Wiktionary
ruizite
n. (context mineralogy English) A monoclinic-prismatic mineral containing calcium, hydrogen, manganese, oxygen, and silicon.
Wikipedia
Ruizite
Ruizite is a sorosilicate mineral with formula CaMnSiO(OH)ยท2HO. It was discovered at the Christmas mine in Christmas, Arizona, and described in 1977. The mineral is named for discoverer Joe Ana Ruiz.