"A dark green to bluish green iron phosphate (rockbridgite) forms fibrous spherical intergrowths, globular crusts and rare sheaf-like tufts in cavities in the Wycheproof pegmatite veins. Individual spheres rarely exceed 0.5mm in diameter. The mineral is usually associated with cyrilovite, eosphorite, leucophosphite and rarely with kidwellite."
Wycheproof granite quarry, Wycheproof, Buloke Shire, Victoria, Australia