troostitic

troostite

[troo-stahyt]
noun
a microconstituent of hardened and tempered steel, consisting of a very fine aggregate of ferrite and cementite.

Origin:
1900–05; named after L. J. Troost (died 1911), French chemist; see -ite1

troostitic [troo-stit-ik] , adjective
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World English Dictionary
troostite (ˈtruːstaɪt)
 
n
a reddish or greyish mineral that is a variety of willemite in which some of the zinc is replaced by manganese
 
[C19: named after Gerard Troost (died 1850), US geologist]

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