ex Joan Lamond Collection. Labelled as thomsonite, but clearly identical habit to offretite pictured on Mindat.
Resembles specimen from Unspecified roadcut, San Francisco River area, Clifton, Copper Mountain District (Clifton-Morenci District), Shannon Mts, Greenlee Co., Arizona, USA
ex Joan Lamond Collection, ex Alan Waldon.
(Incorrect photo – it is chabazite and thomsonite)