Tumbled milky quartz
Quartz (silicon dioxide, SiO₂)
mineral
Category
Synthetic (Ceramic)
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Tumbled milky quartz
Quartz (silicon dioxide, SiO₂)
mineral
Tumbled milky quartz
Quartz (silicon dioxide, SiO₂)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Chert (Flint/Chalcedony)
Silicon Dioxide (SiO2)
sedimentary
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Quartzite
Quartzite (primarily SiO2)
metamorphic
Plagioclase Feldspar
Plagioclase (NaAlSi3O8 - CaAl2Si2O8 series)
mineral
Chert (White Chert / Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite Pebble
Quartzite (primarily SiO2)
metamorphic
Potassium Feldspar (Orthoclase)
KAlSi3O8
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Blue Dumortierite Quartz
Dumortierite in Quartz (AlAl6BSi3O12(O,OH)3)
mineral
Quartzite Pebble
Metamorphic Quartzite (primarily SiO2)
metamorphic
Quartzite Pebble
Quartzite (primarily SiO2)
metamorphic
Feldspar-rich Pegmatite
Granitic Pegmatite (principally KAlSi3O8)
igneous
Dumortierite Quartz
Dumortierite (Al7BO3(SiO4)3O3 / inclusion in SiO2)
metamorphic
Weathered quartz-rich rock, possibly milky quartz or quartz-bearing granite
Quartz (SiO₂), potentially with feldspar and iron-oxide staining
mineral
Pegmatitic pink feldspar–quartz rock
Granitic pegmatite; chiefly microcline/orthoclase feldspar (KAlSi₃O₈), quartz (SiO₂), and minor mica
igneous
Celestite
Celestine (SrSO4)
mineral
Quartzite
Quartzite (principally Silicon Dioxide, SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Plagioclase Feldspar
Plagioclase (NaAlSi3O8 - CaAl2Si2O8)
mineral
Chert (often called Flint in this context)
Silicon Dioxide (SiO2)
sedimentary
Pink Quartz
Silicon Dioxide (SiO2) with trace inclusions
mineral
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Quartzite
Metamorphic rock (SiO2)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartzite River Rock
Quartzite (primarily SiO2)
metamorphic
Milky Quartz (with Iron staining)
Silicon Dioxide (SiO2)
mineral
Potassium Feldspar
Orthoclase (KAlSi3O8)
mineral
Kyanite in Quartz
Kyanite (Al2SiO5) with Quartz (SiO2)
metamorphic
Chert (variations include Flint/Jasper)
Chert (Silicon Dioxide, SiO2)
sedimentary
Gray Quartzite River Rock
Meta-quartzite (SiO2)
metamorphic
Milky Quartz
Silicon dioxide (SiO2)
mineral
Quartzite
Quartzite (SiO2)
metamorphic
Orthoclase (Potassium Feldspar)
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Quartzite
Quartzite (SiO2)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Kaolinite Claystone
Al2Si2O5(OH)4 (Kaolinite)
sedimentary