praseolite
/ˈpreɪzɪəlʌɪt/(also prasiolite) Mineralogy. Now rare
noun
A green mineral which is a form of mica pseudomorphous after cordierite.
Origin
Mid 19th century; earliest use found in James Dana (1813–1895), geologist, zoologist, and teacher. From ancient Greek πράσιος leek-green + -lite, after Swedish Praseolit, so called on account of its leek-green colour.