Quartz (Milky/Yellowish variety)
Silicon Dioxide (SiO2)
mineral
Category
Mineral (Silicate Variety)
Browse mineral (silicate variety) specimens identified by the Rock Identifier community.
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Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Zebra Jasper
Tektite variety of Silicon Dioxide (SiO2) with inclusions
sedimentary
Rhodochrosite (Beads) and Citrine (Pendant)
Rhodochrosite (MnCO3) and Quartz variety Citrine (SiO2)
mineral
Pegmatite (likely Granitic Pegmatite)
Pegmatite (a coarse-grained igneous rock, often with granitic composition)
igneous
Ocean Jasper
Orbicular Jasper (variety of Chalcedony/Quartz, SiO2)
sedimentary
Red Chert (Jasper)
Silicon Dioxide (SiO2)
sedimentary
Chert (Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Chert
Microcrystalline silica (SiO2)
sedimentary
Jasper (Iron Oxide Rich)
Silicon Dioxide (SiO2) with Fe2O3 (Hematite/Goethite) inclusions
sedimentary
Chert (Nodule)
Silicon Dioxide (SiO2)
sedimentary
Obsidian
Obsidian (Volcanic Glass)
igneous
Garnet-Bearing Schist
Almandine Garnet Micaceous Schist
metamorphic
Jasper-Agate
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Greenstone
Greenschist / Meta-basalt
metamorphic
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz with Epidote or Chlorite inclusions
Silicon Dioxide (SiO2) with inclusions of Epidote {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
mineral
Tiger's Eye
SiO2 (Quartz with inclusion of iron oxides)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with traces of titanium, iron, or manganese
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Chalcedony
Silicon dioxide (SiO2) - Cryptocrystalline Quartz
mineral
Chalcedony (Agate/Chert)
Chalcedony (Silicon Dioxide, SiO2)
mineral
Smoky Quartz
SiO2 (Silicon Dioxide)
mineral
Yellow Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Rose Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Mookaite Jasper
Radiolarite (Chert/Jasper variety), formula SiO2
sedimentary
Blue Goldstone
Aventurine Glass
man-made glass
Smoky Quartz
SiO2 (Silicon Dioxide)
Mineral
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
mineral
Amygdaloidal Rhyolite
Amygdaloidal Rhyolite (Felsic volcanic rock)
igneous
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Rose Quartz
Silicon Dioxide with traces of Titanium, Iron, or Manganese (SiO2)
mineral
Rose Quartz
SiO2 (Silicon Dioxide with trace amounts of iron, manganese, or titanium)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Rose Quartz Bead
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Green Tiger's Eye
Silicified Crocidolite (Quartz variety, SiO2)
metamorphic
Snowflake Obsidian
Spherulitic Volcanic Glass (primarily SiO2 with Cristobalite inclusions)
igneous
Feldspar (Orthoclase)
Potassium Feldspar (KAlSi3O8)
mineral
Carnelian
Carnelian (a variety of Chalcedony, SiO ₂)
Mineral (specifically a variety of Chalcedony, which is a cryptocrystalline quartz)
Quartz (Milk or Clear Variety)
Silicon Dioxide (SiO2)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace Titanium or Manganese
mineral
Chert
Microcrystalline Quartz (SiO2)
sedimentary