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单词
boracite
释义
WordReference Random House Unabridged Dictionary of American English © 2024
bo•ra•cite
(bôr
′
ə sīt′, bōr
′
-),
USA pronunciation
n.
Mineralogy
a strongly pyroelectric mineral, a borate and chloride of magnesium, Mg
6
Cl
2
B
14
O
26
, occurring in white or colorless cubic crystals or fine-grained masses.
borac-
(stem of
borax
1
) + -
ite
1
1800–10
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