$750Median
13Sold (12 mo)
$1,125Last sale
Pentagonite specimens for sale
15 for sale · $150–$6,000 USD
17 in the gallery
Pentagonite is a calcium vanadate silicate mineral that forms as transparent to translucent crystals with a vitreous to adamantine lustre. It often exhibits a distinctive tabular, elongated habit and can display a warm color range from pale yellow to orange, reflecting vanadium-rich chemistry. Crystals may occur in aggregates or as clusters, sometimes embedded in matrix or associated with other vanadates, and are commonly found in oxidized pockets within alkaline igneous rocks. Notable localities include India, where differentiating specimens are sought after for their crisp edges and well-defined faces, contributing to the mineral’s allure for cabinet displays and collection corners.
- Formula
- Ca(VO)(Si4O10)·4H2O
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Pentagonite from Pune District, Pune Division, Maharashtra, India
Superb Minerals
Updated 5d ago
$2,250
Where Pentagonite is found
About Pentagonite
Collectors prize Pentagonite for its rarity, striking crystallography, and the challenge of obtaining well-formed, clean crystals. Its association with vanadium-rich environments and specific hydrothermal or secondary alteration settings adds to the appeal, as does the potential for colorful, lustrous forms that photograph well under display lighting. While not abundant in the market, high-quality Pentagonite from premier Indian localities is valued for its geometric shapes and the way it demonstrates the interplay of composition and crystal habit in vanadate minerals.
