cooperite

 [koo-puh-rahyt]  

coop·er·ite

   [koo-puh-rahyt]
noun
a mineral, sulfide and arsenide of platinum, occurring in igneous rocks in the form of steel-gray crystals.
Origin:
after R. A. Cooper, who described it in 1920; see -ite1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Cooperite is always a great word to know.
So is zedonk. Does it mean:
a gadget; dingus; thingumbob.
the offspring of a zebra and a donkey.
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