Quartzite
Quartzite (primarily SiO2)
Category
Browse metamorphic rock (formed from a fibrous crocidolite asbestos) specimens identified by the Rock Identifier community.
Quartzite
Quartzite (primarily SiO2)
Satin Spar (Selenite)
Gypsum (CaSO4·2H2O)
Nuummite
Nuummite (Orthoamphibole rock composed of Anthophyllite and Gedrite, (Mg,Fe)7Si8O22(OH)2)
Gneiss
Gneiss
Quartzite Pebble
Metamorphosed Quartz Sandstone (SiO2)
Quartz on Schist
Silicon Dioxide (SiO2) on Foliated Metamorphic Rock
Mica Schist
Mica Schist (KAl2(AlSi3O10)(OH)2 - Muscovite component)
Quartz Vein in Host Rock
Hydrothermal Quartz (SiO2) in Slates/Schists
Quartzite
Quartzite (SiO2)
Quartz (Milk Quartz / Massive Quartz)
Silicon Dioxide (SiO2)
Quartzite
Quartzite (primarily SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Quartzite Pebble
Metamorphosed Quartz Sandstone (SiO2)
Quartzite
Quartzite (Primary mineral: SiO2)
Schist
Mica Schist
Gneiss (Pebble)
Gneiss
Biotite (Black Mica)
Biotite [K(Mg,Fe)3(AlSi3O10)(F,OH)2]
Blue Sapphire
Corundum (Al2O3 - Aluminum Oxide)
Yellow Quartzite or Yellow Jasper
Quartzite (primarily SiO2 with Iron oxide staining)
Quartzite
Quartzite (SiO2)
Quartzite
Quartzite (primarily SiO2)
Gneiss
High-grade regional metamorphic rock (Foliated)
River Rock (Quartzite)
Quartzite (SiO2)
Quartzite
Quartzite (primarily SiO2)
Quartzite (Sugar Quartz)
Quartzite (primarily SiO2)
Red Quartzite Slipper Stone
Quartzite (SiO2)
Marble (Carrara style)
Recrystallized Calcite-rich Metamorphic Rock (CaCO3)
Quartz Pebble (Citrine-colored or Stained Quartz)
Silicon Dioxide (SiO2)
Satin Spar (Selenite)
Gypsum (Calcium Sulfate Dihydrate) - CaSO4·2H2O
Quartz (Iron-Stained or Milky Quartz)
Silicon Dioxide (SiO2)
Quartzite
Quartzite (SiO2)
Quartzite (River Stone)
Quartzite (SiO2)
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Epidote
Epidote (formula: Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
Jade
There are two distinct minerals classified as Jade: Jadeite (Na(Al,Fe3+)Si2O6) and Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2). Based on the image showing translucent, somewhat fibrous material, it is likely Nephrite.
Quartz (Iron-Stained)
Silicon Dioxide (SiO2)
Clear Quartz Sphere
Quartz (Silicon Dioxide, SiO2)
Quartzite (tumbled or water-worn)
Quartzite (composition: SiO2)
Quartz (likely a form of massive or vein quartz)
Quartz (SiO₂)
Unidentifiable Rock Fragment
Epidote with Feldspar/Quartz (Unakite-like)
Epidotized Granite (Ca2(Al,Fe)3(SiO4)3(OH) + KAlSi3O8)
Eclogite
Eclogite