Vauxite from Siglo Veinte Mine, Llallagua, Potosí, Bolivia - image 1
Photo by Laszlo Kupi Fine Mineral Photography

Vauxite from Siglo Veinte Mine, Llallagua, Potosí, Bolivia

Probably dates back to the 1960s or earlier. On the back, small white crystals of metavauxite are also present. Ex Jack Halpern Collection: this piece is shown on page 111 of Addicted to Beauty: The Legacy of Jack Halpern (Mineralogical Record, March 2025).


Photos by László Kupi

Product details

SpeciesVauxite
SizeSmall Cabinet
Dimensions6.1 x 5.1 x 3.8 cm
Added on10/23/2024
LocalityBolivia, Potosí, Siglo Veinte Mine
Current owner
DL
David Lucas
Member since 2025
Previous owners
DateCollectorAcquisition price
—The ArkenstoneNot disclosed

Learn more

Vauxite
Mineral guide
Learn about Vauxite
a rare hydrated iron–aluminum phosphate with sky-to-cornflower-blue rosettes and delicate micaceous laths; Bolivian localities mark its rarity.
Vauxite
Regional guide
Vauxite from Siglo Veinte Mine, Bolivia
from Siglo Veinte Mine, Bolivia: rare blue phosphate crystals in radiating aggregates, Bolivian type locality prized for rarity and provenance.
Locality guide
Siglo Veinte Mine
Siglo Veinte Mine, Bolivia — a famed locality uniting tin ore bodies, historic camp status, and delicate hydrated phosphates prized by collectors.