37480: Opal-AN - $16 undisclosed location near Rioverde, Rioverde Municipality, San Luis PotosÃ, Mexico Miniature - 3.8 x 2.9 x 2.1 cm 15 grams Fluorescent (SW) Specimen status: Available Send an email with specimen number to order Water clear and colorless to
translucent and light gray opal-AN. Both color zones are
botryoidal. The colorless portion fluoresces a bright
green under shortwave UV whereas the gray material is
UV-inactive.
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