Citrine
Silicon dioxide (SiO2)
mineral
Category
Carved Stone
Browse carved stone specimens identified by the Rock Identifier community.
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Citrine
Silicon Dioxide (SiO2) with Fe3+ impurities
mineral
Jasper (specifically Red Jasper)
Silicon Dioxide with Iron Oxides (SiO2 + Fe2O3)
sedimentary
Yellow Quartz (Citrine or Iron-Stained Quartz)
Silicon Dioxide (SiO2)
mineral
Citrine
Silicon dioxide (SiO2)
mineral
Stiped Slate Beach Pebble
Low-grade Metamorphic Slate with Quartz Vein (SiO2 on Phyllosilicate base)
metamorphic
Chert (Basanite / Flint)
Microcrystalline silica (SiO2)
sedimentary
Hag Stone
Perforated Flint or Chert
sedimentary
Petoskey Stone
Hexagonaria percarinata (Fossilized Rugose Coral)
sedimentary
Petoskey Stone
Hexagonaria percarinata (Fossilized Rugose Coral)
sedimentary
Petoskey Stone
Hexagonaria percarinata (Fossilized Rugose Coral)
sedimentary
Amazonite
Microcline (variety Amazonite) - K(AlSi3O8)
mineral
Chert (Field Stone)
Chert (SiO2)
sedimentary
Limestone (River Stone)
Calcium Carbonate (CaCO3)
sedimentary
Chert
Microcrystalline Quartz (SiO2)
sedimentary
River Pebble (Basalt / Greywacke)
Stream-rounded fine-grained rock (Basalt / Metagreywacke)
sedimentary
Granite Pebble
Felsic Plutonic Rock
igneous
Wishing Stone (Basalt/Siltstone with Quartz/Calcite vein)
Carbonaceous Siltstone with Quartz (SiO2) or Calcite (CaCO3) vein
sedimentary
Porphyritic Basalt (Flower Stone)
Basalt with Feldspar phenocrysts
igneous
Quartzite Pebble
Metamorphic Rock (mainly Silicon Dioxide, SiO2)
metamorphic
Gneiss (Granitic Gneiss)
Gneiss (composed primarily of Quartz, Feldspar, and Mica/Amphibole)
metamorphic
Wishing Stone with Quartz Veins
Quartzite or Quartz-veined Metamorphic Rock (composed mainly of SiO2)
metamorphic
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Hag Stone
Perforated sedimentary rock (typically limestone, sandstone, or flint)
sedimentary
Tumbled dark stone, likely basalt
Basalt; chiefly plagioclase feldspar, pyroxene, and minor olivine or iron oxides
igneous
Tumbled dark stone, possibly basalt
Basalt; fine-grained mafic rock composed mainly of plagioclase and pyroxene, with possible olivine
igneous
Yellow Quartz Pebble
Silicon Dioxide (SiO2)
Mineral
Gneiss with Quartz Veining
Gneiss (High-grade metamorphic rock)
metamorphic
Unakite
Epidotized Granite
metamorphic
Unakite (Epidosized Granite)
Unakite (composed of Epidote, Orthoclase, and Quartz)
metamorphic
Fossilized Rugose Coral (Petoskey Stone type)
Hexagonaria percarinata (Order: Rugosa)
sedimentary
Basalt (Polished River Stone)
Mafic Volcanic Rock (primarily Plagioclase and Pyroxene)
Igneous
Limestone (Karst formation)
Calcium Carbonate (CaCO3)
sedimentary
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Dalmatian Stone
Dalmatian Jasper (not a true jasper, typically an igneous perthite)
igneous
Polished tree agate (likely)
Chalcedony (microcrystalline SiO₂) with green dendritic/inclusion minerals
mineral
Quartzite (River Stone)
Metamorphic Quartz (SiO2)
metamorphic
Basalt (River Stone)
Basalt (Mafic volcanic rock)
igneous
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Dalmation Stone (Dalmation Jasper)
Peralkaline Rock with Feldspar and Arfvedsonite
igneous
Dalmatian Stone
Dalmatian Stone (formerly called Dalmatian Jasper)
igneous
Fossilized Coral
Rugosa / Scleractinia (Agatized or Calcitized Coral)
fossil