ˈpenənt.ˌīt noun
( -s )
Etymology: Thomas Pennant died 1798 Welsh naturalist + English -ite
: a mineral Mn 9 Al 6 Si 5 O 20 (OH) 16 of the chlorite group consisting of basic silicate of manganese and aluminum isomorphous with thuringite
ˈpenənt.ˌīt noun
( -s )
Etymology: Thomas Pennant died 1798 Welsh naturalist + English -ite
: a mineral Mn 9 Al 6 Si 5 O 20 (OH) 16 of the chlorite group consisting of basic silicate of manganese and aluminum isomorphous with thuringite
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012