Milky Quartz
Silicon Dioxide (SiO2)
mineral
Category
Igneous Or Sedimentary (Water Worn)
Browse igneous or sedimentary (water worn) specimens identified by the Rock Identifier community.
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Wishing Stone (Basalt or Mudstone with Quartz/Calcite Veins)
Hydrothermally veined Basalt (SiO2/CaCO3 intrusions)
igneous or sedimentary
Jasper Pebble
Silicon dioxide (SiO2) with impurities
sedimentary
Nile Agate
Silicon Dioxide (SiO2)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Fossilized Gastropod Shell
Gastropoda (Fossilized internal mold or shell body)
fossil
Flint / Chert (Beach-worn Pebble)
Microcrystalline quartz (SiO2)
sedimentary
Wishing Stone (Basalt/Greywacke with Quartz Vein)
Basalt or Siltstone with SiO2 (Quartz) hydrothermal intrusion
igneous/sedimentary
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Carnelian
Silicon dioxide (SiO2) with iron oxide impurities
mineral
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
mineral
Brown Chalcedony (Agate/Jasper)
Cryptocrystalline Quartz (SiO2)
mineral
Basalt Pebble
Extrusive Igneous Rock
igneous
Black Beach Pebble / Basalt Pebble
Basalt / Mafic Volcanic Rock
igneous
Greenstone / Basalt
Aphanitic Mafic Igneous Rock (Metabasalt)
igneous
Basalt Pebble
Extrusive Igneous Rock
igneous
Chert with Quartz Vein
Silicon dioxide (SiO2)
sedimentary
River Pebble (Basalt/Greywacke)
Weathered Basalt or Fine-Grained Greywacke
igneous/sedimentary
Milky Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz (Sea Glass or River-worn Pebble style)
Silicon Dioxide (SiO2)
mineral
Jasper
SiO2
sedimentary
Sedimentary Pebble
Sedimentary Rock Fragment
sedimentary
River Cobble (Basaltic/Andesitic)
Mafic Igneous Porphyritic Rock
igneous
Chert (Chalcedony/Agate Pebble)
Cryptocrystalline Silica (SiO2)
sedimentary
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Heart-shaped Pebble (Limestone/Quartz)
Calcium Carbonate (CaCO3) / Silicon Dioxide (SiO2)
sedimentary
Basalt with Quartz Vein
Basalt (extrusive igneous rock) with Quartz (SiO2) inclusion
igneous
Quartz (Iron-stained or Ferruginous Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Granite Gneiss with Garnet
Garnetiferous Gneiss
metamorphic
Jasper
Microcrystalline quartz (SiO2) with impurities
sedimentary
Jasper Pebble
Microcrystalline Quartz (SiO2)
sedimentary
Wishing Stone (Basalt with Quartz Vein)
Basalt with Hydrothermal Quartz Infill (SiO2)
igneous
Chert (Jasper/Chalcedony)
Microcrystalline Quartz (SiO2)
sedimentary
Waterworn Pebble / Quartzite
Metamorphic/Sedimentary rock fragment
sedimentary
Basalt River Stone
Basalt
igneous
Yellow Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Chalcedony (River Pebble)
Silicon Dioxide (SiO2)
mineral
Black Beach Pebble (Basalt / Slate Pebble)
Rounded Fine-Grained Clastic / Igneous Rock Pebble
sedimentary
Wishing Stone (Basalt or Chert with Quartz Veins)
Basalt or microcrystalline Quartz (Chert) with localized hydrothermal Quartz (SiO2) veining
igneous or sedimentary