Wonderstone (Banded Rhyolite)
Rhyolite (Silicon Dioxide with Iron Oxide impurities)
igneous
Category
Igneous Or Sedimentary (Anthropogenic Modification)
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Granite Cobble
Phaneritic Felsic Igneous Rock (Granite)
igneous
Granite (Dioritic or Hornblende-rich)
Phaneritic Plutonic Felsic to Intermediate Igneous Rock
igneous
Cobblestones (Basalt/River Rock)
Polished lithic fragments and rounded pebbles
sedimentary
Green Moss Agate / Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz with Iron and Manganese inclusions
sedimentary
River Stone (Chalcedony/Jasper variety)
Microcrystalline Quartz (SiO2)
sedimentary
Jasper (specifically Bloodstone or Heliotrope variety)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Quartz
Quartz (Silicon Dioxide - SiO2)
Mineral
Quartz (likely) / Siliceous rock with quartz phenocrysts (if a rock fragment)
Quartz (SiO₂)
Mineral
Tumbled milky quartz (likely quartz pebble)
Quartz, silicon dioxide (SiO₂)
mineral
White quartz pebble
Quartz (silicon dioxide, SiO₂)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Rock
Silicon Dioxide (SiO2)
mineral
Orange Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Gneiss
Metamorphic Gneiss
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Green Fluorite
Calcium Fluoride (CaF2)
mineral
Quartz (Iron-stained or Chalcedony varieties)
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Hematite
Iron(III) oxide (Fe2O3)
mineral
Green Fluorite
Calcium Fluoride (CaF2)
mineral
Gneiss
Gneiss
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Gneiss
Gneiss
metamorphic
Carnelian / Chalcedony
Cryptocrystalline Quartz (SiO2)
mineral
Gneiss
Gneiss
metamorphic
Greenstone / Graywacke
Metagraywacke or Chlorite Schist
metamorphic
Schist
Mica Schist
metamorphic
Feldspar
KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8
mineral
Clear Quartz Crystal
Quartz (Silicon Dioxide, SiO2)
mineral
Gneiss
Gneiss (Metamorphic Rock)
metamorphic
Quartz (specifically Milky/White Quartz)
Silicon Dioxide (SiO2)
mineral
Fluorite
Fluorite (Calcium Fluoride, CaF2)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Graphite
Graphite (Chemical Formula: C)
Mineral (Native Element)
Specular Hematite (Iron Ore)
Iron(III) oxide (Fe2O3)
mineral