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Comments: Floater crystal of deep, inky blue boleite with interpenetration twinning.
Location: Amelia Mine, Santa Rosalia, Baja California, Mexico.
Scale: 0.7 cm.
© John Veevaert
Boleite: KPb26Ag9Cu24Cl62(OH)48 Cumengite: Cu20Pb21Cl42(OH)40·6H2O
Comments: Inky blue cumengite "sixling" epitaxially overgrown on boleite.
Location: Amelia mine, Santa Rosalia, Baja California Sur, Mexico.
Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals