Blue Moss Agate
Silicon Dioxide (SiO2) with mineral inclusions
Category
Browse mineral (synthetic paper and ink polymorph) specimens identified by the Rock Identifier community.
Blue Moss Agate
Silicon Dioxide (SiO2) with mineral inclusions
Hematite
Iron(III) oxide (Fe2O3)
Tumbled chalcedony or quartz fragment
Microcrystalline quartz, SiO₂ (probable chalcedony)
Carnelian Agate
Silicon Dioxide (SiO2)
Diamond
Carbon (C)
Diamond
Diamond (C)
Diamond (in Jewelry)
Carbon (C)
Gold Ore
Gold-bearing Quartz (Native Gold, Au)
Sulfide Ore (likely Galena and Sphalerite in Quartz)
Lead-Zinc Ore (PbS and ZnS)
Granite Pebble
Intrusive Igneous Rock
Quartz
Silicon Dioxide (SiO2)
Quartz (Peach/Pink Variety)
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
White Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz with Matrix
Silicon Dioxide (SiO2)
Quartz (Peach / Hematoid Quartz)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Blue Celestite
Celestine (SrSO4)
Amethyst
Quartz (SiO2)
Tumbled Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Fulgurite
Lechatelierite (Silica glass tube)
Quartz (Cut and Polished Sphere)
Silicon Dioxide (SiO2)
Tiger's Eye (Pendant)
Quartz Pseudomorph (SiO2) after Crocidolite
Quartz Pebble
Silicon Dioxide (SiO2)
Red Tiger's Eye
Silicified Crocidolite (SiO2 with iron oxide inclusions)
Quartz (Druzy or Chalcedony variant)
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz with Iron Oxide
SiO2
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Sunstone
Plagioclase Feldspar (Na,Ca)(Si,Al)4O8
Quartz (Milky or Iron-stained)
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Carnelian
Silicon dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Crystal Fragment
Silicon Dioxide (SiO2)