Tetrahedrite, chalcopyrite, pyrite and galena are dominant ore minerals with subordinate amounts of sphalerite, magnetite, malachite and azurite
. Electron microprobe analyses show the pure nature of these ore phases.
The company holds 35% of both the Azurite
and Mer Profond Sud licences.
The best of the azurite
specimens thus far found in the Milpillas mine approach the world's finest in quality and in sheer beauty, with lustrous, mirror-faced crystals of excellent dark blue color.
In the historical department, Rob Sielecki of Ausrox (Rob@crystaluniverse.com.au) devoted the better part of a big showcase at Westward Look to six great clusters of azurite
crystals, collected underground at Tsumeb, Namibia in 1929 by none other than Samuel Gordon of Philadelphia (for the full story see our Tsumeb!
are among the most coveted in the world.
Also in the interesting-small-lots-from-major-localities department, Ivo Szegeny of KARP (www.karp.cz) had a few very nice miniature-size azurite
crystal clusters from the Akche-Spasskiy mine in the great copper mining district of Dzhezkazgan, Kazakhstan.
"The most interesting mineral specimens I collected on this journey," he later wrote, "were the azurite
crystals at a copper mine at Tsumeb in South-West Africa.
Early underground mining encountered fine specimens of native copper, malachite and azurite
but few of these are preserved in collections.
We were also quite happy to discover that a number of our best pieces (brazilianite, Murzinska topaz, Bisbee azurite
, Touissit azurite
, etc.) would be serious competitors for the ikons pictured in Wayne's book, with of course the major difference that they are not (and hopefully will never be!) for sale.
Copper in the Man trenches consists primarily of malachite, azurite
and neotocite oxides, usually on fracture/contact/jointing surfaces, or as disseminations and blebs in host rocks.
Which metal is present in the ores malachite and azurite
KARACHI -- Shipping activity remained brisk at the Port where six ships MSC Esthi, MSC lnes, SBI Tethys, Navig-8 Azurite
, Global Wisdom and New Challenge carrying container, coal, chemicals, and steel coil and mogas were allotted berths at grain and Fertilizer Terminal, Multi-Purpose