redondite
/rəˈdɒndʌɪt/Mineralogy
noun
A rare phosphate mineral of the variscite group which occurs as whitish amorphous masses.
- Redondite is a hydrated phosphate of aluminium and iron; (Al,Fe)PO4·2H2O. Crystal system: orthorhombic..
Origin
Late 19th century; earliest use found in Charles Shepard (1804–1886). From Redonda, the name of an island in the West Indies (now part of the territory of Antigua and Barbuda), where the mineral was discovered + -ite.