WOLFRAMITE
Wolframite
Wolframite, WO4, is an iron manganese tungstate mineral that is the intermediate between ferberite and huebernite . Along with scheelite, the wolframite series are the most important tungsten ore minerals. Wolframite is found in quartz veins and pegmatites associated with granitic intrusives. Associated minerals include cassiterite, scheelite, bismuth, quartz, pyrite, galena, sphalerite, and arsenopyrite.The above text is a snippet from Wikipedia: Wolframite
and as such is available under the Creative Commons Attribution/Share-Alike License.
wolframite
Noun
The above text is a snippet from Wiktionary: wolframite
and as such is available under the Creative Commons Attribution/Share-Alike License.