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  • Results for
    • sio2
  • (21)
Quartz scepter, SiO2, from South Africa.
90848648
90848648 Quartz scepter, SiO2, from South Africa.©
Cactus quartz, SiO2, South Africa.
90848633
90848633 Cactus quartz, SiO2, South Africa.©
Obsidian (a volcanic glass) with Cristobalite (SiO2) minerals Sphenoids, Malheur County, Oregon
90848632
90848632 Obsidian (a volcanic glass) with Cristobalite (SiO2) minerals Sphenoids, Malheur County, Oregon©
Geyserite a opaline silica (Silicon dioxide SiO2) from Yellowstone National Park, Wyoming, USA.
90848624
90848624 Geyserite a opaline silica (Silicon dioxide SiO2) from Yellowstone National Park, Wyoming, USA.©
Chalcedony, variety agate (SiO2) from Rio Grande do Sul, Brazil.
90848614
90848614 Chalcedony, variety agate (SiO2) from Rio Grande do Sul, Brazil.©
Smoky Quartz, SiO2 Mount Maloso, Zomba, Malawi
90848561
90848561 Smoky Quartz, SiO2 Mount Maloso, Zomba, Malawi©
Rose Quartz SiO2 from Minas Gerais, Brazil.
90848555
90848555 Rose Quartz SiO2 from Minas Gerais, Brazil.©
Fluorite (CaF2-calcium fluoride) and Galena (PbS - lead sulfide) and Quartz (SiO2 - silicon dioxide) - Blanchard Mine - Portales Tunnel - Socorro County - New Mexico -Fluorite (purple) is one of the m...
90847868
90847868 Fluorite (CaF2-calcium fluoride) and Galena (PbS - lead sulfide) and Quartz (SiO2 - silicon dioxide) - Blanchard Mine - Portales Tunnel - Socorro County - New Mexico -Fluorite (purple) is one of the m...©
Quartz with Chlorite Inclusion (SiO2, silicon dioxide), the most common mineral on Earth with many industrial uses. Sample from Ganesh Mountain, Nepal.
90848216
90848216 Quartz with Chlorite Inclusion (SiO2, silicon dioxide), the most common mineral on Earth with many industrial uses. Sample from Ganesh Mountain, Nepal.©
Galena (PbS, lead sulfide), the primary ore of lead, on Quartz (SiO2), the most common mineral in the Earth's crust. Sample from Madan, Bulgaria.
90848169
90848169 Galena (PbS, lead sulfide), the primary ore of lead, on Quartz (SiO2), the most common mineral in the Earth's crust. Sample from Madan, Bulgaria.©
Red Quartz (SiO2). Sample from Orange River, South Africa.
90848148
90848148 Red Quartz (SiO2). Sample from Orange River, South Africa.©
Doubly terminated crystal of quartz (SiO2, silicon dioxide) with two naturally faceted ends. The most common mineral on earth, used in making glass and other industrial uses. Sutrop, Germany
90848037
90848037 Doubly terminated crystal of quartz (SiO2, silicon dioxide) with two naturally faceted ends. The most common mineral on earth, used in making glass and other industrial uses. Sutrop, Germany©
Spessartine Garnet (Mn3Al2Si3O12) with Smoky Quartz (SiO2) (single crystal) and Feldspar (pink), from Fugian Province, China. Used primarily as a gemstone and as a collector's specimen
90847960
90847960 Spessartine Garnet (Mn3Al2Si3O12) with Smoky Quartz (SiO2) (single crystal) and Feldspar (pink), from Fugian Province, China. Used primarily as a gemstone and as a collector's specimen©
Herkimer Diamond, a double terminated quartz crystal (SiO2 / silicon dioxide) Many industrial uses including glass
90847951
90847951 Herkimer Diamond, a double terminated quartz crystal (SiO2 / silicon dioxide) Many industrial uses including glass©
Calcite crystal on Amethyst. Calcite [Ca Co3 / Calcium Carbonate] one of the most common minerals on Earth. Amethyst [Sio2 / Silicon dioxide] a form of Quartz, the most common mineral on Earth
90847949
90847949 Calcite crystal on Amethyst. Calcite [Ca Co3 / Calcium Carbonate] one of the most common minerals on Earth. Amethyst [Sio2 / Silicon dioxide] a form of Quartz, the most common mineral on Earth©
Quartz crystals [SiO2 / Silicon dioxide] The most common mineral on earth, Many industrial uses including glass
90847945
90847945 Quartz crystals [SiO2 / Silicon dioxide] The most common mineral on earth, Many industrial uses including glass©
Chrysoprase crystals, a form of quartz [SiO2] from Australia, green colour due to impurities of nickel-bearing minerals
90847944
90847944 Chrysoprase crystals, a form of quartz [SiO2] from Australia, green colour due to impurities of nickel-bearing minerals©
Quartz (SiO2 / silicon dioxide) The most common mineral on earth, used in making glass, galena inclusions rare
90847940
90847940 Quartz (SiO2 / silicon dioxide) The most common mineral on earth, used in making glass, galena inclusions rare©
Smokey Quartz or Cairngorm, SiO2, silicon dioxide, from Brazil  -  Graham Eaton/ npl
90092930
90092930 Smokey Quartz or Cairngorm, SiO2, silicon dioxide, from Brazil© Graham Eaton / NPL
Opal, hydrated silica, SiO2?nH2O, from Australia  -  Graham Eaton/ npl
90092929
90092929 Opal, hydrated silica, SiO2?nH2O, from Australia© Graham Eaton / NPL
Quartz (SiO2, silicon dioxide), the most common mineral on earth, used in making glass and other industrial uses.
90848130
90848130 Quartz (SiO2, silicon dioxide), the most common mineral on earth, used in making glass and other industrial uses.©
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