Yellow Quartz (Citrine or Yellow Chalcedony)
Silicon Dioxide (SiO2)
Category
Browse mineral (treated) specimens identified by the Rock Identifier community.
Yellow Quartz (Citrine or Yellow Chalcedony)
Silicon Dioxide (SiO2)
Black Onyx
Onyx (Silicon Dioxide, SiO2)
Yellow Quartz (Citrine Quartz)
Silicon Dioxide (SiO2)
Emerald and Diamond (Jewelry Setting)
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities) and Carbon (C)
Tanzanite
Blue/Violet Zoisite (Ca2Al3(SiO4)(Si2O7)O(OH))
Howlite
Calcium borosilicate hydroxide (Ca2B5SiO9(OH)5)
Citrine
Silicon Dioxide (SiO2) with iron impurities
Yellow Quartz (Citrine or Iron-Stained Quartz)
Silicon Dioxide (SiO2)
Yellow Quartz (Citrine or Quartz Crystal with Iron Inclusions)
Silicon Dioxide (SiO2)
Blue Sphalerite (likely dyed or treated Druzy Quartz/Agate)
Zinc Sulfide (ZnS) or Silicon Dioxide (SiO2) with trade-name enhancement
White Topaz
Al2SiO4(F,OH)2 (Aluminium Silicate Fluoride Hydroxide)
Citrine
Silicon Dioxide (SiO2) - Macrocrystalline Quartz variety
Dyed Alum or Dyed Quartz (Ornamental Crystal)
Silicon Dioxide (SiO2) or Potassium Alum [KAl(SO4)2·12H2O]
Citrine Quartz (Yellow Quartz)
Silicon Dioxide (SiO2) with iron impurities
Quartz (Citrine or Smoky variant)
Silicon Dioxide (SiO2)
Citrine
SiO2 (Silicon Dioxide)
Citrine Quartz
Silicon Dioxide (SiO2)
Green Quartz (Prasiolite/Adventurine)
Silicon Dioxide (SiO2) with inclusions
Yellow Quartz (Rough)
Silicon Dioxide (SiO2)
Citrine
Silicon Dioxide (SiO2) with iron impurities
Rough Quartz (var. Citrine or Yellow Quartz)
Silicon Dioxide (SiO2)
Bornite
Bornite (Cu5FeS4)
Citrine
Silicon Dioxide (SiO₂)
Citrine
Silicon Dioxide (SiO2)
Citrine
Silicon Dioxide (SiO2) with iron impurities
Black Onyx
Silicon dioxide (SiO2)
Carnelian (Agate)
SiO2 (Silicon Dioxide with Iron Oxide impurities)
Citrine Quartz
Citrine (Silicon Dioxide, SiO2)
Yellow Quartz (Citrine Quartzite)
Silicon Dioxide (SiO2)
Carnelian Agate
Carnelian (Silicon Dioxide: SiO2) with iron oxide impurities
Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
Yellow Quartz (Citrine/Gold Quartz)
Silicon Dioxide (SiO2)
Peacock Ore
Bornite (Cu5FeS4) or iridescent Chalcopyrite (CuFeS2)
Quartz (Citrine or Iron-stained Quartz)
Silicon Dioxide (SiO2)
Citrine
Silicon Dioxide (SiO2) with iron impurities
Citrine Quartz
Silicon Dioxide (SiO2)
Orange Calcite
Calcite (Calcium Carbonate, CaCO3)
Citrine Quartz
Silicon Dioxide (SiO2)
Black Onyx
Silicon Dioxide (SiO2) with cryptocrystalline structure
Citrine Quartz Crystal Cluster
Silicon Dioxide (SiO2) with iron impurities
Citrine (Heat-treated or Natural Quartz)
Silicon Dioxide (SiO2)
Black Onyx
Chalcedony (Silicon Dioxide, SiO2)