Milky Quartz
Silicon Dioxide (SiO2)
Category
Browse metamorphic rock (variety of quartz) specimens identified by the Rock Identifier community.
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Agate
Silicon Dioxide (SiO2)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
Gabbro
Gabbro (mafic intrusive igneous rock)
Yellow Quartzite River Cobble
Meta-quartzite (SiO2 with iron oxide staining)
Smoky Quartz (with possible Feldspar inclusions)
Silicon Dioxide (SiO2)
Granitic Gneiss
Gneiss (Polymetamorphic Granitic Gneiss)
Banded Agate (Onyx variety)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Quartzite (Yellow/Tan river stone variety)
Quartzite (primarily SiO2)
Conglomerate (Red Sandstone variety)
Clastic Sedimentary Rock (Conglomeratic Sandstone)
Quartzite
Quartzite (primarily SiO2)
Orange Quartzite Pebble
Quartzite (SiO2)
Quartzite
Quartzite (primarily SiO2)
Sandstone (likely Greywacke or Lithic Sandstone)
Arenite / Wacke
Chert
Silicon dioxide (SiO2)
Quartzite (or Ferruginous Quartzite)
Metamorphosed Quartz Sandstone (SiO2 with Fe2O3 impurities)
Red Granite
Phaneritic Felsic Igneous Rock (Granite)
Banded Gneiss
Gneiss
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Quartzite (River Cobble)
Quartzite (SiO2)
Epidosite (Epidote-rich rock)
Epidotalite (primarily Ca2(Al2Fe3+)(SiO4)(Si2O7)O(OH))
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Gneiss
Gneiss
Gabbro
Phaneritic Basic Igneous Rock (composed primarily of pyroxene and calcium-rich plagioclase)
Tree Agate (Dendritic Agate/Quartz)
Silicon Dioxide (SiO2) with trace Manganese or Iron oxide inclusions
Quartz (Quartzite Pebble)
Silicon Dioxide (SiO2)
Jasper-Agate
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Granite
Phaneritic Plutonic Igneous Rock (primarily composed of quartz, alkali feldspar, and plagioclase)
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Shale (possibly Carbonaceous or Oil Shale)
Laminated Mudstone (primarily clay minerals and quartz)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz (Tumbled)
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Mica Schist
Mica Schist (predominantly Muscovite or Biotite sheet silicates)
Orange Quartzite (River Pebble)
Quartzite (SiO2 with Iron Oxide inclusions)
Quartz
Silicon Dioxide (SiO2)
Ocean Jasper (Orbicular Jasper)
Silicon Dioxide (SiO2) with various inclusions