Quartzite (or Milky Quartz pebble)
Quartzite (Metamorphosed Sandstone) / Silicon Dioxide (SiO2)
Category
Browse metamorphic or sedimentary specimens identified by the Rock Identifier community.
Quartzite (or Milky Quartz pebble)
Quartzite (Metamorphosed Sandstone) / Silicon Dioxide (SiO2)
River Cobble (Quartzite)
Quartzite (SiO2)
Blue Quartzite (Aventurine)
Silicon Dioxide (SiO2) with mineral inclusions
Unakite
Epidotized Granite
Mica Schist
Mica Schist (Complex Silicate Rock)
Schist (Diamond Drill Core)
Mica Schist
Quartzite
Quartzite (primarily SiO2)
Green Schist
Greenschist (composed of Chlorite, Actinolite, and Epidote)
Jade
Jade can refer to two distinct minerals: Nephrite (a variety of the mineral actinolite, Ca2(Mg,Fe)5Si8O22(OH)2) and Jadeite (Na(Al,Fe3+)Si2O6). Based on the image, showing a relatively uniform green color and possibly slight translucence in bead form, it is very likely one of these, but determining which one from a photo is difficult without specific testing.
Citrine (Yellow Quartz)
Silicon Dioxide (SiO2)
Sapphire
Corundum (Al2O3)
Schist
Mica Schist (primarily Muscovite and Quartz)
Yellow Quartzite
Quartzite (primarily Silicon Dioxide - SiO2)
Nuummite
Nuummite (Orthoamphibole rock composed of Anthophyllite and Gedrite, (Mg,Fe)7Si8O22(OH)2)
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
Dumortierite Quartz (Blue Quartz)
Al7BO3(SiO4)3O3 (Aluminum Boro-silicate included in Quartz)
Quartzite
Quartzite (primarily SiO2)
Red Quartzite River Stone
Quartzite (SiO2)
Quartzite
Quartzite (SiO2)
Schist
Mica Schist
Schist
Mica Schist
Serpentine
Serpentine group, including Antigorite, Lizardite, and Chrysotile (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4
Soapstone
Steatite (composed primarily of Talc, Mg3Si4O10(OH)2)
Quartzite Cobble
Quartzite (SiO2)
Quartzite
Quartzite
Greenstone
Metabasalt / Greenschist facies rock
Schist
Mica Schist
Quartzite Cobble
Quartzite (SiO2)
White Marble (Tumbled)
Recrystallized Calcite (CaCO3)
Green Aventurine
SiO2 (Silicon Dioxide with Fuchsite inclusions)
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
Quartz vein in Schist
Crystalline Silicon Dioxide (SiO2) in Metamorphic Host
Nephrite Jade
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)
Muscovite Mica
KAl2(AlSi3O10)(F,OH)2
Almandine Garnet
Almandine (Fe3Al2(SiO4)3)
Muscovite Mica
Muscovite - KAl2(AlSi3O10)(OH)2
Rhodonite
Rhodonite (Manganese Silicate), (Mn,Fe,Mg,Ca)SiO3
Fuchsite in Quartz
K(Al,Cr)2(AlSi3O10)(OH)2 in SiO2
Quartzite
Quartzite (SiO2)
Talc (Soapstone variety)
Talc (Hydrated magnesium silicate) - Mg3Si4O10(OH)2
Yellow Quartzite
Quartzite (SiO2)
Muscovite Mica
KAl2(AlSi3O10)(F,OH)2