Prase quartz with actinolite inclusions
Silicon dioxide (SiO2) with Calcium Magnesium Iron Silicate Hydroxide inclusions
mineral
Category
Metamorphic And Mineral
Browse metamorphic and mineral specimens identified by the Rock Identifier community.
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Carnelian Agate
Chalcedony (Silicon Dioxide, SiO2)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Quartz (with Iron staining)
Silicon Dioxide (SiO2)
mineral
Zircon
Zirconium Silicate (ZrSiO₄)
mineral
Blue Quartz (Dumortierite Quartz)
Quartz (SiO2) with inclusions of Dumortierite (Al7(BO3)(SiO4)3O3)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Rhodonite in Quartz Matrix
Rhodonite (Manganese Silicate - (Mn,Fe,Mg,Ca)SiO3)
mineral
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Black Sapphire
Corundum (Al2O3 with inclusions of hematite or ilmenite)
mineral
Rough Ruby
Corundum (Al2O3 with Chromium impurities)
mineral
Clear Quartz
Silicon Dioxide (SiO2) / Rock Crystal
mineral
Quartz Pebble (often referred to as 'Sea Glass' or 'River Stone' when worn smooth)
Silicon Dioxide (SiO2)
mineral
Iolite (Cordierite)
Magnesium Iron Aluminum Silicate (Mg,Fe)2Al4Si5O18
mineral
Red Garnet
Almandine (Fe3Al2(SiO4)3) or Pyrope (Mg3Al2(SiO4)3)
mineral
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
mineral
Sand Grain (Silica/Quartz Grain)
Silicon Dioxide (SiO2)
sedimentary
Sugilite
KNa2(Fe,Mn,Al)2Li3Si12O30 (Potassium Sodium Lithium Iron Manganese Aluminum Silicate)
mineral
Unakite
Unakite (Metasomatized Granite)
metamorphic
Metagabbro / Epidote Gneiss
Epidote bearing Hornblende Gneiss
metamorphic
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz with Hematite Inclusions
Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Iron-stained or Ferruginous)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Mineral
Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
mineral
Serpentine Schist with Quartz Vein
Serpentine Schist (a type of Metamorphic rock). The white band is likely Quartz (SiO2).
Metamorphic
Nuummite
Nuummite (mixture of Anthophyllite and Gedrite)
metamorphic
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with Iron inclusions)
metamorphic
Ruby in Kyanite
Corundum (Al2O3) in Kyanite (Al2SiO5)
metamorphic
Nuummite
Antophyllite-Gedrite (Orthorhombic amphiboles)
metamorphic
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with iron inclusions)
metamorphic
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)
metamorphic
Schist
Mica Schist
metamorphic
Schist
Mica Schist
metamorphic
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Schist
Mica Schist (primarily composed of quartz, feldspar, and mica)
metamorphic
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite (K(Al,Cr)3Si3O10(OH)2)
metamorphic