Milky Quartz Vein with Iron Staining
Silicon Dioxide (SiO2)
Category
Browse metamorphic rock (for nephrite and some jadeite); mineral (for jadeite) specimens identified by the Rock Identifier community.
Milky Quartz Vein with Iron Staining
Silicon Dioxide (SiO2)
Sandstone
Arenite (a specific type of sandstone with less than 15% matrix)
Calcite
Calcite (CaCO3)
Quartz (Common Milky Quartz)
Silicon Dioxide (SiO2)
Glaucophane Schist (Blueschist)
Blueschist (Glaucophane-bearing schist)
Gneiss
Gneiss
Quartz / Rock Crystal
Silicon Dioxide (SiO2)
Muscovite Mica
Muscovite (Potassium Aluminum Silicate Hydroxide Fluoride), KAl2(AlSi3O10)(OH,F)2
Basalt
Basalt (a mafic extrusive igneous rock)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Unakite
Unakite (altered granite)
Nuummite
Nuummite (Orthorhombic amphiboles: Anthophyllite and Gedrite)
Granite Gneiss
Gneiss (high-grade metamorphic rock)
Schist
Mica Schist (primarily Muscovite or Biotite sheet silicates)
Quartz (Milky or White Quartz)
Silicon Dioxide (SiO2)
Mica Schist
Crystalline Schist (often containing Muscovite, Biotite, and Quartz)
Garnet
Almandine formula: Fe3Al2(SiO4)3
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Mica Schist
Mica Schist (primarily Muscovite and Biotite KAl2(AlSi3O10)(OH)2)
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Slate
Slate (foliated metamorphic rock)
Epidote in Quartz
Quartz with Epidote inclusions (SiO2 with Ca2(Al,Fe)3(SiO4)3(OH) inclusions)
Quartzite
Quartzite (Primary mineral: Silicon Dioxide, SiO₂)
Blue Apatite
Apatite group (Ca5(PO4)3(F,Cl,OH))
Blue Sapphire (Tumbled/Polished)
Corundum (Al2O3)
Milk Quartz (White) and Yellow Aventurine (Yellow)
Silicon Dioxide (SiO2)
Ruby (Pinkish-Red)
Corundum (Al2O3 with Chromium trace)
Quartzite (specifically an iron-stained or Carnelian-colored variety)
Silicon Dioxide (SiO2) with iron oxide inclusions
Garnet in Matrix (likely Almandine in Quartz/Mica Schist)
Almandine Garnet (Fe3Al2(SiO4)3) in Quartz-Feldspar host rock
Lapis Lazuli
Na8(Al6Si6O24)S2 (composed primarily of Lazurite, Calcite, and Pyrite)
Unakite
Epidotized Granite
Emerald in Matrix
Beryl (Be3Al2Si6O18) with trace amounts of Chromium/Vanadium
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Smoky Quartz
Silicon Dioxide (SiO2) with aluminum impurities
Blue Sapphire
Corundum (Al2O3)
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
Black Tourmaline (Schorl)
Schorl (Sodium iron silicate hydroxide boron silicate); NaFe3Al6(BO3)3Si6O18(OH)4
Smoky Quartz
Smoky Quartz (Silicon Dioxide - SiO2)
Quartz
Silicon Dioxide (SiO₂)
Quartz Vein in Host Rock
Silicon Dioxide (SiO2)
Quartzite with Chlorite/Epidote
Metamorphosed Quartzite (SiO2)
Quartz (Clear Quartz/Rock Crystal)
Silicon Dioxide (SiO2)