The reddish block-like crystals of waylandite with a coating of elongated greenish grains of kettnerite. From Waterloo Quarry, Dodge County, Wisconsin. Field of view is 0.5 mm left to right. (Dan Behnke specimen and image.)

Formula: BiAl3(PO4)2(OH)6 Hexagonal


Waylandite is a dull to glassy white mineral that occurs rarely in pegmatites with other bismuth-bearing minerals.

DODGE COUNTY: Waylandite occurs as very tiny crystals in vugs with bismuth, kettnerite and other minerals in pegmatite cutting quartzite in the Michels Materials Waterloo Quarry, NE sec. 33 and NW sec. 34 T.9N. R.13E. (Buchholz et. al. , 2007b)