Quartz with Iron Staining
Silicon Dioxide (SiO2)
mineral
Category
Metamorphic Or Sedimentary
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Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Quartzite Pebble
Quartzite (SiO2)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Garnet
Garnet Group (e.g., Almandine Fe3Al2(SiO4)3 or Pyrope Mg3Al2(SiO4)3)
mineral
Mica Schist
Mica Schist (KAl2(AlSi3O10)(OH)2 / K(Mg,Fe)3(AlSi3O10)(OH)2)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Serpentine
Antigorite-Lizardite-Chrysotile (Mg3Si2O5(OH)4)
metamorphic
Milky Quartz (with Chlorite/Mineral Inclusions)
Silicon Dioxide (SiO2)
mineral
Schist
Mica Schist
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartzite Pebble
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Almandine Garnet
Almandine, Fe3Al2(SiO4)3
mineral
Quartzite Pebble
Quartzite (SiO2)
metamorphic
Quartz
Silicon dioxide (SiO2)
mineral
Quartzite
Quartzite (SiO2)
metamorphic
Mica Schist
Mica Schist (primarily Muscovite or Biotite sheet silicates)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Jasper and Epidote (Unakite-like specimen)
Epidotized granite or Jasper with Epidote inclusions
metamorphic
Quartzite Cobble
Quartzite (mostly SiO2)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartzite
Quartzite (SiO2)
metamorphic
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartzite with Gneissic Banding
Quartzite (primarily SiO2) with mafic mineral inclusions
metamorphic
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Blue Quartzite
Quartzite (mostly SiO2 with mineral inclusions)
metamorphic
Schist
Mica Schist
metamorphic
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Blue Quartz (Aventurine)
Silicon Dioxide (SiO2) with fibrous inclusions (commonly Dumortierite)
mineral
Schist
Mica Schist (Medium-grade metamorphic rock)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
mineral
Quartzite
Quartzite (SiO2)
metamorphic
Garnet
Garnet group (X3Y2(SiO4)3)
mineral
Quartzite pebble
Quartzite (primarily SiO2)
metamorphic
Quartzite with Iron Inclusions
Metamorphosed Quartz Sandstone (SiO2 with Fe2O3)
metamorphic
Quartzite (Iron-stained)
Quartzite (SiO2 with iron oxides)
metamorphic
Rough Emerald
Emerald (Beryl), Be3Al2(SiO3)6
mineral
Pink Quartzite
Quartzite (primarily SiO2)
metamorphic
Cone-in-cone structure (Limestone)
Cone-in-cone structure (Secondary Sedimentary Structure)
sedimentary