Opalite
Synthetically produced glass (Silicon Dioxide with metallic inclusions)
Mineraloid (Man-made Glass)
Category
Mineral (Silicate Variety)
Browse mineral (silicate variety) specimens identified by the Rock Identifier community.
Learn about Mineral (Silicate Variety) in the encyclopedia
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Snowflake Obsidian
Volcanic Glass with Spherulite Inclusions (primarily SiO2)
igneous
Yellow Jasper
Silicon Dioxide (SiO2) with goethite or limonite inclusions
sedimentary
Green Aura Quartz (Titanium treated Kyanite or Quartz)
Silicon Dioxide (SiO2) or Aluminum Silicate (Al2SiO5) with Titanium/Metal Oxide coating
mineral (man-made aura treatment)
Red Jasper
Chalcedony/Quartz (SiO2) with iron inclusions
mineral
Amazonite
Amazonite (KAlSi3O8)
mineral
Jasper
Silicon dioxide (SiO2)
sedimentary
Yellow Jasper
Silicon Dioxide (SiO2) with iron hydroxides (Goethite/Limonite)
sedimentary
Quartz (Variety of Rough Mineral Specimens)
Silicon Dioxide (SiO2)
mineral
Yellow Jasper
Silicon dioxide with iron inclusions (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Green Apophyllite and Stilbite on Quartz Cluster
Apophyllite-(K) (KCa4(Si8O20)(F,OH)·8H2O), Stilbite-Ca (NaCa4(Si27Al9)O72·28H2O), Quartz (SiO2)
Mineral
Banded Agate
Agate (Cryptocrystalline variety of Quartz, SiO2)
mineral
White Quartz (Carved or Tumbled)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Green Aventurine
Aventurine (variety of Quartz - SiO2)
Mineral_Rock
Red Jasper (possibly)
Jasper (a variety of Chalcedony, SiO2)
Mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Flower Agate (Cherry Blossom Agate)
Chalcedony (Silicon Dioxide) with Opaque Inclusions - SiO2
mineral
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (White/Milky)
Silicon Dioxide (SiO2)
mineral
Orbicular Jasper (Ocean Jasper)
Silicon Dioxide (SiO2) with various inclusions
mineral
Specular Hematite with Quartz
Ferric oxide (Fe2O3) and Silicon dioxide (SiO2)
Mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Carnelian (a variety of Chalcedony)
Silicon Dioxide (SiO₂)
Mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Selenite (Satin Spar)
Gypsum (CaSO4·2H2O)
mineral
Ocean Jasper or Orbicular Jasper
SiO2
mineral
Satin Spar Gypsum
Calcium Sulfate Dihydrate (CaSO4·2H2O)
Mineral
Quartzite with Chlorite staining
Metamorphic Quartzite (SiO2 with Chlorite inclusions)
metamorphic
Pyrite
Iron Disulfide (FeS2)
mineral
Potassium Feldspar (Orthoclase)
KAlSi3O8
mineral
Red Jasper
Quartz (Silicon Dioxide) with Hematite inclusions, SiO2
mineral
Banded Agate (Agatized Geode Slice)
Silicon Dioxide (SiO₂)
mineral
Larimar
Pectolite (a variety of pectolite, NaCa2Si3O8(OH))
Mineral
Labradorite
(Ca, Na)(Al, Si)4O8 (Plagioclase Feldspar)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Agate
Agate (Cryptocrystalline Variety of Quartz, SiO2)
Mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral