Chalcanthite – Nanisivik Mine, Nunavut Canada | 1.1kg Specimen

Chalcanthite – Nanisivik Mine, Nunavut, Canada | 1.1kg Specimen

Naturally formed Chalcanthite crystals are among the rarest finds in the mineral world — and this 1.1kg specimen from the legendary Nanisivik Mine in Nunavut, Canada, is a testament to why collectors pursue them so passionately.

Why naturally formed Chalcanthite is so rare

Chalcanthite (copper sulfate pentahydrate) is highly water-soluble, meaning natural crystal formations are fragile, transient, and exceedingly difficult to preserve. The vast majority of Chalcanthite seen in collections is synthetically grown — making a genuine, naturally formed specimen like this one truly scarce and significant.

This specimen

Set against a host of Rhyolite with trace Agate, the radiant, electric-blue Chalcanthite crystals burst from the matrix in a spectacular display of colour and form — clustered amongst complementary crystal growth that enhances the visual drama of the piece.

• Weight: 1.1kg
• Origin: Nanisivik Mine, Nunavut, Canada
• Naturally formed Chalcanthite — rare in any collection
• Host rock: Rhyolite with trace Agate
• Vivid, radiant blue crystal clusters
• A serious impact piece for the discerning collector

Nanisivik — meaning "place where things are found" in Inuktitut — lived up to its name in producing specimens of this calibre. A rare opportunity to own a piece of genuine geological rarity.