from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A yellow ore of uranium and radium with composition K(UO2)2(VO4)2·3H2O.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A yellow mineral that is a potassium uranyl vanadate that is a major ore or uranium, with the chemical formula K2(UO2)2(VO4)2·3H2O.
from The Century Dictionary and Cyclopedia
- n. A more or less impure hydrated vanadate of uranium and potash, occurring somewhat abundantly in Montrose county and elsewhere in Colorado: found as a yellow crystalline powder or in loosely coherent masses. It contains radium and is said to be highly radio-active.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a yellow radioactive mineral; an ore of uranium and radium and vanadium
Did he happen to know where they might find an ore called carnotite?
But the discovery in 1924 of a large pitchblende deposit in the Belgian Congo provided a more dependable radium supply and the interest in American carnotite fizzled.
The first plant was created in France and worked very successfully, but afterwards manufactures were founded in other countries, the most important of which are now in America, where great quantities of radium ore, named "carnotite," are available.
In August 1942, the company sealed a deal to mine carnotite in Cane Valley; the agreement stipulated that VCA must employ Navajo miners.
Specifically, Roosevelt was interested in developing a domestic supply of carnotite, which yields uranium and vanadium.
In August 1942, the company sealed a deal to mine carnotite in Cane Valley; the agreement stipulated that the VCA must employ Navajo miners.
This was considered plentiful compared to the uranium in the carnotite stock.
Anyone who found a new deposit would also earn a fine bonus, $10,000, on the first delivery of carnotite or similar rocks.
He discovered carnotite ore of the same chemical composition as the rock from the Cameron pits that had been processed in Tuba City.
VCA still sent Monument No. 2 ore to Durango, but Kerr-McGee, Rare Metals, and Texas-Zinc Minerals Corp. had hired hundreds of Navajos to grind carnotite from other reservation uranium mining districts.