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Whewellite

Whewellite specimens for sale

3 for sale · $2,400–$3,250 USD

22 in the gallery

Whewellite is a calcium oxalate hydrate mineral that forms monoclinic crystals. It typically presents as colorless to pale grey, with a vitreous luster and a prismatic or tabular habit that can appear as delicate needle-like aggregates. Transparent to translucent crystals may occur in well-formed specimens, often intergrown with other oxalate minerals and occurring in hydrothermal or placers associated with other calcium minerals.

Formula
Ca(C2O4) · H2O
Rarity
Common
Stability
Stable
Collector interest
Moderate Interest

Buy Whewellite specimens

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Whewellite with Löllingite inclusions and Weddelite(?) image
Whewellite with Löllingite inclusions and Weddelite(?)
The Arkenstone
Updated 1h ago
$3,250
Whewellite (twin) image
Whewellite (twin)
The Arkenstone
Updated 1h ago
$2,400
Whewellite (twinned) image
Whewellite (twinned)
The Arkenstone
Updated 1h ago
$2,850

Where Whewellite is found

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About Whewellite

Notable localities include classic European and Russian sites, with rich collections from Germany, the Czech Republic, and France, alongside occurrences in Australia and Russia. Specimens from these areas are sought after for their slender habit and the way whewellite crystals can accumulate in tight, laminar clusters or radiating sprays. Collectors prize well-formed crystals, clean surfaces, and clean, colorless to near-colorless transparency, which showcase whewellite’s delicate crystal engineering and its association with other oxalates and calcium-bearing minerals in mineralogical parageneses.