Green Aventurine
Quartz with fuchsite inclusions (SiO2)
Category
Browse mineral (synthetic paper and ink polymorph) specimens identified by the Rock Identifier community.
Green Aventurine
Quartz with fuchsite inclusions (SiO2)
Rose Quartz
Silicon Dioxide (Quartz), SiO2
Almandine Garnet
Almandine, Fe3Al2(SiO4)3
Quartz
Silicon Dioxide (SiO2)
Amethyst
Quartz (SiO2)
Rose Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz pebble
Silicon dioxide (SiO2)
Fulgurite
Lechatelierite (Silica glass tube)
Heliotrope (Bloodstone)
Chalcedony variety Quartz (SiO2) with hematite/chlorite inclusions
Rose Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz
Silicon Dioxide (SiO2)
Aventurine
Quartz (SiO2) with fuchsite inclusions
Tumbled Stone
Silicon dioxide / Various silicates
Quartz
Silicon Dioxide (SiO2)
Jasper in Quartz / Brecciated Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
Quartz Pebble
Silicon Dioxide (SiO2)
Carnelian
Chalcedony (Silicon Dioxide, SiO2)
Quartz Boulder
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Green Aventurine
Quartz with Fuchsite inclusions (SiO2)
Quartz
Silicon Dioxide (SiO2)
Limonite Concretion
Hydrated Iron Oxide-Hydroxide, FeO(OH)·nH2O
Iron-stained Quartz Pebble
Silicon Dioxide (SiO2) with Hematite/Limonite coatings
Chalcedony (Agate / Quartz Pebble)
Silicon Dioxide (SiO2)
Tumbled Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
Agate (Carnelian / Chalcedony pebble)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Tumbled Yellow Quartz (Golden Quartz / Citrine)
Silicon Dioxide (SiO2)
Quartz Matrix with Iron Staining / Mica Schist
Silicon Dioxide (SiO2) with Iron Oxide staining
Tiger's Eye
Quartz pseudomorph after Crocidolite (SiO2 with Fe oxide inclusions)
Pink Feldspar / Rhodochrosite (Tumbled Pink Quartzite)
SiO2 (Quartz) / KAlSi3O8 (Potassium Feldspar)
Agate Geode Slice with Druzy Quartz
Silicon Dioxide (SiO2) - Banded Chalcedony with Quartz
Red Jasper (with Quartz)
Silicon Dioxide (SiO2) with Hematite inclusions
Dyed Howlite (Turquenite)
Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)
Blue Cat's Eye Quartz (Heated/Dyed)
Silicon Dioxide (SiO2) with fibrous inclusions
Chalcedony (Agate / Moss Agate)
Silicon Dioxide (SiO2)
Yellow Quartz / Citrine Pebble
Silicon Dioxide (SiO2)
Agate (or Operculum / Fossil Shell)
Silicon Dioxide (SiO2)
Lake Superior Agate
Banded Chalcedony / Silicon Dioxide (SiO2)
Carnelian and Strawberry Quartz
Silicon Dioxide (SiO2) with Hematite and Limonite inclusions