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The mineral bastnäsite or bastnaesite is one of a family of three carbonate-fluoride minerals, which includes bastnäsite-(Ce). Bastnäsite is one of the largest sources of cerium and other rare earth elements. Bastnäsite has cerium, lanthanum and yttrium in its generalized formula but officially the mineral is divided into three minerals based on the predominant rare earth element. Mountain Pass, San Bernardino County, California.
Agate stone with quartz geode. Multicolored silica bands colored with metal oxides are visible. Macro photography of the surface of the cut. Origin: Atlas mountains, Morocco.
a rough unrefined gypsum sample with large crystals
Pegmatite rock close up with many crystals.
Macro stone albite mineral on black close up
Fragment of uranium or yellow cake
specimen of natural rough dark green labradorite mineral cutout on white background
Silica Quartz mineralisation around purple fluorite cubic crystals in a mineral rock sample
anatase from Pakistan isolated on white background
Mineral gypsum
Schist is a medium-grade metamorphic rock with medium to large, flat, sheet-like grains in a preferred orientation (nearby grains are roughly parallel). It is defined by having more than 50% platy and elongated minerals, often finely interleaved with quartz and feldspar. These lamellar (flat, planar) minerals include micas, chlorite, talc, hornblende, graphite, and others. Quartz often occurs in drawn-out grains to such an extent that a particular form called quartz schist is produced. Schist is often garnetiferous. Schist forms at a higher temperature and has larger grains than phyllite. Geological foliation (metamorphic arrangement in layers) with medium to large grained flakes in a preferred sheetlike orientation is called schistosity
Magnified close up of porphyritic granite with fledspar.
Big natural stone green amber on white background
sunstone mineral stone sample macro photography
Bismuth is a golden-black mineral. Close-up, background and texture of the mineral.
Natural ecology, stone, rust, texture, background, abstract, plain stone, rock, building material, shape, solid, marble, granite, sea stone, wall, floor, stone wall, color, nature, simplicity
Isolated sample of a Breccia rock
Mineral Fusinus sp. Pliozän
calcite from Rüssingen, Germany isolated on white background
Barite or Barytes is a naturally occuring mineral made of Barium Sulphate and the source of the element Barium. It is white or colourless and crystaline with a distinct heavy density. Mined to be used in paint and paper production and in the oil industry.
Crust of turquoise aurichalcite on rock with secondary copper minerals of various colors from Verkhnii Mine, Dalnegorsk, Russia. Collection mineral isolated on white background
A copper mine ore nugget.
Petrified wood from the Baltic region is not only aesthetically pleasing but also scientifically significant
Piece of natural mineral gemstones in gift store
The stalactites are in wooden trays in an exhibition hall
Layered maroon and light speckled rock magnified.
Axe head from Stone Age, found in a landslide.
Smoky quartz
Oxidized zones of quartz reef deposits, the gold occurs in its metallic state in quartz rock in an Australian gold mine
Galena rock specimen. The raw mineral lead sulphide with a distinct weight and shiny metalic colour in a white matrix of fluorite. The most important ore of lead and a source of silver.
Free Images: "bestof:CalciteAragonite.jpg Image created by Mark A Wilson Department of Geology The College of Wooster http //www wooster edu/geology/MWilson html en wikipedia"
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