Likely quartz-rich pebble
Quartz (silicon dioxide, SiO₂), possibly a quartzite fragment
Category
Browse metamorphic rock (variety of quartz) specimens identified by the Rock Identifier community.
Likely quartz-rich pebble
Quartz (silicon dioxide, SiO₂), possibly a quartzite fragment
Clear Quartz Crystal
Quartz (Silicon Dioxide - SiO2)
Mixed Tumbled Gemstones and River Rocks
Mixed Decorative Stones (predominantly Silicon Dioxide - SiO2 variants)
Green Aventurine
Quartz (Silicon Dioxide, SiO2) with fuchsite inclusions
Quartz (Milky/Common)
Quartz (Silicon Dioxide, SiO2)
Milky Quartz (Crystal Cluster)
Silicon Dioxide (SiO2) - Quartz Variety
Milky Quartz
Silicon Dioxide (SiO2)
Quartzite
Metamorphic Quartz (SiO2)
Yellow Aventurine
Quartz (SiO2) with inclusions
Green Aventurine
Quartz variety (SiO2 with inclusions)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Milky/Crystal Variety)
Silicon Dioxide (SiO2)
Corundum (Sapphire in Host Rock)
Corundum (Aluminum Oxide, Al2O3)
Quartzite (Iron-stained)
Quartzite (SiO2 with Fe2O3 staining)
Tumbled quartz-rich pebble
Quartz (SiO₂), likely with iron-oxide staining and minor inclusions
Quartz Pebble
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz with Oxides
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Tumbled yellow jasper
Microcrystalline quartz (chalcedony), SiO₂, colored by iron oxides
Milky Quartz
Silicon Dioxide (SiO2)
Tumbled quartz pebble (likely milky quartz or chalcedony)
Quartz, SiO₂; possibly microcrystalline quartz (chalcedony)
Milky Quartz
Silicon Dioxide (SiO2)
Yellow Quartz
Silicon Dioxide (SiO2)
Quartz on Host Rock
Silicon Dioxide (SiO2)
Tumbled yellow jasper or iron-stained quartzite
Microcrystalline quartz (SiO₂), likely jasper/quartzite with iron-oxide staining
Milky Quartz
Silicon Dioxide (SiO2)
Polished brecciated jasper
Jasper (microcrystalline quartz, SiO₂), likely brecciated and iron-stained
Quartzite (specifically Milky Quartz variety)
Quartz (SiO2)
Tumbled milky quartz pebble
Quartz (silicon dioxide, SiO₂)
Milky Quartz
Quartz / Silicon Dioxide (SiO2)
Milky quartz vein fragment
Quartz (silicon dioxide, SiO₂), massive or granular variety
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (likely Yellow/Orange variety, possibly Citrine or Chalcedony with iron staining)
Quartz (SiO₂)
Small quartz-rich stone, possibly iron-stained quartz or jasper
Quartz (SiO₂), potentially with iron-oxide inclusions
Mixed Rock Collection (Pebbles and Stones)
Various geological specimens
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Fuchsite
K(Al,Cr)2(AlSi3)O10(OH)2
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Polished brecciated jasper
Silica-rich microcrystalline quartz/chalcedony (SiO₂), with iron-oxide staining and angular mineral fragments