Alaskite

alaskite

[ə′las‚kīt]
(petrology)
A granitic rock composed mainly of quartz and alkali feldspar, with few dark mineral components.

Alaskite

 

an abyssal, granitic rock of magmatic, sometimes metasomatic, origin. It consists of quartz (30–35 percent), orthoclase (30–50 percent), and albite (up to 20 percent). It is distinguished by a complete, or almost complete, absence of dark minerals. The structure of alaskite is crystalline and grainy, less often porphyritic, and its color is oxblood red, rose, white, or light gray. The term derives from the name of the Alaskan Peninsula, where the mineral was first observed. It is associated with rare-metal and rare-earth deposits. In the USSR alaskites are found in Middle Asia, the Caucasus, and the Transbaikal region. Alaskite is used as facing stone.

References in periodicals archive ?
The Omahola project will comprise a processing plant and will treat ore from its Ongolo and MS7 Alaskite deposits and the INCA uraniferous magnetite deposit.
At the completion of the MS7 drill programme, three RC holes were drilled to test anomalous alaskite scree east of the marble footwall to the MS7 deposit.
Ferguson (1946) and Ferguson and Weeks (1950) subdivided the slate series and felsite into an older unit of andesite, chlorite schist, rhyolite, and felsite, intruded by younger granite and alaskite, and overlain by Carboniferous sedimentary rocks of the Horton Group.
Perth, Australia, July 6, 2011 - (ABN Newswire) - Advanced stage uranium explorer Deep Yellow Limited (ASX:DYL) (PINK:DYLLF) is pleased to announce that its wholly-owned Namibian operating entity, Reptile Uranium Namibia Ltd ('RUN') has made a new alaskite discovery at target MS7, which was recently identified from structural and geological mapping.
News_ID=257819613 hyperurobilinuria alaskite hoodia online http://www2.
The company managing director, Peter McIntyre, said, 'Rossing South is the first new alaskite hosted uranium discovery in Namibia in many years and is shaping up as the most significant discovery since the SJ deposit at the Rossing Mine.
Twin Peaks is a high angle quartz vein stockwork of epithermal and secondary origin, developed in faulted and fractured alaskite and quartz monzonite porphyry.
The column leach test, conducted at Gecko Laboratories in Swakopmund, was on a composite of samples collected from seven diamond drill holes located across the Ongolo and MS7 alaskite deposits.
Perth, Australia, June 29, 2011 - (ABN Newswire) - Advanced stage uranium explorer Deep Yellow Limited (ASX:DYL) (PINK:DYLLF) is pleased to announce that chemical assay results have confirmed additional high-grade intercepts from a drilling programme at its Ongolo Alaskite resource area.
Helmstaedt (1968) described the granite as mainly alaskite, described intrusive contacts with adjacent units, and considered the pluton to be Devonian.
0 Mlbs U3O8 from three hard rock deposits, Ongolo Alaskite, MS7 Alaskite and the INCA uraniferous magnetite deposit.
Perth, Australia, May 12, 2011 - (ABN Newswire) - Advanced uranium explorer, Deep Yellow Limited (ASX:DYL) (PINK:DYLLF) is pleased to announce that Coffey Mining Pty Ltd (Perth) has completed a maiden Mineral Resource estimate for the Ongolo Alaskite deposit.