Nephrite Jade
Ca2(Mg, Fe)5Si8O22(OH)2 (Tremolite-Actinolite series)
metamorphic
Category
Metamorphic Or Igneous (Context Dependent)
Browse metamorphic or igneous (context dependent) specimens identified by the Rock Identifier community.
Ruby in Zoisite
Anyolite (Ruby in Zoisite)
metamorphic
Granitic Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Granite Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Biotite (Black Mica)
Biotite - K(Mg,Fe)3(AlSi3O10)(OH)2
mineral
Greenschist / Chloritaform Schist
Chlorite Schist (Group of Silicate Minerals)
metamorphic
Gneiss with Quartz Vein
Gneiss containing Quartz (SiO2) filler
metamorphic
Gneiss (specifically Banded Gneiss)
Gneiss
metamorphic
Nuummite
Nuummite (intergrowth of orthoamphiboles Anthophyllite and Gedrite, (Mg,Fe)7Si8O22(OH)2)
metamorphic
Banded Gneiss
Gneiss
metamorphic
Nephrite Jade
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)
metamorphic
Unakite or Epidosite
Epidosite (Mineral composition: Epidote, Feldspar, and Quartz)
metamorphic
Black Star Diopside (beads)
Diopside (CaMgSi2O6) - a member of the pyroxene group
Mineral
Graphite
Graphite (Chemical Formula: C)
Mineral (Native Element)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Nuummite
Nuummite (Orthoamphibole rock composed of Anthophyllite and Gedrite, (Mg,Fe)7Si8O22(OH)2)
metamorphic
Marble
Metamorphosed Limestone (mainly CaCO3)
metamorphic
Mixed Gemstone Beaded Jewelry
Various minerals (e.g., Quartz varieties like Rose Quartz, Amethyst; Peridot; Garnet; etc.)
Mineral
Dragon Blood Jasper (Lizard Stone/Septarian Chalcedony)
Epidote with Black Hornblende and White Quartz mixture
metamorphic
Pyrite
Iron Sulfide (FeS2)
mineral
Sodalite
Sodalite - Na8(Al6Si6O24)Cl2
mineral
Granitic Gneiss
Gneiss (Metamorphic rock of granitic composition)
metamorphic
Gneiss
Gneiss (High-grade Metamorphic Rock)
metamorphic
Banded Gneiss (with Quartz Vein)
Gneiss (Metamorphic rock of varying mineralogy)
metamorphic
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz (Milky or Cloudy Quartz)
Silicon Dioxide (SiO2)
mineral
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Ruby
Corundum (Al2O3 with Chromium traces)
mineral
Blue Apatite
Apatite - Ca5(PO4)3(F,Cl,OH)
mineral
Citrine Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Black Tourmaline
Schorl (Sodium Iron Aluminum Borosilicate Hydroxide)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Mineral
Quartz (Milky/Clear Quartz)
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Garnet (specifically Almandine or Pyrope)
Almandine: Fe3Al2(SiO4)3 or Pyrope: Mg3Al2(SiO4)3
mineral
Green Aventurine
Silicon Dioxide (Quartz with Fuchsite inclusions), SiO2 + K(Al,Cr)2AlSi3O10(OH)2
mineral