Aquamarine with Sunstone
Aquamarine (Be3Al2Si6O18), Sunstone (Na,Ca)Al(Si,Al)Si2O8
Mineral
Category
Metamorphic (Likely Gneiss Or Schist Based On Texture)
Browse metamorphic (likely gneiss or schist based on texture) specimens identified by the Rock Identifier community.
Sandstone Beach Pebble
Clastic sedimentary rock (SiO2 with iron oxide cement)
sedimentary
Muscovite Mica
Muscovite - KAl2(AlSi3O10)(OH)2
mineral
Sandstone with Quarzite clasts
Arenite (SiO2 based)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Banded Gneiss with Quartz Vein
Foliated Metamorphic Rock (Gneiss)
metamorphic
Muscovite Schist with Quartz
Mica Schist (KAl2(AlSi3O10)(OH)2)
metamorphic
Sandstone
Arenite (SiO2 based)
sedimentary
Gold Ore in Quartz/Schist
Auriferous Quartz and Sulfide-bearing Schist
Metamorphic/Igneous (Hydrothermal)
Fuchsite
K(Al,Cr)2(AlSi3O10)(OH)2 (Chromium-rich Muscovite)
mineral
Sapphire
Corundum (Al₂O₃) with trace elements causing color variations.
Mineral
Anthracite Coal
Anthracite (Carbon-based metamorphic rock)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Schist
Mica Schist
metamorphic
Greenschist
Greenschist facies rock
Metamorphic
Citrine
Citrine (Silicon Dioxide - SiO2)
mineral
Shungite
Non-crystalline carbon (allotrope of carbon)
metamorphic
Smoky Quartz Cluster
Smoky Quartz (Silicon Dioxide - SiO2)
mineral
Rough Emerald in Matrix
Beryl (Be3Al2Si6O18) with trace Chromium/Vanadium
mineral
Quartz (likely macrocrystalline variety)
Quartz (SiO₂)
Mineral
Orthoclase Feldspar with Quartz
Orthoclase (KAlSi3O8)
mineral
Dragon Stone
Ohko Stone (Argillaceous sedimentary rock)
sedimentary
Grey River Pebble (Likely Quartz-rich or Limestone)
Clastic Sedimentary Rock (typically SiO2 or CaCO3 based)
sedimentary
Anthracite Coal
Anthracite (Carbon based)
metamorphic
Note: This is a Man-Made Object (Costume/Prop Patch)
Synthetic fiber and pigments (Cellulose/Plastic-based composite)
Non-geological
Sandstone
Arenite (SiO2 based)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Fuchsite Gneiss (Green Quartzite)
Chromium-rich Muscovite (KAl2(AlSi3O10)(OH)2 with Cr replacements)
metamorphic
Pebble or Cobble (likely composed of sandstone or conglomerate)
Clastic Sedimentary Rock (specific name like sandstone, conglomerate, or breccia would require microscopic analysis of clast size and angularity)
Sedimentary Rock (possibly a conglomerate or coarse-grained sandstone)
Smoky Quartz (with complementary stones in jewelry setting)
Smoky Quartz (Silicon Dioxide - SiO2)
mineral
Sandstone (River Pebble)
Arenite (SiO2 based)
sedimentary
Orthoclase Feldspar
KAlSi3O8 (Potassium aluminum silicate)
mineral
Orthoclase Feldspar
Potassium Feldspar (KAlSi3O8)
mineral
Sandstone (likely Graywacke or Arkose variant)
Clastic Sedimentary Rock (SiO2 based)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Epidote (likely Unakite component or Epidosite)
Epidote (Ca2(Al2Fe)(SiO4)(Si2O7)O(OH))
metamorphic
Granite Cobble
Phaneritic Felsic Igneous Rock
igneous
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Sandstone (likely Ferruginous)
Sandstone (SiO2 with iron oxides)
sedimentary
Anthracite Coal
Anthracite (Carbon-based metamorphic rock)
metamorphic
Smoky Quartz
Smoky Quartz (Silicon Dioxide, SiO2)
mineral
Schist
Mica Schist
metamorphic