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Powellite

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powellite [‚pau̇ยทə‚līt]
(mineralogy)
Ca(WMo)O4A commercially important tungsten mineral, crystallizing in the tetragonal system; isomorphous with scheelite (CaWO4).
Powellite 

(named after the American geologist J. Powell), a mineral, calcium molybdate (CaMoO4). Powellite contains 28.48 percent CaO and 71.52 percent M0O3; some varieties contain up to 10.3 percent WO3. The mineral crystallizes in the tetragonal system. Sometimes it is found in the form of small crystals of a lamellar or dipyramidal habit. Most often it forms cryptocrystalline aggregates—products of alteration of molybdenite—which sometimes preserve the foliated structure typical of molybdenite. Its color ranges from white to dark green and brown. Powellite has a hardness of 3.5 on Mohs’ scale and a density of 4,250–4,520kg/m3. In ultraviolet light a yellow luminescence is usually detected. Powellite is a characteristic mineral of the oxidized zone of the ores of molybdenum deposits.
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Yet we have something in common, Mr Bercow and I, because the reason he is so detested on the Conservative benches is that he has changed: from Enoch Powellite "send them back" right-wing, hard nut to gay-hugging liberal, either under the soothing influence of his relatively Amazonian partner or as part of a naked, long-term pitch for the prize he has now attained.
You can't please critics all the time by The Journal (Newcastle, England)
From the right, the Powellite agenda, which rationalises the riots in terms of liberal bullying of a neglected working class, discredited but still with resonance, resurfacing from time to time in one guise or another.
As racism fades into my memory, it begins yet again for others by guardian.co.uk / guardian.co.uk
Now things have changed entirely and have nothing to do with colour - but the British Establishment still labels us as Powellites when we raise our voices against the invading modern-day hordes.
Our immigrants problem is not race but culture by Birmingham Mail (England)
 
 
 
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