Pyrite
Iron Disulfide (FeS2)
mineral
Category
Igneous
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Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Pyrite
Iron Disulfide (FeS2)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace impurities of Ti, Mn, or Fe
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Olivine (Peridot when gem-quality)
Magnesium Iron Silicate (Mg,Fe)2SiO4
mineral
Carnelian
Carnelian (Silicate mineral, SiO2)
mineral
Garnet
Garnet Group (e.g., Almandine Fe3Al2(SiO4)3 or Pyrope Mg3Al2(SiO4)3)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Feldspar (Orthoclase)
Orthoclase (KAlSi3O8)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Clear Quartz (Carved Merkaba)
Silicon Dioxide (SiO2)
mineral
Pyrite in Quartz
Silicon Dioxide (SiO2) with Iron Sulfide (FeS2)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Mineral
Feldspar (likely Amazonite or Plagioclase)
Potassium Aluminum Silicate (KAlSi3O8) or Sodium/Calcium Aluminum Silicate
mineral
Sunstone
Oligoclase (Plagioclase Feldspar), (Na,Ca)(Si,Al)4O8
mineral
Blue Quartz (Aventurine)
Silicon Dioxide (SiO2) with inclusions of crocidolite or dumortierite
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Blue Lace Agate
Silicon Dioxide (SiO2) - Variety of Chalcedony
mineral
Epidote in Quartz (Epidosite)
Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
metamorphic
Quartz (Small Pebble)
Silicon Dioxide (SiO2)
mineral
Amethyst (Variety of Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz (Milk Quartz / Massive Quartz)
Silicon Dioxide (SiO2)
mineral
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Geode
Silicon Dioxide (SiO2) - Crystalline Quartz
mineral
Sodalite
Sodalite - Na8(Al6Si6O24)Cl2
mineral
Quartz / Milky Quartz
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Citrine
Crystalline Quartz (SiO2) with iron impurities
mineral
Pyrite in Matrix
Iron Disulfide (FeS2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Crystal Point
Silicon Dioxide (SiO2)
mineral
Sodalite
Na8(Al6Si6O24)Cl2
mineral
Sodalite (in Matrix)
Sodalite Na8(Al6Si6O24)Cl2
mineral
Potassium Feldspar
Orthoclase (KAlSi3O8)
mineral
Amethyst
Amethyst (Silicon Dioxide, SiO2)
mineral
Peach Moonstone
Orthoclase (KAlSi3O8)
mineral
Quartz (Milky or Cloudy)
Silicon Dioxide (SiO2)
mineral
Greenstone
Greenschist
metamorphic