( n. )
A silicate of alumina, iron, and magnesia, having a bright blue color and vitreous luster; cordierite. It is remarkable for its dichroism, and is also called dichroite.
( n. )
A silicate of alumina, iron, and magnesia, having a bright blue color and vitreous luster; cordierite. It is remarkable for its dichroism, and is also called dichroite.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012