Quartz (Milky or Cloudy variety)
Silicon Dioxide (SiO2)
Category
Browse mineral (specifically a variety of quartz) specimens identified by the Rock Identifier community.
Quartz (Milky or Cloudy variety)
Silicon Dioxide (SiO2)
Amazonite
Amazonite (KAlSi3O8, a variety of Microcline)
Rose Quartz
Silicon Dioxide (SiO2)
Banded Agate (specifically Lake Superior Agate style)
Agate (Cryptocrystalline Quartz), SiO2
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (likely Jasper or Chert variety)
Quartz (SiO₂)
Banded Agate (specifically Lace Agate type)
Silicon Dioxide (SiO2)
Jasper (Banded Argillite/Chert mix)
Silicon Dioxide (SiO2) with iron oxide inclusions
Hypersthene
Hypersthene ((Mg,Fe)SiO₃)
Jasper (specifically Yellow or Picture Jasper)
Silicon Dioxide (SiO2) with iron oxide inclusions
Pyrite
Iron Sulfide (FeS2)
Orange Quartz (or Tumbled Carnelian)
Silicon Dioxide (SiO2) with iron oxide inclusions
Emerald In Matrix (Quartz/Calcite)
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
Smoky Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of Titanium, Iron, or Manganese
Quartz (possibly milky quartz)
Quartz (Silica; SiO₂)
Quartz
Quartz (SiO2 - Silicon Dioxide)
Blue Topaz (specifically London Blue shade)
Topaz - Al2SiO4(F,OH)2
Unakite
Epidotized Granite
Rose Quartz
Silicon dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Quartz (Smoky Quartz variant)
Silicon Dioxide (SiO2)
Dendritic Agate (specifically Orange/Tumbled)
Silicon Dioxide (SiO2) with Oxide Inclusions
Chert (specifically Flint)
Silicon Dioxide (SiO2)
Quartz (likely Rose Quartz or Milky Quartz based on color)
Quartz (SiO2 - Silicon Dioxide)
Banded Calcite (often sold as 'Green Onyx')
Calcite (Calcium Carbonate, CaCO3)
Quartz Vein in Host Rock (Gossanous Matrtix)
Silicon Dioxide (SiO2) with iron oxides (Limonite/Hematite)
Quartz (Milky or Cloudy variety)
Silicon Dioxide (SiO2)
Pink Granite (River Pebble)
Phaneritic Felsic Igneous Rock
Pyrite
Iron Sulfide (FeS2)
Amazonite
Potassium Aluminum Silicate (KAlSi3O8)
Blue Quartzite (Aventurine variety)
Silicon Dioxide (SiO2) with inclusions of Dumortierite or Magnesio-riebeckite
Yellow Quartz (Citrine Quartz variety / Ferruginous Quartz)
Silicon Dioxide (SiO2) with iron inclusions
Moss Agate
Chalcedony (SiO2) with inclusions of manganese or iron oxide
Quartz / Rock Crystal
Silicon Dioxide (SiO2)
Agate
Silicon dioxide (SiO2) - variety Chalcedony
Sandstone or Mudstone with Iron Staining
Ferruginous Sandstone/Mudstone
Agate
Silicon dioxide (SiO2)
Chert (often called Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Tree Agate
Silicon Dioxide (SiO2)
Geode (Unopened)
Siliceous Septarian Concretion / Geode (SiO2)
Jasper
Jasper (Silica/Quartz) - SiO2
Epidote
Epidote (Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH))