hackmanite
English
Noun
hackmanite (countable and uncountable, plural hackmanites)
- An important variety of sodalite exhibiting tenebrescence.
Further reading
- “Hackmanite” in David Barthelmy, Webmineral Mineralogy Database, 1997–.
- “hackmanite”, in Mindat.org, Hudson Institute of Mineralogy, accessed 29 August 2016.
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