Jasper with Agate Inclusions
Jasper (Silicon Dioxide, SiO2) with Chalcedony/Agate
sedimentary
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Amethyst (Tumbled)
Quartz (Silicon Dioxide, SiO2) with iron impurities
mineral
Quartz (Druzy/Macro-crystalline)
Silicon Dioxide (SiO2)
mineral
Granite Pebble
Phaneritic intrusive igneous rock
igneous
Granite
Granite (Felsic Plutonic Rock)
igneous
Breciated Chert
Brecciated Chert (Microcrystalline Quartz, SiO2)
sedimentary
Fulgurite
Fulgurite (Lechatelierite)
metamorphic
Fossiliferous Limestone (Coquina)
Calcite (CaCO3) with Bioclastic inclusions
sedimentary
Sandstone
Arenite
sedimentary
Folded Schist / Gneiss (Metamorphic Rock)
Regional Metaphoric Folded Outcrop (predominantly Schist/Gneiss)
metamorphic
Sandstone
Arenite (SiO2 based)
sedimentary
Schist with Quartz/Mica
Mica Schist (primarily Muscovite and Quartz)
Metamorphic
Amethyst
Crystalline Quartz (SiO2) with iron impurities
mineral
Granite
Granite (Phaneritic intrusive igneous rock)
igneous
Pink Granite
Phaneritic Felsic Igneous Rock (Granite)
igneous
Schist
Crystalline Metamorphic Rock (Schistose)
metamorphic
Moqui Marble (Iron Oxide Concretion)
Iron Oxide Concretion (primarily Limonite/Hematite around a Sandstone center)
sedimentary
Banded Agate
Agate (Cryptocrystalline Quartz, SiO2)
mineral
Carnelian Agate
Carnelian (Silicon Dioxide - SiO2)
mineral
Carnelian
Carnelian (Silicon Dioxide - SiO2)
mineral
Carnelian
Carnelian (Cryptocrystalline Quartz, SiO2)
mineral
Quartz / Quartzite
Silicon Dioxide (SiO2)
Mineral / Metamorphic
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Basalt with Peridotite Xenolith
Mafic Igneous Rock with Peridotite Inclusion (Olivine-rich)
igneous
Sandstone Concretion
Ferruginous Sandstone Concretion
sedimentary
Granite
Phaneritic Plutonic Felsic Rock (SiO2, KAlSi3O8, NaAlSi3O8, CaAl2Si2O8)
igneous
Garnet Schist
Almandine Garnet-Mica Schist (X₃Y₂(SiO₄)₃)
metamorphic
Dalmatian Stone
Peralkaline rhyolite with arfvedsonite (formerly incorrectly called Dalmatian Jasper)
igneous
Glauconitic Sandstone (Greensand)
Glauconite (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2
sedimentary
Granite Pebble (River Rock)
Granite (composed primarily of Quartz, Feldspar, and Mica)
igneous
Coarse Sand Grain / Lithic Fragment
Clastic Sediment (Lithic fragment or Quartz/Feldspar grain)
sedimentary
Oolitic Chert
Silicon Dioxide (SiO2) with Oolitic texture
sedimentary
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Amygdaloidal Basalt
Amygdaloidal Basalt
igneous
Dragon Blood Jasper
SiO2
mineral
Granitic Pegmatite
Granite (with coarse-grained Quartz, Feldspar, and Mica components)
igneous
Shale with Iron Oxide Staining
Fissile Mudstone (primarily clay minerals and quartz)
sedimentary
Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Granite
Phaneritic Felsic Igneous Rock (Granite)
igneous
Sandstone (River Rock)
Arenite (SiO2 principal component)
sedimentary
Porphyritic Basalt (Leopard Palm Stone)
Porphyritic Mafic Volcanic Rock
igneous