From an old collection (circa 1975 and before), up for your consideration is this specimen displaying microcline feldspar crystals with well defined smooth faces. This fine feldspar specimen was collected at Government Pit in Albany, NH.

The specimen measures 57 x 49 x 47 mm 

(1 inch = 25.4 mm)

121.8 grams

I will enclose the original box and the tag that came with this specimen.

#5