Gneiss
Gneiss
metamorphic
Category
Sedimentary Or Igneous Fragment
Browse sedimentary or igneous fragment specimens identified by the Rock Identifier community.
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Potassium Feldspar
Orthoclase (KAlSi3O8)
mineral
Pyrite (Cube variety)
Iron Sulfide (FeS2)
mineral
Clear Quartz (Rock Crystal)
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Milky Quartz (Vein Quartz)
Silicon Dioxide (SiO2)
mineral
Galena
Lead Sulfide (PbS)
mineral
Hematite (Iron Ore)
Hematite (Fe2O3)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Quartz (Milky or White Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz (Milky/Crystal variety)
Silicon Dioxide (SiO2)
mineral
Quartz Druzy (on Calcedony/Quartz base)
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Gneiss
Gneiss
metamorphic
Banded Gneiss (with Quartz Vein)
Gneiss (Metamorphic rock of varying mineralogy)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Jasper
Silicon dioxide (SiO2)
sedimentary
General Gravel (River Rock/River Stones)
Mixed Lithic Sediments (Conglomerate Clasts)
sedimentary
Red Quartz
Silicon Dioxide (SiO2) with Hematite inclusions
mineral
Ruby
Corundum (Al2O3) with Chromium traces
mineral
Quartz Geode (Nodule)
Silicon Dioxide (SiO2)
sedimentary or igneous
Lava Stone and Chakra Beads
Basalt (with various mineral/synthetic beads)
igneous
Dalmatian Jasper (Dalmatian Stone)
Peralkaline rhyolite
igneous
Rough Dark Green Sapphire
Corundum (Al2O3)
mineral
Shale or Argillite
Shale (fine-grained clastic sedimentary rock) or Argillite (low-grade metamorphic rock derived from shale)
Sedimentary or Metamorphic (low grade)
Red Jasper (Opaque Chalcedony)
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Hematite
Hematite (Iron(III) oxide, Fe2O3)
mineral
Granitic Gneiss
Gneiss (Metamorphic rock of granitic composition)
metamorphic
Yellow Jade (Yellow Chalcedony/Quartz)
Silicon Dioxide (SiO2)
mineral
Banded Agate (Agatized Geode Slice)
Silicon Dioxide (SiO₂)
mineral
Dendritic Agate
Silicon Dioxide (SiO2) with manganese/iron inclusions
mineral
Quartz (Milky or Smoky Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz (Milky/Bull Quartz)
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Quartz (Milky/Clear)
Silicon Dioxide (SiO2)
mineral
Rainbow Fluorite
Fluorite (Calcium Fluoride, CaF2)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral