Milky Quartz
Silicon Dioxide (SiO2)
mineral
Category
Man Made Glass
Browse man made glass specimens identified by the Rock Identifier community.
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Quartz (Crystal Point/Fragment)
Silicon Dioxide (SiO2)
mineral
Rose Quartz Druzy
Silicon Dioxide (SiO2)
mineral
Quartz (Rose/Pink variety)
Silicon Dioxide (SiO2)
mineral
Citrine or Yellow Quartz
Silicon Dioxide (SiO2) with iron impurities
mineral
Quartz Heart or Arrowhead Shape
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Chert / Flint
Silicon Dioxide (SiO2)
sedimentary
Quartzite Pebble
Metamorphic Quartz (SiO2)
metamorphic
Quartzite Pebble
Metamorphic rock predominantly composed of Quartz (SiO2)
metamorphic
Quartz
Silicon Dioxide (SiO2)
mineral
Quartzite
Quartzite (SiO2)
metamorphic
Slag
Anthropogenic Vitreous Silicate / Ferro-silicate Slag
igneous
Peridot
Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)
mineral
Olivine (Peridot in gem form)
Magnesium Iron Silicate (Mg,Fe)2SiO4
mineral
Peridot
Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)
mineral
Kunzite
Spodumene (LiAlSi2O6)
mineral
Pink Granite
Phaneritic Felsic Igneous Rock
igneous
Limestone
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Halite
Sodium Chloride (NaCl)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Slag (Industrial Glass Slag)
Amorphous Silicate Glass (often containing Al, Ca, Mg, and Ti oxides)
Mineraloid (Industrial byproduct)
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Fluorite (translucent octahedral crystal)
Calcium fluoride (CaF2)
mineral
Diamond (or Cubic Zirconia)
Carbon (C) / Cubic Zirconium Dioxide (ZrO2)
mineral
Red Scoria (Lava Rock)
Scoria (highly vesicular basaltic/andesitic rock)
igneous
Chert / Flint
Microcrystalline Quartz (SiO2)
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (River Pebble)
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Quartzite Pebble
Quartzite
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartzite
Quartzite (Mostly SiO2)
metamorphic
Clear Quartz
Silicon Dioxide (SiO2)
mineral
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