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wolframite

American  
[wool-fruh-mahyt, vawl-] / ˈwʊl frəˌmaɪt, ˈvɔl- /

noun

  1. a mineral, iron manganese tungstate, (Fe,Mn)WO 4 , occurring in heavy grayish-black to brownish-black tabular or bladed crystals: an important ore of tungsten.

wolframite British  
/ ˈwʊlfrəˌmaɪt /

noun

  1. a black to reddish-brown mineral consisting of tungstates of iron and manganese in monoclinic crystalline form: it occurs mainly in quartz veins and is the chief ore of tungsten. Formula: (Fe,Mn)WO 4

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of wolframite

First recorded in 1865–70; wolfram + -ite 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The Democratic Republic of the Congo has abundant reserves of diamonds, gold, coltan, copper, tantalite, wolframite, manganese and uranium.

From US News • Jun. 13, 2014

Cassiterite, wolframite, coltan: they might be the spoiled offspring of celebrity parents, or characters from an unfamiliar fairytale.

From The Guardian • Aug. 27, 2010

It seemed a cinch that neither Russia nor Germany would soon receive those particular tons of copper, tin, antimony, wolframite, molybdenite.

From Time Magazine Archive

They had done little with the colony's extensive deposits of iron ore, tin, antimony, wolframite, manganese and zinc.

From Time Magazine Archive

Important mines of gold and silver, considerable deposits of wolframite, valuable ores of molybdenum and vanadium, and quarries of onyx marble, are also worked.

From Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 5 "Arculf" to "Armour, Philip" by Various

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.