Phosphophyllite from Bolivia, Potosí, Cerro de Potosí, Unificada Mine

John Capelli
Boston, Massachusetts, United States
0 for sale·Member since 2026

I acquired this piece during the 2024 Denver Show.

Phosphophyllite is known as one of the Holy Grails of mineral collecting for many reasons. This piece has superb color, clarity and form. The minor sphalerite on the back gives it great contrast as it is technically a matrix piece. Finding good phosphos are definitely quite challenging today. Glad I picked this one up!

Product details

SizeThumbnail
Dimensions2.5 x 1.0 x 1.0 cm
Added on02/24/2026

Known provenance

DateCollectorAcquisition price
John CapelliNot disclosed
Denver 2024

Learn more

Mineral guide
Learn about Phosphophyllite
rare sea-green to mint-blue crystals with glassy luster; fragile (hardness 3.5, perfect cleavage), prized Bolivian specimens and micromounts.
Regional guide
Phosphophyllite from Unificada Mine
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