What is "inyoite"

n. (context mineralogy English) A colourless monoclinic mineral with the chemical formula Ca(H₄B₃O₇)(OH)·4H₂O.

Inyoite, named after Inyo County, California, where it was discovered in 1914, is a colourless monoclinic mineral. It turns white on dehydration. Its chemical formula is Ca(HBO)(OH)·4HO or CaBO(OH)·4HO.