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Whitlockite
2 in the gallery
Whitlockite is a phosphate mineral that belongs to the apatite supergroup, typically forming as transparent to pale-colored prismatic crystals with a vitreous lustre. It occurs in environments where phosphate-rich fluids crystallize under low to moderate temperature conditions, and it can display a range of hues from colorless to pale brown depending on impurities. Crystallization habit is often granular to acicular, with well-formed crystals reported from several notable phosphate-bearing localities. In prominent collections, Whitlockite crystals are valued for their compact, blocky habits and its association with other phosphates and apatite group minerals.
- Formula
- Ca9Mg(PO4)6(PO3OH)
- Rarity
- Rare
- Stability
- Stable
- Collector interest
- High Interest
- Classification notes
- Phosphate mineral; apatite group (apatite supergroup)
Where Whitlockite is found
Top localities
- Northern Belle pit1 specimen
- Yukon1 specimen
About Whitlockite
Collectors prize Whitlockite for its rarity and its context within phosphate mineral assemblages. Notable specimens come from Canada and the USA, where high-quality crystals have been recovered from igneous and hydrothermal environments. Its relative rarity adds to the appeal for cabinets seeking a distinct member of the apatite family, especially when crystals exhibit good termination faces or pleasing lustre. As with other minerals in this group, Whitlockite offers a window into phosphate mineralization processes and the diversity of the apatite supergroup, making it a thoughtful addition to serious mineral collections.
