Unakite
Epidotized Granite
metamorphic
Category
Metamorphic Or Sedimentary (With Staining)
Browse metamorphic or sedimentary (with staining) specimens identified by the Rock Identifier community.
Rough Citrine Quartz
Silicon Dioxide (SiO2) with ferric iron impurities
mineral
Green Quartzite (River Stone)
Metamorphic Quartz (SiO2) with inclusions (typically Fuchsite or Chlorite)
metamorphic
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Fuchsite on Quartz
Muscovite (KAl2(AlSi3O10)(OH)2) with Chromium impurities
metamorphic
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz with inclusions (likely Tourmaline or Biotite)
Silicon Dioxide (SiO2)
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Wishing Stone
Greenschist or Basalt with Quartz/Calcite Vein
metamorphic
Moonstone (Feldspar)
Orthoclase feldspar, (K,Na)AlSi3O8
mineral
Rough Star Sapphire (Corundum)
Al2O3 (Aluminum Oxide)
mineral
Emerald in Matrix
Beryllium Aluminum Silicate (Be3Al2Si6O18) with Chromium/Vanadium impurities
mineral
Banded Agate (Onyx Variety)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
mineral
Quartz / Calcite Vein Rock
Silicon Dioxide (SiO2) or Calcium Carbonate (CaCO3)
mineral
Quartzite
Quartzite (primarily SiO2)
metamorphic
Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite
mineral
Ruby in Fuchsite
Corundum (Al2O3) in Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)
metamorphic
Serpentine
Serpentinite (group of minerals including Antigorite, Lizardite, or Chrysotile) (Mg, Fe)3Si2O5(OH)4
metamorphic
Lake Superior Agate
Banded Chalcedony (SiO2)
mineral
Staurolite (Cross Stone)
Staurolite (Fe2+2Al9Si4O23(OH))
metamorphic
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Carnelian Agate
Silicon Dioxide (SiO2) with iron oxide inclusions
mineral
Agate (Banded Chalcedony)
Agate (Silicon Dioxide, SiO2)
mineral
Moonstone (Tumbled)
Orthoclase Feldspar (KAlSi3O8) with inclusions of Albite
mineral
Gold Ore in Quartz
Native Gold (Au) in Quartz (SiO2)
mineral
Moonstone
Adularia / Orthoclase (KAlSi3O8)
mineral
Slate
Slate (foliated metamorphic rock rich in quartz, sericite, and chlorite)
metamorphic
Grey Agate
Silicon Dioxide (SiO2) - Variety of Chalcedony
mineral
Quartz (Milky or Iron-Stained)
Silicon Dioxide (SiO2)
mineral
Quartzite
Metamorphosed Quartz Sandstone
metamorphic
Milky Quartz (Water-worn Pebble)
Quartz (Silicon Dioxide) - SiO2
mineral
Green Aventurine (Tumbled Quartzite)
Silicon Dioxide (SiO2) with inclusions of Fuchsite
metamorphic
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Green Adventurine
SiO2 (Silicon Dioxide with inclusions of Fuchsite mica)
mineral
Dragon Blood Jasper (Epidote with Piedmontite or Quartz)
Epidote-rich Quartzite / SiO2 with (Ca2(Al2,Fe)(Si2O7)(SiO4)O(OH))
metamorphic
Prehnite
Prehnite - Ca2Al(AlSi3O10)(OH)2
mineral
Tanzanite
Blue-violet Zoisite (Ca2Al3(SiO4)3(OH))
mineral
Blue Sapphire
Corundum (Al2O3 with trace Titanium and Iron)
mineral
Ruby (Corundum)
Al2O3 (Aluminium oxide with Chromium impurities)
Mineral
Banded Agate (Pink/Peach Chalcedony)
Agate (Silicon Dioxide, SiO2)
mineral
Chlorite Included Quartz
Silicon Dioxide (SiO2) with Chlorite (Mg,Fe,Li)6AlSi3O10(OH)8
mineral