Ilmenite is an economically important and interesting mineral. It is named for its place of discovery (such places are called type localities) at Ilmen Lake in the ...
Sapphire is one of the two gem-varieties of corundum, the other being ruby (defined as corundum in a shade of red). Although blue is the best-known sapphire color ...
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The Executive team is structured to include seven senior executives, reporting to the Managing Director and Chief Executive Officer. The responsibilities of the ...
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Detailed gem and jewelry information guide about the gemstone zircon: information & pictures.
Zircon Mining. Zircon has been mined from stream gravels for over 2000 years. This early mining of zircon was mainly to obtain nice crystals for use as gemstones.
List of minerals illustrated sorted by size at John Betts Fine Minerals, mineral dealer in New York, NY. Sorted by mineral species linked to high quality photographs.
Detailed gem and jewelry information guide about the gemstone topaz: information & pictures.
Monazite Mining. All monazite mining is focused on placer deposits because they are easier to mine and the monazite is often present in higher concentrations than in ...
India. India has long been synonymous with gemstones. Beryls, pearls, carnelians and Golconda's storied diamonds were but a few of the precious substances ...
chemical properties, health and environmental effects of zirconium
GEOLOGY 115. OPTICAL PROPERITES OF GEMS. Optical properties are those which are related to the behavior of light, on, or in, a gemstone. Some of these can be seen ...
The company is the major producer of zircon globally and a large producer of the high-grade titanium dioxide products of rutile and synthetic rutile, with operations ...
Buy 3.4ct Natural Red Orange Sapphire from Tanzania. 5 x 4 mm Pear Facet quality loose gemstones for jewelry from GemSelect.
Zirconium is a chemical element with symbol Zr and atomic number 40. The name zirconium is taken from the name of the mineral zircon, the most important source of ...
Emerald gemstones at mineralminers: your on-line link direct to the emerald mines and gemstone lapidary shops for natural Colombian emerald gemstones and for ...
Spinel gemstones at mineralminers: your on-line link direct to the natural spinel mines and lapidary shops for natural color red spinel gems, natural color pink ...
Spinel gemstones at mineralminers: your on-line link direct to the natural spinel mines and lapidary shops for natural color red spinel gems, natural color pink ...
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Le saphir, avec sa dureté Mohs de 9, la seconde seulement après le diamant, est l'une des pierres précieuses les plus désirables de toutes. Achetez les saphir les ...
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The very latest breaking minerals, metals, steel and ferroalloy market news, prices, expert analysis, import and export data, suppliers and buyers.