Blueslide, Pend Oreille County, Washington, USA

Cretaceous-age granite of the Kaniksu Batholith - Not much is known about the Triple H&J Mine other than it was a minor uranium occurrence. A small number of autunite specimens were collected in the late 1950's (Jim Browne, personal communication, December 19, 2013).

Mr. Browne, who was working as a mine geologist for the Pend Oreille Mine at this time, indicated that the "Triple H" and "J" stand for the claim owners, "three Heikala (sp?)" brothers and a "Juntinen." These are phonetic spellings as Mr. Browne has never seen anything in writing. Mr. Browne met the brothers when he traded for a few of the autunite specimens.

Ca(UO2)2(PO4)2-10H2O - Occurs as dark green cores to crystals that are partially dehydrated.
Ca(UO2)2(PO4)2-6-8H2O - Occurs as yellow-green pseudomorphs caused by dehydration of autunite, typically along the rims of crystals.

* photographed