Superb, well-preserved specimen with good provenance as shown in the provenance tab. The crystals are bright yellow to 5mm and for the most part are in great shape.
Fluorescent, Radioactive!!
Autunite
Formula
Ca(UO2)2(PO4)2·10-12H2O
Crystal System
Tetragonal
Crystal Habit
Tabular, Micaceous, Foliated
Cleavage
Perfect, Poor, Poor
Luster
Vitreous - Pearly
Color
yellow, pale yellow, lemon yellow, greenish yellow, pale green