Rhodonite
Rhodonite (Manganese Iron Magnesium Calcium Silicate - (Mn,Fe,Mg,Ca)SiO3)
mineral
Category
Mineral In Metamorphic Rock
Browse mineral in metamorphic rock specimens identified by the Rock Identifier community.
Blue Aventurine
Silicon Dioxide (SiO2) with inclusions of Dumortierite
Mineral (silicate variety)
Orthoclase Feldspar (Twinning Specimen)
Orthoclase (KAlSi3O8)
mineral
Quartz (Druzy)
Silicon Dioxide (SiO2)
mineral
Epidote (with Quartz and Feldspar)
Epidote (unakalite/unite), Ca2(Al2Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Quartzite (river pebble) and Gabbro (crushed rock)
Quartzite (metamorphosed Quartz Sandstone, SiO2) and Gabbro (Plagioclase-Clinopyroxene rock)
Metamorphic and Igneous
Jadeite (variety of Jade)
Jadeite, NaAlSi₂O₆
metamorphic
Pyrite on Limestone
Iron Disulfide (FeS2) in Calcium Carbonate (CaCO3) matrix
sedimentary (matrix) / mineral (inclusion)
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Greenstone / Glauconitic Siltstone
Metabasalt or Glauconite-rich Sedimentary Rock
metamorphic or sedimentary
Granite
Granite (a plutonic rock)
Igneous
Amethyst (Chevron or Banded Amethyst)
Silicon Dioxide (SiO2) with trace Iron (Fe)
mineral
Greenschist
Chlorite schist
metamorphic
Sandstone (Banded)
Clastic Sedimentary Rock: Arenite
sedimentary
Epidote with Magnetite/Hematite inclusions
Epidote (Ca2(Al2,Fe3+)(SiO4)3(OH)) with Iron Oxides
mineral
Moonstone
Orthoclase Feldspar ((K,Na)AlSi3O8)
mineral
Citrine
Silicon dioxide (SiO2)
mineral
Rhodonite
(Mn,Fe,Mg,Ca)SiO3
mineral
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
mineral
Greenschist
Greenschist (composed of Chlorite, Actinolite, and Epidote)
metamorphic
Blue Quartzite
Quartzite (silicon dioxide, SiO2)
metamorphic
Blue Quartz (Dumortierite Quartz)
Silicon Dioxide with Aluminum Borosilicate (SiO2 + AlAl6BSi3O18)
metamorphic
Zoisite with Ruby
Anyolite (Ca2Al3(SiO4)3(OH) with Al2O3:Cr)
metamorphic
Unable to Identify (Image Obscured)
Indeterminate
Metallic Ornament / Jewelry
N/A - This is an artificial object, not a geological specimen.
This appears to be a man-made metallic object, likely jewelry, not a natural rock, mineral, or geological specimen.
Sapphirine in Magnesian Schist
Sapphirine: (Mg,Al)8(Al,Si)6O20
metamorphic
Tiger's Eye
Tiger's eye (Pseudomorph of Quartz after Crocidolite), SiO2
metamorphic
Note regarding image quality
Indeterminate
Epidote (Unakite variety)
Epidosite (Metasomatic rock containing Ca2(Al,Fe)3(SiO4)3(OH))
metamorphic
Quartzite Pebble (River Rock)
Quartzite (primarily SiO2)
metamorphic
Quartzite Pebble (River Rock)
Quartzite (SiO2)
metamorphic
Greenschist
Greenschist (comprising Actinolite, Chlorite, and Epidote)
metamorphic
Quartz in Basalt (Xenocryst)
Silicon Dioxide (SiO2) in Mafic Igneous Volcanic Rock
Igneous
Blue Apatite
Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)
mineral
Vesicular Basalt with Quartz/Chalcedony
Vesicular Basalt (primarily Plagioclase, Pyroxene, and Olivine with SiO2 infill)
igneous
![Lapis Lazuli (Lapis Lazuli (a rock type, not a single mineral; main component is Lazurite (Na,Ca)8[(S,Cl,SO4,OH)2|(Al6Si6O24)])) — Metamorphic Rock (primarily composed of minerals)](https://media.rockidentification.com/b697ae67-2efa-42bf-8d6c-70c23f91ec13-thumbnail.jpg)
Lapis Lazuli
Lapis Lazuli (a rock type, not a single mineral; main component is Lazurite (Na,Ca)8[(S,Cl,SO4,OH)2|(Al6Si6O24)])
Metamorphic Rock (primarily composed of minerals)
Ruby
Corundum (Al2O3 with Chromium traces)
mineral
Amazonite
Potassium Aluminum Silicate (KAlSi3O8)
mineral
Basalt with Quartz Veining
Basalt (Mafic Extrusive Igneous Rock) with SiO2 (Silicon Dioxide) veins
igneous
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite (mica)
Mineral (variety of Quartz)
Quartz-Veined Mudstone
Argillaceous Mudstone with Quartz Veining
sedimentary
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral