Smoky Quartz
Silicon Dioxide (SiO2)
Category
Browse organic (if resin) or synthetic (if glass); simulating sedimentary or metamorphic (for natural stones) specimens identified by the Rock Identifier community.
Smoky Quartz
Silicon Dioxide (SiO2)
Citrine Quartz (likely heat-treated)
Silicon Dioxide (SiO2)
Yellow-orange faceted gemstone, likely citrine or yellow topaz
Citrine: quartz, SiO₂; yellow topaz: Al₂SiO₄(F,OH)₂
Yellow Quartz Pebble
SiO2 (Silicon Dioxide) with Iron Impurities
Smoky Quartz
Silicon Dioxide (SiO2)
Citrine Quartz (Raw)
Silicon Dioxide (SiO2)
Chert Nodule
Microcrystalline Quartz (SiO2)
Agate
Silicon Dioxide (Chalcedony), SiO2
Green Aventurine (Propably a tumbled variety)
Aventurine Quartz (SiO2 with inclusions of Fuchsite)
Smoky Quartz
Silicon Dioxide (SiO2)
Blue Apatite
Apatite - Ca5(PO4)3(F,Cl,OH)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz (Milky Quartz / Clear Quartz)
Silicon Dioxide (SiO2)
Citrine or Yellow Quartz
Quartz (SiO2) with iron impurities
Yellow Quartz (Citrine or Iron-Stained Quartz)
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Jasper
Silicon dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2) with aluminum impurities
Chert (Green Jasper)
Microcrystalline Quartz (SiO2) with iron silicate inclusions
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
Quartz (Citrine / Yellow Quartz)
Silicon Dioxide (SiO2)
Jasper
Silicon dioxide (SiO2)
Citrine
Citrine (Silicon Dioxide - SiO2)
Chert (River Pebble)
Microcrystalline Quartz (SiO2)
Red Coral (Precious Coral)
Corallium rubrum (Calcium Carbonate, CaCO3)
Rough Citrine Quartz
Citrine (Silicon Dioxide, SiO2 with iron impurities)
Red Jasper with Quartz
Silicon Dioxide (SiO2) with Hematite impurities
Citrine Quartz (Carved Point)
Silicon Dioxide (SiO2) with iron impurities
Quartz Pebble (Tumbled / River Pebble)
Silicon Dioxide (SiO2)
Yellow Quartz (Citrine or Yellow Jasper)
Silicon Dioxide (SiO2) with iron impurities
Yellow Quartz / Citrine Quartz
Silicon Dioxide (SiO2)
Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
Tumbled jasper or quartzite pebble
Jasper (microcrystalline quartz, SiO₂), possibly iron-stained quartzite
Chert (Yellow Jasper)
Silicon dioxide (SiO2) with iron oxide inclusions
Citrine Quartz (Yellow Quartz)
Silicon Dioxide (SiO2) with iron impurities
Citrine (Heat-treated or Natural Quartz)
Silicon Dioxide (SiO2)
Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
Quartz (Variety: Citrine or Tumbled Chalcedony)
Silicon Dioxide (SiO2)
Green Aventurine
Silicon dioxide (SiO2) with inclusions of Fuchsite mica
Polished pink chalcedony (likely pink agate/geode)
Microcrystalline quartz, SiO₂; chalcedony with iron-bearing inclusions and possible druzy quartz
Banded Chert / Jasper
Silicon Dioxide (SiO2)
Citrine
Silicon Dioxide (SiO2)