Latest Quartz Stories
QPL product offerings from PDI increase to design crystals and oscillators for high end military and space customers. Middleton, WI (PRWEB) October 08, 2011
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.
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/cmÂ³. 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,...
- 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.