$73Median
2Sold (12 mo)
$100Last sale
Bertrandite from Papachacra, Catamarca Province, Argentina
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Ships from USA
Fine gemmy slightly pinkish to mostly colorless crystals of sharply formed bertrandite to 1.0 cm in size on matrix. In good condition.Papachacra, situated near Corral Quemado in the Belen Department of Catamarca, Argentina, is a remote mineral district featuring small, fluorine-rich miarolitic pegmatites tied to the shallowly emplaced Paleozoic El Portezuelo (Papachacra) Granite stock. While the region has seen artisanal and small-scale mining prospect activity and organized claim work since the late 20th century (with modern exploration ramping up around the late 1980s) without a definitive historical closing date, its pegmatites and associated hydrothermal pockets are celebrated by geologists and collectors for producing exceptional specimens of smoky quartz, microcline, albite, fluorite, and topaz. Within this specialized geological setting, rare accessory accessory minerals include bertrandite, a basic beryllium sorosilicate that crystallizes as a late-stage secondary phase during post-magmatic volatile evolution.
Product details
SpeciesBertrandite
SizeMiniature
Dimensions4.5 x 4.0 x 3.0 cm
Listed on10/05/2026
LocalityArgentina, Catamarca Province, Papachacra
SKU9507132
Current owner
WM
Weinrich MineralsFeatured
3,340 for sale·9 sold
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