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    • quartz
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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
01318809
John Cancalosi / 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
Herkimer Diamond (a double terminated quartz crystal) on matrix, from New York state, USA.
01318814
John Cancalosi / Herkimer Diamond (a double terminated quartz crystal) on matrix, from New York state, USA.
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
01318820
John Cancalosi / 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
Smokey Quartz or Cairngorm, SiO2, silicon dioxide, from Brazil
01259901
Graham Eaton / Smokey Quartz or Cairngorm, SiO2, silicon dioxide, from Brazil
Tourmaline crystals in Quartz, Brazil
01260005
Graham Eaton / Tourmaline crystals in Quartz, Brazil
Migratory locust (Schistocerca / Locusta migratoria) hopper on quartz pebble, captive, Surrey, England
01236908
Kim Taylor / Migratory locust (Schistocerca / Locusta migratoria) hopper on quartz pebble, captive, Surrey, England
Lichens growing on rock with a vein of quartz running through it, Minnesota
00125607
Jim Brandenburg / Lichens growing on rock with a vein of quartz running through it, Minnesota
Fragmented Quartz Wester Ross Scotland UK
21098974
Niall Benvie / Fragmented Quartz Wester Ross Scotland UK
Carboniferous shales, mudstones and sandstones with veins of calcite and quartz (with siderite), Crackington Haven, Cornwall, UK. November.
01729452
Adrian Davies / Carboniferous shales, mudstones and sandstones with veins of calcite and quartz (with siderite), Crackington Haven, Cornwall, UK. November.
Carboniferous shales, mudstones and sandstones with veins of calcite and quartz, Crackington Haven, Cornwall, UK. November.
01729451
Adrian Davies / Carboniferous shales, mudstones and sandstones with veins of calcite and quartz, Crackington Haven, Cornwall, UK. November.
Carboniferous shales, mudstones and sandstones with veins of calcite and quartz, Crackington Haven, Cornwall, UK. November.
01729450
Adrian Davies / Carboniferous shales, mudstones and sandstones with veins of calcite and quartz, Crackington Haven, Cornwall, UK. November.
Grey and black slates of the Meadfoot Group striped with quartz veins, Ayrmer Cove, South Hams, Devon, England, UK. January.
01719261
Guy Edwardes / Grey and black slates of the Meadfoot Group striped with quartz veins, Ayrmer Cove, South Hams, Devon, England, UK. January.
Grey and black slates of the Meadfoot Group striped with quartz veins, Ayrmer Cove, South Hams, Devon, England, UK. January.
01719260
Guy Edwardes / Grey and black slates of the Meadfoot Group striped with quartz veins, Ayrmer Cove, South Hams, Devon, England, UK. January.
Grey and black slates of the Meadfoot Group striped with quartz veins, Ayrmer Cove, South Hams, Devon, England, UK. January.
01719259
Guy Edwardes / Grey and black slates of the Meadfoot Group striped with quartz veins, Ayrmer Cove, South Hams, Devon, England, UK. January.
Grey and black slates of the Meadfoot Group striped with quartz veins, Ayrmer Cove, South Hams, Devon, England, UK. January.
01719258
Guy Edwardes / Grey and black slates of the Meadfoot Group striped with quartz veins, Ayrmer Cove, South Hams, Devon, England, UK. January.
Natural patterns in pegmatitic rock, Crackington Haven, Cornwall, England, UK. January.
01719231
Guy Edwardes / Natural patterns in pegmatitic rock, Crackington Haven, Cornwall, England, UK. January.
An en echelon band of tension gashes or cracks in rock. The cracks have become mineral infilled (quartz) with the mineral fibres growing in the direction that the cracks were opened, Abereiddy, Pembro...
01714966
Graham Eaton / An en echelon band of tension gashes or cracks in rock. The cracks have become mineral infilled (quartz) with the mineral fibres growing in the direction that the cracks were opened, Abereiddy, Pembro...
Leesburg limestone conglomerate rock. Fragments of Paleozoic limestone, dolomitic limestone, quartzite, quartz, schist, slate, and greenstone in matrix cemented by calcite formed in a Triassic half-gr...
01664832
John Cancalosi / Leesburg limestone conglomerate rock. Fragments of Paleozoic limestone, dolomitic limestone, quartzite, quartz, schist, slate, and greenstone in matrix cemented by calcite formed in a Triassic half-gr...
Orbicular jasper (cryptocrystalline quartz), also known as 'Ocean Jasper', Madagascar
01646294
John Cancalosi / Orbicular jasper (cryptocrystalline quartz), also known as 'Ocean Jasper', Madagascar
Crystals of Sphalerite (dark colour), Pyrite (golden colour) and Quartz (white colour), Peru
01646293
John Cancalosi / Crystals of Sphalerite (dark colour), Pyrite (golden colour) and Quartz (white colour), Peru
Native Gold on Quartz, Nevada, USA
01646292
John Cancalosi / Native Gold on Quartz, Nevada, USA
Newgrange, Neolithic passage tomb dated to 3 200 BC, white quartz cobblestone revetment and kerbstones, World Heritage Site, County Meath, Republic of Ireland. October 2019.
01643265
Will Watson / Newgrange, Neolithic passage tomb dated to 3 200 BC, white quartz cobblestone revetment and kerbstones, World Heritage Site, County Meath, Republic of Ireland. October 2019.