mirabilite
noun
mi·rab·i·lite
mə̇ˈrabəˌlīt
plural -s
: a mineral Na2SO4.10H2O consisting of hydrous sodium sulfate occurring as a deposit from saline lakes, playas, and springs and as an efflorescence
Word History
Etymology
German mirabilit, from New Latin mirabile (in sal mirabile Glauber's salt, literally, wonderful salt) (from Latin, neuter of mirabilis wonderful) + German -it -ite