Graphic Granite
Pegmatitic Feldspar and Quartz (Graphic Granite)
igneous
Category
Synthetic (Ceramic)
Browse synthetic (ceramic) specimens identified by the Rock Identifier community.
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Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartzite with Quartz Vein
Quartzite (primarily SiO2)
metamorphic
Quartz (Vein Quartz / Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Chert
Chert (SiO2)
sedimentary
Pegmatite with Muscovite
Granitic Pegmatite (KAl2(AlSi3O10)(OH)2)
igneous
Hematite
Iron(III) oxide (Fe2O3)
mineral
Lepidolite
K(Li,Al)3(Si,Al)4O10(F,OH)2
mineral
Pegmatite (with Muscovite Mica and Quartz)
Granitic Pegmatite (chiefly KAlSi3O8, SiO2, and KAl2(AlSi3O10)(OH)2)
igneous
Quartzite
Quartzite (SiO2)
metamorphic
Chert (Flint)
Silicon dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Red Claystone / Mudstone
Argillaceous sedimentary rock
sedimentary
Chert (often called Flint when dark)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Potassium Feldspar (Microcline)
KAlSi3O8
mineral
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
mineral
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Black Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Quartzite
Quartzite (mostly SiO2)
metamorphic
Potassium Feldspar (Orthoclase)
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Flint
Chert (Silicon dioxide, SiO2)
sedimentary
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Pegmatite
Coarse-grained Igneous Rock (Granitic Pegmatite)
igneous
Quartzite Pebble
Metamorphic Quartzite (primarily SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Cubic Zirconia (in Jewelry)
Zirconium Dioxide (ZrO2)
mineral
Chert (Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
White quartz pebble
Quartz (SiO₂), likely milky quartz
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Blue Kyanite in Schist
Al2SiO5 in Mica Schist
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Talc Schist / Soapstone
Talc (Mg3Si4O10(OH)2)
metamorphic
Lepidolite in Quartz
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2 / SiO2
mineral
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Milky Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartzite
Quartzite (SiO2)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
mineral
Potassium Feldspar (Orthoclase)
Orthoclase (KAlSi3O8)
mineral