Epidote with Magnetite/Hematite inclusions
Epidote (Ca2(Al2,Fe3+)(SiO4)3(OH)) with Iron Oxides
mineral
Category
Igneous And Sedimentary
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Gneiss (Green Gneiss)
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Gneiss
Gneiss
metamorphic
Gneiss
High-grade Metamorphic Gneiss
metamorphic
Carnelian
Silicon dioxide / Chalcedony (SiO2)
mineral
Gneiss
High-grade regional metamorphic rock (Foliated)
metamorphic
Chalcedony with inclusions (Agate/Quartz)
Silicon Dioxide (SiO2)
mineral
Biotite Gneiss
Gneiss (complex mixture including Biotite K(Mg,Fe)3AlSi3O10(F,OH)2 and Quartz/Feldspar)
metamorphic
Quartz Geode Fragment
Silicon Dioxide (SiO2)
mineral
Chalcedony (Agate/Carnelian precursor)
Chalcedony (Silicon Dioxide, SiO2)
mineral
Specular Hematite
Hematite (Fe2O3)
mineral
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Gneiss
Gneiss
metamorphic
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Druzy Quartz (part of a Geode)
Silicon Dioxide (SiO2)
mineral
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Quartz (Agate/Chalcedony variety)
Silicon Dioxide (SiO2)
mineral
Banded Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Gneiss
Metamorphic Gneiss (High-grade regional metamorphism)
metamorphic
River Rock (likely Gneiss or Quartzite)
Metamorphic rock specimen (potentially Foliated Gneiss)
metamorphic
River Pebble (Gneiss or Granite)
Metamorphic Rock (likely Gneiss or Granitic composition)
metamorphic
Nuummite
Nuummite (Orthoamphibole rock / Anthophyllite-Gedrite blend)
metamorphic
Gneiss
Gneiss
metamorphic
Gneiss
Foliated Metamorphic Gneiss
metamorphic
Gneiss (specifically a water-worn pebble)
Gneiss
metamorphic
Gneiss (Gneissic Granite)
Gneiss
metamorphic
Gneiss
High-grade metamorphic rock (Gneiss)
metamorphic
River Cobble (Gneiss/Schist mix)
Foliated Metamorphic Rock (Gneissic/Schistose)
metamorphic
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Quartz (Druzy/Macro-crystalline)
Silicon Dioxide (SiO2)
mineral
Quartz (Clear Quartz)
Silicon Dioxide (SiO2)
mineral
Banded Gneiss
Gneiss (complex metamorphic silicate rock)
metamorphic
Gneiss
Gneiss
metamorphic
Gneiss
Gneissic Metamorphic Rock
metamorphic
Gneiss
Gneiss
metamorphic
Gneiss
Gneiss
metamorphic
Quartz / Quartz Geode fragment
Silicon Dioxide (SiO2)
mineral
River Pebble (Gneiss or Quartzite mixture)
Metamorphic rock (Commonly Gneissic)
metamorphic
Amethyst
Amethyst (Silicon Dioxide - SiO2 with iron impurities)
mineral
Gneiss Pebble
Gneiss (High-grade metamorphic rock)
metamorphic
Gneiss
Gneiss
metamorphic
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic