Quartzite Pebble
Quartzite (primarily SiO2)
metamorphic
Category
Synthetic (Ceramic)
Browse synthetic (ceramic) specimens identified by the Rock Identifier community.
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Chert (Iron-stained)
Chert / Microcrystalline Silicon Dioxide (SiO2)
sedimentary
Chert / Flint
Microcrystalline Quartz (SiO2)
sedimentary
Celestite
Celestine (SrSO4)
mineral
K-Feldspar (Potassium Feldspar)
Potassium Feldspar (Microcline or Orthoclase), KAlSi3O8
mineral
Red Sand / Ferruginous Sand
Silicon dioxide (SiO2) with Iron Oxide (Fe2O3) impurities
sedimentary
Quartzite Pebble
Quartzite (SiO2)
metamorphic
Black Flint
Chert (Microcrystalline Quartz, SiO2)
sedimentary
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Iolite (Cordierite)
Cordierite (Magnesium iron aluminum cyclosilicate), Mg2Al4Si5O18
metamorphic
Milky Quartz with Limonite
Silicon Dioxide (SiO2)
mineral
Sodalite
Sodalite (Na8Al6Si6O24Cl2)
mineral
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Microcline (Potassium Feldspar)
Microcline (KAlSi3O8)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Potassium Feldspar
K-Feldspar (Orthoclase/Microcline), KAlSi3O8
mineral
Quartzite
Quartzite (SiO2)
metamorphic
Siltstone
Siltstone (primarily composed of quartz and clay minerals)
sedimentary
Potassium Feldspar
Orthoclase (KAlSi3O8)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Feldspar (specifically Orthoclase or Plagioclase)
Potassium Aluminum Silicate (KAlSi3O8) or Sodium/Calcium Aluminum Silicate
mineral
Milky Quartz (with potential inclusion of feldspar)
Silicon Dioxide (SiO2)
Mineral
Potassium Feldspar
Orthoclase (KAlSi3O8)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartzite
Quartzite (composed primarily of SiO2)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
Mineral
Quartzite
Quartzite (SiO2)
metamorphic
Granitic Pegmatite (River Rock specimen)
Granite / Pegmatite (composed of SiO2, KAlSi3O8, and NaAlSi3O8)
igneous
Potassium Feldspar
K-Feldspar (KAlSi3O8)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
mineral
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Feldspar (specifically Orthoclase)
Potassium aluminum silicate (KAlSi3O8)
mineral
Milky Quartz with Hematite Staining
Silicon Dioxide (SiO2)
mineral
Quartzite Pebble
Quartzite (primarily SiO2)
metamorphic
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Feldspar
Potassium Feldspar (KAlSi3O8)
mineral