Dalmatian Jasper (or Dalmatian Stone)
Dalmatian Stone (A peralkaline felsite composed of feldspar, quartz, and sodic amphibole)
igneous
Category
Sedimentary Or Igneous Fragment
Browse sedimentary or igneous fragment specimens identified by the Rock Identifier community.
Fossilized Shark Teeth
Carcharhiniformes or Lamniformes species (common mineral: Fluorapatite/Ca5(PO4)3F)
sedimentary (fossilized organic matter)
Sandstone
Arenite or Sandstone
Sedimentary Rock
Blue Sapphire
Corundum (Al2O3)
mineral
Quartz (pebble)
Quartz (SiO₂)
Mineral
Calcite
Calcite (CaCO 3)
Mineral
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Chalcedony (Carnelian Agate pebble)
Silicon Dioxide (SiO2)
mineral
Pyrite (Fools Gold)
Iron Sulfide (FeS2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Gneissic River Pebble
Gneiss
metamorphic
Turquoise (possible Dyed Magnesite/Howlite)
CuAl6(PO4)4(OH)8·4H2O
mineral
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Pyrite
Iron Disulfide (FeS2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Amphibolite (specifically Hornblende Schist/Gneiss)
Amphibole-rich Metamorphic Rock
metamorphic
Nuummite
Nuummite (Orthoamphibole rock / Anthophyllite-Gedrite blend)
metamorphic
Banded Agate (Jasper-Agate)
Silicon Dioxide (SiO₂)
Mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Granite Gneiss with Garnet
Garnetiferous Gneiss
metamorphic
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Biotite (Black Mica)
Biotite (K(Mg,Fe)3AlSi3O10(OH)2)
mineral
Gneiss
Gneiss
metamorphic
Gneiss with Quartz Veining
Gneiss (High-grade regional metamorphic rock)
metamorphic
Pyrite
Iron Sulfide (FeS2)
mineral
Gneiss (Banded Gneiss)
Gneiss
metamorphic
Hematite
Iron(III) oxide (Fe2O3)
mineral
Quartz (Clear Quartz/Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Quartz (Milky/Common variant)
Silicon Dioxide (SiO2)
mineral
Magnetite (Lodestone variety)
Magnetite (Iron(II,III) oxide, Fe3O4)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Schist (specifically Chlorite/Greenschist)
Chlorite Schist
metamorphic
Epidote with Magnetite/Hematite inclusions
Epidote (Ca2(Al2,Fe3+)(SiO4)3(OH)) with Iron Oxides
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Blue Calcite
Calcium Carbonate (CaCO3)
mineral
Magnetite / Ironstone
Magnetite (Fe3O4)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite on Quartz
Iron Sulfide (FeS2) on Silicon Dioxide (SiO2)
mineral
Agate Geode
Chalcedony (cryptocrystalline SiO2)
mineral