Chert (Chalk-associated Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Category
Browse sedimentary or igneous associated mineral specimens identified by the Rock Identifier community.
Chert (Chalk-associated Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Gneiss (foliated metamorphic rock)
Gneiss
Quartz
Silicon Dioxide (SiO2)
Botryoidal Agate / Chalcedony Geode
Silicon Dioxide (SiO2)
Yellow Calcite
Calcite (Calcium Carbonate, CaCO3)
Quartz
Silicon Dioxide (SiO2)
White Quartz Pebble
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Bloodstone (Heliotrope)
Silicon Dioxide (SiO2) with Iron Oxide / Chlorite inclusions
White Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Chalcedony (Agate)
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Quartz Crystal Cluster
Silicon Dioxide (SiO2)
Carnelian
Carnelian (Cryptocrystalline Quartz, SiO2)
Rainbow Hematite Ring
Iron(III) oxide (Fe2O3) with thin-film coating
White Quartz
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Carnelian
SiO2 (Microcrystalline Quartz / Chalcedony)
Brown Agate
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Carnelian
Carnelian (a variety of Chalcedony), SiO2 (Silicon Dioxide)
Quartz (Druzy)
Silicon Dioxide (SiO2)
Carnelian
Silicon dioxide / Chalcedony (SiO2)
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
White Zircon
Zircon (Zirconium silicate, ZrSiO4)
Carnelian (Orange Chalcedony)
Silicon Dioxide (SiO2) with iron oxide impurities
Quartz (Milky or Citrine-tinted)
Silicon Dioxide (SiO2)
Yellow Agate / Chalcedony
Silicon Dioxide (SiO2)
Chalcedony with inclusions (Agate/Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Rough Quartz (likely Rose or Smoky variant)
Silicon Dioxide (SiO2)
Epidote
Epidote (Ca2(Al,Fe)3(SiO4)3(OH))
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Chalcedony (Agate/Carnelian variant)
Silicon Dioxide (SiO2)
Pyrite in Quartz
Iron Sulfide (FeS2) on Silicon Dioxide (SiO2)
Clear Quartz Crystal
Quartz (Silicon Dioxide - SiO2)
Quartz (Small Pebble)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)