Quartz (Iron-stained or Rose variant)
Silicon Dioxide (SiO2)
mineral
Category
Man Made Mineral Simulant (Glass)
Browse man made mineral simulant (glass) specimens identified by the Rock Identifier community.
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Quartz (Grain/Pebble)
Silicon Dioxide (SiO2)
mineral
Yellow Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone
Sandstone (SiO2 rich)
sedimentary
Rounded quartz-rich pebble
Likely milky quartz (SiO₂), possibly quartzite or a quartz-rich river pebble
mineral
Quartz with Iron Staining and Chlorite Inclusions
Silicon Dioxide (SiO2)
mineral
Polished rose quartz
Rose quartz (quartz), SiO₂
mineral
Lepidolite
K(Li,Al)_3(Si,Al)_4O_10(F,OH)_2 (Lithium-bearing Mica)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Celestine (or Celestite)
Strontium sulfate (SrSO4)
mineral
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Citrine
Quartz (Silicon Dioxide - SiO2)
mineral
Amethyst (Rose de France)
Silicon Dioxide (SiO2) with iron impurities
mineral
Sandstone
Sedimentary rock composed mainly of quartz sand
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Sandstone (likely Quartz Sandstone)
Arenite (composed primarily of SiO2)
sedimentary
Polished orbicular jasper
Silica-rich microcrystalline quartz/chalcedony (SiO₂), with iron oxides and green alteration minerals
mineral
Polished ocean jasper or orbicular chalcedony
Microcrystalline quartz (SiO₂), likely chalcedony with feldspar or other mineral inclusions
mineral
Red Sandstone
Arenite (Ferruginous Sandstone)
sedimentary
Pink-and-green quartz-rich rock, likely rose quartz with epidote/serpentine
Quartz (SiO₂), variably colored by iron, with possible epidote, chlorite, or serpentine inclusions
mineral
Clear Quartz (Tumbled)
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz / Rock Crystal
Silicon Dioxide (SiO2)
mineral
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz Mineral
Silicon Dioxide (SiO2)
mineral
Quartz (White/Milky)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Feldspar-rich Pegmatite
Granitic Pegmatite (principally KAlSi3O8)
igneous
Basalt and Quartz Pebble
Basalt (Igneous) and Quartzite/Quartz (SiO2) pebble
igneous and sedimentary
Reddish-brown rounded pebble, likely iron-stained sandstone or chert
Probable quartz-rich sandstone (SiO₂), possibly ferruginous chert; exact identification requires testing
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Chert (often called Flint or Jasper based on color)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Polished/tumbled jasper
Jasper, microcrystalline quartz (SiO₂) with iron-oxide and other mineral impurities
mineral
Leopard Skin Jasper
Silicified Rhyolite or Orbicular Jasper (SiO2)
sedimentary
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Obsidian
Volcanic Glass (SiO2 rich)
Igneous
Sandstone
Sedimentary rock composed mainly of sand-sized minerals or rock grains
sedimentary
Sandstone
Arenite
sedimentary
Sandstone (Quartzose)
Arenite (primarily SiO2)
sedimentary
Quartz-bearing altered rock, possibly iron-stained quartz vein
Quartz (SiO₂) in a feldspathic/sericitized host, with iron-oxide staining
mineral