phenacite
noun
a rare vitreous mineral, beryllium silicate, Be 2 SiO 4 , occurring in crystals, sometimes used as a gem.
phenakite
-
a variation of
phenacite.
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 following minerals produce beads with a small quantity of soda, but produce slags if too much soda is added: phenakite, pierosmine, olivine, cerite, cyanite, talc, gadolinite, lithium-tourmaline.
Some other minerals in which it occurs are phenakite, euclase, and chrysoberyl.
From A Text-book of Assaying: For the Use of Those Connected with Mines. by Cornelius Beringer
