| 00761: Gypsum variety Selenite and
Hydrozincite - $28 Maravillas Mine, Naica, Saucillo Municipality, Chihuahua, Mexico Cabinet - 9.8 x 5.8 x 4.7 cm 88 grams Fluorescent (LW/SW) Specimen status: Reserved Send an email with specimen number to order A spray of glassy, nicely transparent
and terminated selenite gypsum blades, partially coated
with a crust of white hydrozincite (identified visually)
towards the root. Although Mindat does not list hydrozincite at
this locality, this mineral is a common associate
with gypsum in the region. In addition, the coating
fluoresces white under both longwave UV (blacklight) and
shortwave UV. It also effervesces when treated with dilute
hydrochloric acid. The specimen is in overall very fine
condition.
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