi3O8)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Tumbled Moonstone
Feldspar (Orthoclase/Albite), KAlSi3O8
mineral
Labradorite
Labradorite ((Ca, Na)(Al, Si)4O8)
mineral
Citrine
Silicon dioxide (SiO2)
mineral
Chalcopyrite
Copper Iron Sulfide (CuFeS2)
mineral
Magnetic Sand Grain / Magnetite Pellet
Magnetite (Fe3O4)
mineral
Clear Quartz Crystal
Silicon Dioxide (SiO2)
mineral
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Quartz Crystal Fragment
Silicon Dioxide (SiO2)
mineral
Quartz (Granular)
Silicon Dioxide (SiO2)
mineral
Labradorite
(Ca,Na)(Al,Si)4O8
mineral
Quartz
Quartz (SiO2)
Mineral
White quartz pebble (probable)
Quartz, silicon dioxide (SiO₂)
mineral
Blue Apatite
Calcium phosphate mineral, Ca5(PO4)3(F,Cl,OH)
mineral
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
mineral
Emerald in Matrix (Quartz/Schist)
Beryl (Be₃Al₂Si₆O₁₈) with Chromium/Vanadium impurities
mineral
Greenschist (or Serpentinite with Manganese Dendrites)
Greenschist facies metamorphic rock
metamorphic
Gneiss
Gneiss (Metamorphic Rock)
metamorphic
Gneiss
Gneiss (Metamorphic Rock)
metamorphic
Gneiss
Foliated Metamorphic Rock
metamorphic
Basalt (Weathered River Pebble)
Extrusive Igneous Rock
igneous
Amphibolite
Amphibolite
metamorphic
Muscovite
Muscovite, KAl2(AlSi3O10)(OH)2
mineral
Almandine Garnet
Almandine (Fe3Al2(SiO4)3)
gemstone
Graphite
Graphite (C)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Greenstone / Greenschist
Greenschist (containing Chlorite, Epidote, Actinolite)
metamorphic
Tumbled quartz pebble (probable milky quartz)
Quartz, silicon dioxide (SiO₂)
mineral
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
mineral
Magnetite / Hematite mix (Iron Ore)
Fe3O4 (Magnetite) / Fe2O3 (Hematite)
mineral
Magnetite (Lodestone)
Magnetite (Fe3O4)
mineral
Quartz-rich rock, possibly iron-stained quartz or quartzite
Quartz (SiO₂), potentially quartzite with iron-oxide staining
mineral
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
mineral
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Magnetite
Magnetite (Fe3O4)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Biotite Schist
Biotite Schist (predominantly K(Mg,Fe)3AlSi3O10(OH,F)2)
metamorphic