manganpectolite
/ˌmaŋɡənˈpɛktəlʌɪt/(also manganpectolith) Mineralogy
noun
A variety of pectolite containing about 4 per cent manganese oxide.
Origin
Late 19th century; earliest use found in Edward Dana (1849–1935), mineralogist and physicist. From German Manganpektolith from Mangan + Pektolith.