Heulandite

hydrated sodium calcium aluminum silicate
(Na, Ca)_4-6Al₆(Al, Si)₄Si₂₆O₇₂·24H₂O

Heulandite, Calcite and Celadonite
Malpais Hill Railroad Cut, Dudleyville, Arizona
Collected on 30 May 2002

Heulandite (fluoresces orange) and Calcite (fluoresces green) under shortwave UV
Malpais Hill Railroad Cut, Dudleyville, Arizona
Collected on 30 May 2002

Celadonite (green), Heulandite (clear) and unknown Manganese Oxide (black)
Malpais Hill Railroad Cut, Dudleyville, Arizona
Collected on 30 May 2002