Dufrenite specimens for sale
1 for sale · $750 USD
Dufrenite is a rare phosphate mineral that occurs as acicular to tabular crystals and often forms in aggregates within hydrothermal and pegmatitic environments. Its color can range from deep green to olive-brown, and it typically exhibits a vitreous to greasy lustre with a somewhat adamantine sheen in well-formed crystals. The mineral’s structure includes complex iron and calcium phosphate groups, contributing to its distinctive appearance and penchant for inclusion-rich specimens from glinting, mineral-rich pockets.
- Formula
- Ca0.5Fe2+Fe3+5(PO4)4(OH)6 · 2H2O
- Rarity
- Rare
- Stability
- Moderately Stable
- Collector interest
- Moderate Interest
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About Dufrenite
Notable sources include classic hydrothermal deposits and pegmatites that yield well-crystallized aggregates, sometimes accompanied by other iron phosphate minerals. Collectors prize samples that display crisp terminations and pleasing crystal transparency, as well as those showing rich green hues that contrast with lighter matrix material. Although the mineral is relatively uncommon, Dufrenite from storied localities tends to attract attention for its color, crystal habit, and association with other phosphate species, making it a sought-after addition to a serious collection.