Smoky Quartz
Silicon Dioxide (SiO2)
Category
Browse synthetic (not a natural rock) specimens identified by the Rock Identifier community.
Smoky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Smoky Quartz (Silicon Dioxide, SiO2)
Citrine Quartz
Silicon Dioxide (SiO2) with ferric iron impurities
Smoky Quartz
Silicon Dioxide (SiO2)
Sandstone
Arenite
Dyed Agate
Silicon Dioxide with artificial pigment (SiO2)
Amethyst (Tumbled)
Silicon Dioxide (SiO2) with iron impurities
Diamond
Carbon (C)
Smoky Quartz
Silicon Dioxide (SiO2)
Diamond (or Cubic Zirconia)
Carbon (C) / Cubic Zirconium Dioxide (ZrO2)
Quartz (Smoky/Grey Variety)
Silicon Dioxide (SiO2)
Dyed Dragon Vein Agate
Silicon Dioxide (SiO2) with artificial dye
Milky and Smoky Quartz Cobble
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Engineer Quartz/Quartzite
SiO2 (Silicon Dioxide with binders)
Sandstone
Arenite
Citrine
Silicon Dioxide (SiO2)
Citrine
Silicon Dioxide (SiO2)
Green Quartz (Prasiolite/Adventurine)
Silicon Dioxide (SiO2) with inclusions
Amethyst (Faceted)
Quartz (SiO2) with iron impurities
Quartzite
Metamorphic Quartz (SiO2)
Amethyst
Silicon dioxide (variant with ferric iron impurities), SiO2
Citrine Quartz
Silicon Dioxide (SiO2)
Diamond
C (Carbon)
Yellow Quartz (Citrine Quartz Pebble)
Silicon Dioxide (SiO2)
Blue Agate (Dyed)
Silicon Dioxide (SiO2) with artificial pigment
Citrine
Citrine (Silicon Dioxide - SiO2)
Citrine Quartz
Silicon Dioxide (SiO2)
Diamond (or Cubic Zirconia)
Carbon (C) or Zirconium Dioxide (ZrO2)
Diamond
Natural Carbon (C)
Blue-dyed Quartz Druzy
Silicon Dioxide (SiO2) with artificial pigment
Diamond inlaid in Jewelry
Carbon (C)
Obsidian
Volcanic Glass (Amorphous SiO2)
Yellow Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Smoky Quartz (Silicon Dioxide, SiO2)
Jade (Nephrite or Jadeite)
Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2 - a variety of actinolite, an amphibole mineral); Jadeite (Na(Al,Fe3+)Si2O6 - a pyroxene mineral)
Purple Banded Agate
Cryptocrystalline Quartz (SiO2)
Chert Geode with Quartz Druzy
Microcrystalline Quartz (SiO2) with macrocrystalline Quartz
Quartz (Smoky Quartz variant)
Silicon Dioxide (SiO2)
Blue Lace Agate (often dyed)
Silicon dioxide (SiO2) - variety of chalcedony