Dalmatian Stone
Peralkaline rhyolite with arfvedsonite (formerly incorrectly called Dalmatian Jasper)
igneous
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Quartzite
Quartzite (mostly SiO2)
metamorphic
Quartzite (Iron-stained)
Quartzite (SiO2)
metamorphic
Quartzite Pebble
Quartzite (SiO2)
metamorphic
Jasper
Silicon dioxide (SiO2)
sedimentary
Dalmatian Jasper / Dalmatian Stone
Peralkaline Rock (Silicon Dioxide with Amphibole inclusions)
igneous
Quartzite with Iron Inclusions
Metamorphosed Quartz Arenite (SiO2)
metamorphic
Yellow Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Red Quartzite
Metamorphic Rock (rich in SiO2 with hematite inclusions)
metamorphic
Red Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Pyrite
Iron Sulfide (FeS2)
mineral
Quartzite
Quartzite (SiO2)
metamorphic
Turquoise (possible Dyed Howlite or Magnesite imitation)
CuAl6(PO4)4(OH)8·4H2O (Turquoise)
mineral
Quartzite
Metamorphic Quartzite (predominantly SiO2)
metamorphic
Fluorite (Polished Point/Tower)
Calcium Fluoride (CaF2)
mineral
Fluorite
Calcium Fluoride (CaF2)
mineral
Yellow Jasper (Iron-stained Quartzite/Chert)
Silicon Dioxide (SiO2) with Hydrated Iron Oxide (Goehite/Limonite) inclusions
sedimentary
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Jasper (Red)
Silicon Dioxide (SiO2)
sedimentary
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Clear Quartz Crystal Cluster
Silicon Dioxide (SiO2)
mineral
Green Fluorite
Calcium Fluoride (CaF2)
mineral
Quartzite
Metamorphosed Sandstone (SiO2)
metamorphic
Chert (Common Opal variant)
Silicon Dioxide (SiO2)
sedimentary
Quartzite (River Stone)
Quartzite (SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
River Quartz Pitting / Quartzite Pebble
Quartzite (primarily SiO2)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Iron Slag
Vitreous glassy waste (Fe-Si-Al-Ca compounds)
Mineral byproduct (anthropogenic / techno-fossil)
Grey Quartzite Pebble
Quartzite (primarily SiO2 - Silicon Dioxide)
metamorphic
Pink Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartzite (specifically an iron-stained or Carnelian-colored variety)
Silicon Dioxide (SiO2) with iron oxide inclusions
metamorphic
Carnelian
Carnelian (a variety of Chalcedony, SiO2) colored by iron oxide
mineral
Carnelian
Carnelian (Silicon Dioxide - SiO2)
mineral
Carnelian
Carnelian (Cryptocrystalline variety of Quartz, SiO2)
mineral
Banded Gneiss
Gneiss
metamorphic
Green Fluorite
Calcium Fluoride (CaF2)
mineral
Basalt Column Section
Columnar Basalt (Mafic Extrusive Igneous Rock)
igneous
Clear Quartz (Rock Crystal)
Quartz (Silicon Dioxide - SiO2)
mineral