Citrine Quartz
Silicon Dioxide (SiO2)
mineral
Category
Igneous And Metamorphic
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Milky Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Smoky Quartz (with Iron Inclusions)
Silicon Dioxide (SiO2)
mineral
Blue Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
Black Tourmaline (Schorl)
Schorl (Complex sodium iron aluminum borosilicate)
mineral
Rounded gray pebble, likely quartz-rich stone
Indeterminate; possibly quartzite or a weathered granitic pebble
rock
Smoky Quartz
Silicon Dioxide (SiO2)
gemstone
Quartz Pebble (Iron-Stained Quartz)
Silicon Dioxide (SiO2)
mineral
Milky Quartz with Iron Staining
Quartz (SiO2)
mineral
Strawberry Quartz (Aventurine)
Silicon Dioxide with Hematite/Lepidocrocite inclusions (SiO2)
mineral
Magnetic Sand Grain / Magnetite Pellet
Magnetite (Fe3O4)
mineral
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Milky Quartz
Quartz (SiO2)
Mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Citrine
Silicon Dioxide (SiO2)
mineral
Assorted Decorative Tumbled Stones (Quartz, Sodalite, Aventurine, Calcite)
Mixed Silicates and Carbonates (SiO2, Na8(Al6Si6O24)Cl2, CaCO3)
mineral
Orange Calcite
Calcite (Calcium Carbonate, CaCO3)
mineral
White Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Biotite Mica
Biotite (K(Mg,Fe)3AlSi3O10(OH,F)2)
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Yellow Quartz
Silicon Dioxide (SiO2)
mineral
Citrine Quartz
SiO2 (Silicon Dioxide with Iron impurities)
mineral
Common Opal
SiO2·nH2O (Hydrated Silicon Dioxide)
mineraloid
Quartz (Amethyst variety)
Silicon Dioxide (SiO2)
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Labradorite
(Na, Ca)(Si, Al)4O8
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Emerald
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)
gemstone
Peacock Ore
Bornite (Cu5FeS4)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Blue Zircon
Zircon (Zirconium Silicate), ZrSiO4
gemstone
Pyrite
Iron Sulfide (FeS2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Quartz (SiO₂)
Mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Mixed Mineral Collection
Multi-mineral Assemblage (Quartz, Jasper, Obsidian, Pyrite, etc.)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary