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axinite

noun
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ax·​i·​nite | \ ˈaksəˌnīt \
plural -s

Definition of axinite

: a mineral Ca2(MnFe)Al2BSi4O15OH, consisting of borosilicate of aluminum and calcium with varying amounts of iron and manganese commonly in brown glassy sharp-edged triclinic crystals (hardness 6.5–7, specific gravity 3.27–3.29)

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History and Etymology for axinite

French, from Greek axinē axhead, ax + French -ite; from its ax-shaped crystals

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“Axinite.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/axinite. Accessed 9 December 2019.

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