Wiktionary
nobleite
n. (context mineralogy English) A monoclinic-prismatic mineral containing boron, calcium, hydrogen, and oxygen.
Wikipedia
Nobleite
Nobleite is a rare borate mineral with the chemical formula CaBO(OH)ยท3HO. It was discovered in 1961, in Death Valley, California, and is named for Levi F. Noble, a USGS geologist, in honor of his contributions to the geology of the Death Valley region.
Nobleite has also been identified at two localities in Chile and Argentina.