| 单词 | tincalconite | 
| 释义 | tincalconitenoun  tin·cal·co·nite   tinˈkalkəˌnīt, tiŋˈk-    plural -s     : a mineral Na2B4O7.5H2O consisting of sodium borate pentahydrate that is one of the principal ore minerals of borax and boron compounds   compare kernite   | 
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