troostite
noun (1)
troost·ite
| \ ˈtrüˌstīt\
plural -s
Definition of troostite
(Entry 1 of 2)
: a variety of willemite occurring in large reddish crystals in which the zinc is partly replaced by manganese
troostite
noun (2)
\ "\
plural -s
Definition of troostite (Entry 2 of 2)
: slightly tempered martensite that etches dark and cannot be resolved by the optical microscope
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