Definition of magnesium fluoride
: a crystalline salt MgF2 occurring naturally as sellaite but also made synthetically and used chiefly as a flux and as a coating for optical glass to cut down reflection
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“Magnesium fluoride.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/magnesium%20fluoride. Accessed 9 May. 2021.
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