Spessartine
Pyörönmaa pegmatite, Valkeakoski, Pirkanmaa, Finland
Brownish red crudely formed spessartine from pegmatite known for its rare earth minerals. Pyörönmaa pegmatite garnet is also found to be rich in yttrium (50,6 mol.% spessartine, 37,6 mol.% almandine, 4,6 mol.% andradite and 4,3 mol.% yttrogarnet). FOV. 30 x 35 mm. Field collected 2010.
© Jyrki Autio