D defs.my
Entry 1 sense Webster, 1913

Tachhydrite

· Tach·hy·drite · IPA
01 n. A hydrous chloride of calcium and magnesium occurring in yellowish masses which rapidly deliquesce upon exposure. It is found in the salt …
  1. 1.
    A hydrous chloride of calcium and magnesium occurring in yellowish masses which rapidly deliquesce upon exposure. It is found in the salt mines at Stassfurt.(Min.)