Garnet Rhyolite
Rhyolite (high-silica volcanic rock) with almandine/spessartine garnet
igneous
Category
Sedimentary Or Igneous
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Dalmatian Stone
Dalmatian Jasper (a misnomer for an Aplite with Arfvedsonite spots)
igneous
Dyed Dalmatian Jasper (Dalmatian Stone)
Perthitic Feldspar with Arfvedsonite inclusions
igneous
Dalmatian Jasper
Peralkaline Quartz-Feldspar Igneous Rock
igneous
Banded Sandstone (River Pebble)
Arenite (SiO2 primarily)
sedimentary
Rose Quartz
SiO2 (Silicon Dioxide)
mineral
Greenstone / Epidosite
Metamorphosed Mafic Igneous Rock (Epidote-Chlorite group)
metamorphic
Sandstone
Arenite
Sedimentary
Granite
Phaneritic Felsic Igneous Rock
igneous
Milky Quartz
Quartz (SiO₂)
Mineral
Banded Gneiss (River Rock/Pebble)
Gneiss (specifically a banded variety often found as a river rock)
Metamorphic Rock
Greenschist
Greenschist facies rock
Metamorphic
Carnelian
Chalcedony (cryptocrystalline quartz), SiO2
Mineral
Chert (Jasper)
Silicon Dioxide (SiO2)
sedimentary
Quartz
Quartz (SiO2)
Mineral
Dalmatian Stone
Dalmatian Jasper (Aplitic Perthite)
igneous
Granite
Phaneritic plutonic rock (Quartz, Feldspar, Mica)
igneous
Granite
Granitoid (KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8 + SiO2)
igneous
Dalmatian Stone
Dalmatian Jasper (a misnomer) / Perthitic Feldspar Rock
igneous
Dalmatian Jasper
Dalmatian Stone (a porphyritic peralkaline igneous rock)
igneous
Granite
Granite (Phaneritic Quartz-Feldspar Plutonic Rock)
igneous
Granite
Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica)
igneous
Dalmatian Stone
Peralkaline Quartz-Feldspar Rock
igneous
Dalmatian Jasper (Dalmatian Stone)
Perthitic feldspar with Arfvedsonite inclusions
igneous
Pink Granite
Phaneritic Felsic Igneous Rock (Granite)
igneous
River Cobble (likely Basalt or Mafic Igneous Rock)
Extrusive Mafic Igneous Rock (e.g., Basalt)
igneous
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) within Sedimentary/Metamorphic Matrix
Metamorphic or Igneous (context dependent)
Fossil Coral
Tabulate Coral (potentially Favosites or Calapoecia)
fossil
Gastropod Steinkern (Internal Mold Fossil)
Gastropoda (Class); Internal mold or 'Steinkern' composed of Calcium Carbonate (CaCO3) or Sedimentary matrix
sedimentary
Labradorite (in Larvikite or Gabbro)
Plagioclase Feldspar (containing (Ca, Na)(Al, Si)4O8)
igneous
Granitoid (Granite/Diorite)
Phaneritic Igneous Rock (primarily Quartz, Feldspar, and Mica/Amphiboles)
igneous
Muscovite Mica (Granitic Pegmatite)
Muscovite - KAl2(AlSi3O10)(OH)2
igneous
Granite
Intrusive Igneous Rock (composed of Quartz, Alkali Feldspar, and Plagioclase)
igneous
Chert
Silicon dioxide (SiO2)
sedimentary
Granite
Phaneritic Igneous Rock (Granite)
igneous
Basalt
Extrusive mafic igneous rock
igneous
Breccia Pebble
Sedimentary Breccia
sedimentary
Sandstone Concretion
Sedimentary concretion
Sedimentary
Sandstone or Limestone
Sedimentary Rock
Sedimentary
Peridotite (Olivine/Peridot)
Peridotite (comprising (Mg,Fe)2SiO4)
igneous
Granite
Granite (dominated by Quartz, Alkali Feldspar, and Plagioclase)
igneous
Pink Granite (Potassium-rich)
Phaneritic Felsic Igneous Rock (K-Feldspar Granite)
igneous