Specimen data for Samuelsonite

Tom Mortimer catalog number: u1099

Specimen from the collection of:   Gordon Jackson. Ex. Vince Valade collection, #1003BCF.
Below is the samuelsonite crystal morphology drawing from American Mineralogist Vol. 60, pg 962, (1975)

Identification method: Specimen field collected and identified by Clayton Ford.
As stated on page 167 of The Pegmatite Mines Known as Palermo by Whitmore & Lawrence, "Samuelsonsite was found ... in an alteration of massive augelite with cavities of childrenite, foggite, hydroxylapatite and whitlockite." Much childrenite is visible on this specimen. The backside of this samuelsonite crystal is covered with clusters of foggite, (or perhaps type 4 goyazite).

Notes: As of 2010 there are only a couple of photos of samuelsonite on the web.