Ruby Zoisite
Anyolite (Ca2Al3(SiO4)3(OH) + Al2O3:Cr)
Category
Browse mineral with metamorphic or sedimentary host specimens identified by the Rock Identifier community.
Ruby Zoisite
Anyolite (Ca2Al3(SiO4)3(OH) + Al2O3:Cr)
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Metaconglomerate
Protolith: Conglomerate (comprising SiO2, Al2O3, etc.)
Golden Mica Schist
Mica Schist (primarily Muscovite/Biotite with Quartz)
Greenschist
Greenschist (Chlorite Schist)
Greenschist
Greenschist
Greenschist (Greenstone)
Greenschist (Metamorphic rock containing chlorite, actinolite, and epidote)
Quartzite
Quartzite (SiO2)
Gneiss (Banded Gneiss)
Gneiss
Anthracite Coal
Anthracite
Anthracite Coal
Anthracite (Carbon Content: 86%–98%)
Epidote in Basalt
Epidotized Basalt (Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH) in Mafic Igneous Host)
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
Black Tourmaline
Schorl (Na(Fe²⁺)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄)
Anthracite Coal
Anthracite (Carbon-rich metamorphic rock)
Rhodonite
Rhodonite (MnSiO3)
Tiger's Eye and Carnelian Quartz
Silicon Dioxide (SiO2)
Epidote
Epidote Group (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
Quartzite
Quartzite (SiO2)
Aventurine
Aventurine Quartz (SiO2)
Peacock Ore
Bornite (Cu5FeS4) or Chalcopyrite (CuFeS2) with iridescent tarnish
Greenschist (Greenstone)
Chlorite Schist / Greenschist Facies Rock
Anthracite Coal
Anthracite (Carbon-based organic sedimentary rock transitioned to metamorphic)
Mica Schist
Mica Schist (primarily Muscovite or Biotite)
Chrysoprase
Chalcedony (cryptocrystalline quartz) with nickel inclusions; SiO2
Greenstone (Epidote/Chlorite Rich Rock)
Metabasalt (often contains Epidote Ca2Al2(Fe3+;Al)(SiO4)(Si2O7)O(OH))
Quartz Vein / Milky Quartz
Silicon Dioxide (SiO2)
Black Tourmaline
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
Yellow Quartzite or Yellow Jasper
Quartzite (primarily SiO2 with Iron oxide staining)
Quartzite River Rock
Quartzite (primarily SiO2)
General Gravel (River Rock/River Stones)
Mixed Lithic Sediments (Conglomerate Clasts)
Red Jasper
Jasper (Silicon Dioxide with Iron Oxide inclusions, SiO2)
Schist
Mica Schist
Tiger's Eye (Rough)
Pseudomorph of Quartz after Crocidolite (SiO2)
Epidote (likely Unakite component or Epidosite)
Epidote (Ca2(Al2Fe)(SiO4)(Si2O7)O(OH))
Rutile in Quartz (Rutilated Quartz)
SiO2 with TiO2 inclusions
Hematite (beads)
Hematite (Fe₂O₃)
Marble
Recrystallized Calcite (CaCO3)
Anthracite Coal
Anthracite (Carbon-rich metamorphic coal)
Quartzite
Quartzite (consisting primarily of SiO2)
Mixed collection of minerals and rocks (Jasper, Carnelian, Granite, and Quartz)
Silicon Dioxide (SiO2) with varying impurities for silicates and igneous aggregates
Anthracite Coal
Anthracite