An oddly lightweight specimen of fairfieldite - a rare phosphate known in larger crystals now from other locales. BUT, this IS the Type Locality (in 1879) for this important rarity so its worth acquiring for that reason primarily. From the noted collection of William Drown, whom according to the Mineralogical Record Archive on him was an umbrella manufacturer who used his fortune to amass a collection of some 6000 mineral specimens. His collection was kept by his family for a generation after his death and then donated in 1918.