Agate (specifically a Banded Agate with a Quartz Druzy center)
Silicon Dioxide (SiO2)
Category
Browse mineral (variety of quartz) specimens identified by the Rock Identifier community.
Agate (specifically a Banded Agate with a Quartz Druzy center)
Silicon Dioxide (SiO2)
Chert
Microcrystalline Quartz (SiO2)
Chert (Yellow Jasper variant)
Microcrystalline Quartz (SiO2)
Quartz (Amethyst variety)
Silicon Dioxide (SiO2)
Amazonite
Microcline (KAlSi3O8) with trace Lead (Pb)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Rose Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace titanium, iron, or manganese
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Rose Quartz
Rose Quartz (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of Titanium, Iron, or Manganese
Clear Quartz (or Rock Crystal)
Quartz (SiO₂)
Green Tiger's Eye
Silicified Crocidolite (Quartz variety, SiO2)
Rough Green Fluorite
Fluorite (Calcium Fluoride - CaF2)
Banded Agate
Agate (Silicon Dioxide, SiO2)
Jasper
Jasper (Silicon Dioxide, SiO2)
Granite
Granite (Felsic Plutonic Rock)
Agate (Plume/Moss variety)
Cryptocrystalline Quartz (SiO2) with iron/manganese inclusions
Red Jasper
Microcrystalline quartz (SiO2) with Hematite (Fe2O3) impurities
Blue Lace Agate (often dyed)
Silicon dioxide (SiO2) - variety of chalcedony
Chrysoprase
Chalcedony (cryptocrystalline SiO2 variety)
Strawberry Quartz
Quartz (SiO₂) with Goethite (α-FeO(OH)) and/or Lepidocrocite (γ-FeO(OH)) inclusions
Smoky Quartz
Silicon Dioxide (SiO2)
Quartzite (specifically Milky Quartz variety)
Quartz (SiO2)
Agate (Carnelian-Blue Agate mix)
Silicon Dioxide (SiO2)
Smoky Quartz
Quartz (SiO₂)
Pyrite
Iron Sulfide (FeS2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Fuchsite-bearing Quartzite (Green Quartzite)
Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2) in Quartzite
Banded Agate
Sedimentary Cryptocrystalline Quartz (SiO2)
Mixed Gemstone Collection
SiO2 (Quartz varieties) and Biogenic CaCO3 (Nacre)
Mixed Gemstone Beaded Jewelry
Various minerals (e.g., Quartz varieties like Rose Quartz, Amethyst; Peridot; Garnet; etc.)
Quartz (Iron-stained or Milky)
Silicon Dioxide (SiO2)
Blue Quartzite (Dyed)
Silicon Dioxide (SiO2) with inclusions
Quartz (Milky or Rough Variety)
Silicon Dioxide (SiO2)
Tiger's Eye (Rough)
Pseudomorph of Quartz after Crocidolite (SiO2 with FeOOH inclusions)
Amazonite in Pegmatite Matrix with Smoky Quartz
K(AlSi3O8) - Microcline (var. Amazonite) with SiO2 (Quartz)
Greenstone / Greenschist
Chlorite schist / Meta-basalt
Quartz pebble
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)