Shale
Shale
Category
Browse mixed: igneous and sedimentary specimens identified by the Rock Identifier community.
Shale
Shale
Brick
Fired clay or Ceramic material (no specific mineralogical scientific name as it's a composite)
Chalcedony (or a variety of Chalcedony, likely Agate or Jasper)
Chalcedony (SiO₂)
Quartz (various varieties)
SiO₂ (Silicon Dioxide)
River Pebbles (Stream-rounded rocks)
Fluvial Detritus (varied mineralogy)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Fancy Jasper
Chalcedony (cryptocrystalline quartz) with inclusions
Botryoidal Chalcedony
Chalcedony (SiO2)
Magnetite
Iron(II,III) oxide (Fe3O4)
Milky Quartz
Quartz (SiO2)
Blue Apatite
Apatite (Group), Ca5(PO4)3(F,Cl,OH)
Pyrite
Iron Sulfide (FeS2)
Diorite (Dalmatian Stone)
Phaneritic Plutonic Diorite
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Dalmation Stone (often called Dalmatian Jasper)
Peralkaline Rock (Microgranite/Aplite), SiO2 with inclusions of Arfvedsonite
Ruby in Zoisite
Ruby (α-Al2O3) embedded in Zoisite (Ca2Al3(SiO4)3(OH)) with some Hornblende
Epidote in Quartz
Quartz with Epidote inclusions (SiO2 with Ca2(Al,Fe)3(SiO4)3(OH) inclusions)
Quartz (beads)
SiO2 (Silicon Dioxide)
Magnetite / Iron Ore
Magnetite (Fe3O4)
Magnetite (Iron Ore)
Magnetite (Fe3O4)
Quartz
Quartz (SiO₂)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz (Rock Crystal)
Quartz (SiO₂ - Silicon Dioxide)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Magnetite (potentially Hematite-rich)
Magnetite (Fe3O4)
Magnetite Orthorthotropic Rock
Magnetite (Fe3O4)
Magnetite (Iron Ore)
Magnetite (Fe3O4)
Pyrite
Iron Sulfide (FeS2)
Druzy Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Quartz (Milky/Common Quartz)
Silicon Dioxide (SiO2)
Pyrite in Matrix (Fool's Gold)
Iron Sulfide (FeS2)
Pyrite
Iron Sulfide (FeS2)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Dalmation Stone
Peralkaline Rock (SiO2 with Arfvedsonite)
Ocean Jasper
Silicon Dioxide (SiO2) with various inclusions