Rose Quartz
Silicon Dioxide (Quartz), SiO2
mineral
Category
Igneous, Metamorphic, Sedimentary
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Calcite
Calcium Carbonate (CaCO3)
mineral
Quartz (Smoky Quartz / Calcite)
SiO2 (Silicon Dioxide)
mineral
Tiger's Eye, Hematite, and Black Obsidian Bracelet
SiO2 (Tiger's Eye), Fe2O3 (Hematite), and 70-75% SiO2 (Obsidian)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
mineral
Waterworn Pebble / Quartzite
Metamorphic/Sedimentary rock fragment
sedimentary
Epidote in Matrix (Unakite-like Rock Fragment)
Epidote (Ca2(Al,Fe)3(SiO4)3(OH)) / Altered Metamorphic Pebble
metamorphic
Fluorite, Turquoise, and Calcite set
Calcium Fluoride (CaF2), Hydrous Phosphate of Copper and Aluminum (CuAl6(PO4)4(OH)8·4H2O), Calcium Carbonate (CaCO3)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz with Iron Oxide Weathering
Silicon Dioxide (SiO2) with Goethite/Limonite coatings
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Iron-stained or Ferruginous)
Silicon Dioxide (SiO2)
mineral
Soapstone / Steatite
Steatite (primarily Talc, Mg3Si4O10(OH)2)
metamorphic
Schist
Schist (Crystalline Metamorphic Rock)
metamorphic
Quartz
Silicon Dioxide (SiO₂)
Mineral
Epidote
Epidote (Ca2(Al2,Fe3+)AlSi3O12(OH))
mineral
Greenschist
Greenschist (containing Chlorite, Epidote, and Actinolite)
metamorphic
Serpentine
Serpentine group (Mg,Fe,Ni,Al,Zn,Mn)3(Si,Fe,Al)2O5(OH)4
metamorphic
Unakite
Epidotized Granite
metamorphic
Anyolite (Ruby in Zoisite)
Zoisite with inclusions of Hornblende and Ruby (Ca2Al3(SiO4)3(OH))
metamorphic
Ruby / Red Tourmaline
Corundum (Al2O3) or Elbaite (Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)4)
mineral
K-Feldspar (Potassium Feldspar)
Potassium Feldspar (Microcline or Orthoclase), KAlSi3O8
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
K-Feldspar (Potassium Feldspar)
Potassium Feldspar (KAlSi3O8)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Rough Sapphire (Corundum)
Corundum (Al2O3)
mineral
Quartz (Quartz Pebble)
Silicon Dioxide (SiO2)
mineral
Milky Quartz Pebble
Quartz (Silicon Dioxide - SiO2)
mineral
Quartz and Limestone Grouping
Silicon Dioxide (SiO2) / Calcium Carbonate (CaCO3)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Smoky Quartz (Faceted)
Silicon Dioxide (SiO2)
gemstone
Blue Aura Quartz
Silicon Dioxide (SiO2) with metallic vapor coating
mineral
Citrine
Silicon dioxide (SiO2)
mineral
Ruby (Raw Corundum)
Al2O3 (Aluminum Oxide)
mineral
Citrine
Silicon Dioxide (SiO2)
gemstone
Moonstone (Grey)
Feldspar (variety Orthoclase/Adularia) with the formula (K,Na)AlSi3O8
mineral
Sodalite in Feldspar Matrix
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Citrine
Silicon Dioxide (SiO2)
mineral
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2) with Hematite/Limonite
mineral