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Latest Pegmatite Stories

2011-07-21 14:22:00

TSX:EMC www.emcmetals.com VANCOUVER, July 21, 2011 /PRNewswire/ - EMC Metals Corp.

2011-01-13 13:18:00

(PRZCF.OTCBB)                         (TSXV.GR) VANCOUVER, Jan. 13 /PRNewswire/ - GREENLIGHT RESOURCES INC. (TSXV.GR), announces that the prospecting team has once again been mobilized to the Brazil Lake Lithium Property.

2010-10-28 08:00:00

(PRZCF.OTCBB)  (PH0.FRANKFURT)                    (TSXV.GR) VANCOUVER, Oct. 28 /PRNewswire/ - GREENLIGHT RESOURCES INC.


Latest Pegmatite Reference Libraries

28_adf4824da8675c1f5b7981afba7891b5
2005-05-26 12:08:48

The mineral beryl is a beryllium aluminium cyclosilicate with the chemical formula Be3Al2(SiO3)6. The hexagonal crystals of beryl may be very small or range to several meters in size. Terminated crystals are relatively rare. Beryl exhibits conchoidal fracture, has a hardness of 7.5-8, a specific gravity of 2.63-2.80. It has a vitreous lustre and can be transparent or translucent. Its cleavage is poor basal and its habit is dihexagonal bipyramidal. Pure beryl is colorless, but it is frequently...

28_e9750264d5476c85f9be09d17bc6fd51
2005-05-26 12:03:39

Biotite is a common phyllosilicate mineral that contains potassium, magnesium, iron and aluminium. It is sometimes called "iron mica" and is found in granitic rocks, gneisses, and schists. Like other mica minerals, biotite has a highly perfect basal cleavage, its flexible sheets easily flaking off. It has a hardness of 2.5 - 3, a specific gravity of 2.7 - 3.1, is colored greenish to brown or black, and can be transparent to opaque. Biotite is occasionally found in large sheets, especially in...

28_d19b1036a06db1312a46433974353efe
2005-05-25 11:15:23

The mineral tourmaline is chemically one of the most complicated silicate minerals. It is a complex silicate of aluminium and boron but because of isomorphous replacement (solid solution) its composition varies widely with iron, magnesium and lithium and other elements entering into the combination to a greater or lesser extent. Tourmaline belongs to the trigonal crystal system and occurs as long, slender to thick prismatic and columnar crystals that are usually triangular in...

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Word of the Day
swell-mobsman
  • A member of the swell-mob; a genteelly clad pickpocket. Sometimes mobsman.
Use of the word 'swell-mobsman' dates at least to the early 1800s.