Yellow Jasper
Silicon Dioxide (SiO2) with Goethite or Iron Hydroxide inclusions
sedimentary
Category
Mineral (Specifically A Variety Of Chalcedony, Which Is A Cryptocrystalline Quartz)
Browse mineral (specifically a variety of chalcedony, which is a cryptocrystalline quartz) specimens identified by the Rock Identifier community.
Jasper (likely Brecciated or Multi-colored)
Jasper (SiO2)
sedimentary
Chalcedony (Agate/Quartz pebble)
Silicon dioxide (SiO2) - Microcrystalline Quartz
mineral
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Banded Agate
Silicon Dioxide (SiO2) - variety Chalcedony
mineral
Chert (specifically Flint)
Chert (SiO2)
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Banded Agate (Pink/Peach Chalcedony)
Agate (Silicon Dioxide, SiO2)
mineral
Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
mineral
Red Jasper (River Polished)
Silicon Dioxide (SiO2) with Hematite impurities
sedimentary/mineral
Chert (Jasper variety)
Microcrystalline Quartz (SiO2)
sedimentary
Quartz (Milky or White Quartz)
Silicon Dioxide (SiO2)
mineral
Fossilized Wood (Petrified Wood)
Silicified Wood (primarily quartz/chalcedony replacing organic matter)
Sedimentary (with some aspects of mineral replacement)
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Petrified Wood
Silicified wood (principally Silicon Dioxide, SiO2)
sedimentary
Milky Quartz (Water-worn Pebble)
Silicon Dioxide (SiO2)
mineral
Jasper (Cream/Yellow variety)
Silicon Dioxide (SiO2) with impurities
sedimentary
Jasper
Silicon dioxide (SiO2) with impurities
sedimentary
Jasper (specifically Bloodstone or Heliotrope variety)
Silicon Dioxide (SiO2) with iron oxide inclusions
Sedimentary / Mineral
Jasper
Silicon dioxide (SiO2) with iron oxide impurities
sedimentary
Citrine
Quartz (SiO₂)
mineral
Chert (with Desert Varnish/Iron Stain)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Moonstone with Black Tourmaline
Feldspar (KAlSi3O8) with inclusions of Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Yellow Quartz (Chalcedony)
Quartz / Chalcedony (Silicon Dioxide, SiO2)
mineral
Dalmation Stone (frequently called Dalmatian Jasper)
Peralkaline Quartz-Feldspar Rock
igneous
Red Jasper
Jasper (Silicon Dioxide with Iron Oxide inclusions, SiO2)
mineral
Chalcedony (Agate/Chert variety)
Silicon Dioxide (SiO₂)
mineral
Agate (Common Chalcedony)
Silicon Dioxide (SiO2)
mineral
Rose Quartz
Quartz (Silicon Dioxide with trace inclusions of dumortierite, Al7(BO3)(SiO4)3O3)
mineral
Quartz (Raw Chunk)
Silicon Dioxide (SiO2)
mineral
Jasper (Iron-stained Quartzite/Chert)
Silicon Dioxide (SiO2) with iron oxide inclusions
Sedimentary
Bloodstone (Heliotrope)
Silicon Dioxide (SiO2) - Variety of Chalcedony/Jasper
mineral
Jasper
Silicon dioxide (SiO2) with impurities
sedimentary
Milky Quartz with Hematite/Limonite staining
Silicon Dioxide (SiO2)
mineral
Moonstone (Orthoclase Feldspar)
Orthoclase (KAlSi3O8) with Albite (NaAlSi3O8)
mineral
Snakeskin Agate
Cryptocrystalline Quartz (SiO2)
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary