Clear Quartz
Silicon Dioxide (SiO2)
mineral
Category
Man Made Glass
Browse man made glass specimens identified by the Rock Identifier community.
Learn about Man Made Glass in the encyclopedia
View all →
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
mineral
Iron-stained Quartz
Silicon Dioxide (SiO2) with iron oxide inclusions
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartzite (River Stone)
Quartzite (mainly SiO2 with iron oxide staining)
metamorphic
Quartz (Vein Quartz)
Silicon Dioxide (SiO2)
mineral
Quartzite
Metamorphosed Quartz Sandstone
metamorphic
Quartz (Druzy)
Silicon Dioxide (SiO2)
mineral
Quartz with Mica/Host Rock
Silicon Dioxide (SiO2) with Phyllosilicates
mineral
Fluorite with Quartz
Fluorite (CaF2) and Quartz (SiO2)
mineral
Milky Quartz (with Chlorite/Mineral Inclusions)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Citrine
Silicon Dioxide (SiO2)
mineral
Sandstone
Arenite
sedimentary
Diamond (or Diamond Simulant)
Carbon (C) or Zirconium dioxide (ZrO2) for CZ
gemstone
Quartzite River Rock
Quartzite (SiO2)
metamorphic
Quartzite Pebble
Quartzite (SiO2)
metamorphic
Quartz (Iron-stained or Milky)
Silicon Dioxide (SiO2)
mineral
Obsidian
Volcanic glass (SiO2-rich amorphous silicate)
igneous
Feldspar
KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8
mineral
Quartz (Milky Quartz/Citrine Type)
Silicon Dioxide (SiO2)
mineral
Quartz (Chalcedony)
Silicon Dioxide (SiO2)
mineral
Quartz (Tumbled/Polished Pebble)
Silicon Dioxide (SiO2)
mineral
Milky Quartz Pebbles
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Crystalline Silicon Dioxide (SiO2)
mineral
Quartz (River Pebble)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartzite Pebble
Metamorphic Quartzite (SiO2)
metamorphic
Obsidian
Amorphous volcanic glass (SiO2)
igneous
Chert / Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Banded Agate
Agate (chalcedony variety of Silicon Dioxide, SiO2)
mineral
Jasper
Jasper (SiO2)
sedimentary
Fluorite
Calcium Fluoride (CaF2)
mineral
Fluorite
Calcium Fluoride (CaF2)
mineral
Fluorite
Calcium fluoride (CaF2)
mineral
Fluorite
Calcium Fluoride (CaF2)
mineral
Fluorite
Fluorite (Calcium Fluoride, CaF2)
mineral
Green Fluorite
Fluorite (Calcium Fluoride, CaF2)
mineral
Green Fluorite
Calcium Fluoride (CaF2)
mineral
Obsidian (Apache Tear)
Amorphous Volcanic Glass (SiO2 + impurities)
igneous
Hematoid Quartz
Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3)
mineral