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Latest Quartz Stories

2011-10-08 07:00:00

QPL product offerings from PDI increase to design crystals and oscillators for high end military and space customers. Middleton, WI (PRWEB) October 08, 2011

2011-07-28 13:16:00

VANCOUVER, British Columbia, July 28, 2011 /PRNewswire/ -- i-minerals inc. (TSX.V: IMA , US OTC: IMAHF) announces it has received initial results from Dorfner Anzaplan ("Dorfner"), a specialty quartz testing laboratory in Germany.


Latest Quartz Reference Libraries

28_a5eb67134d4fd71497d9b5906bb8a812
2005-05-25 18:55:31

Quartz is the second most abundant mineral in the Earth's crust. It has a hexagonal crystal structure made of trigonal crystallized silica (silicon dioxide, SiO2), with a hardness of 7 on the Mohs scale. Density is 2.6 g/cm³. The typical shape is a six-sided prism that ends in six-sided pyramids, although these are often distorted, or so massive that only part of the shape is apparent from a mined specimen. Additionally a bed is a common form, particularly for varieties such as amethyst,...

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Word of the Day
bretelles
  • In dressmaking, straps running from the belt in front over the shoulders to the belt in the back, with more or less elaboration of trimming and outline. They usually broaden at the shoulder and narrow toward the waist.
The word 'bretelles' comes from a French word meaning 'braces'.