Search Archived Mineral Specimens

Availability

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Locality

Långban, Filipstad, Värmland, Sweden

Formula

Mn²⁺₄Mn³⁺₉Sb⁵⁺O₁₆(SiO₄)₂

Size

Thumbnail 1.6x0.9x0.9cm

Special Info

Type Locality

An incredible specimen with four crystals of Langbanite to 1mm. These are exceptional crystals. There are also literally dozens more, but are much smaller, on the order of 0.2mm. Good specimens of Langbanite are extremely hard to obtain, don't pass this one up.

Availability

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Locality

Caroline Tunnel, Ward dist., White Pine Co., Nevada, United States

Formula

Cu₄SO₄(OH)₆·2H₂O

Size

Thumbnail 2.5x2.5x1.5cm

Tagged

copper

Good micro spherulites of sky blue Langite with good coverage associated with Galena and Chalcopyrite. This is a desirable locality of a historic Nevada mining district.

Availability

Sold

Locality

Marquis Lode, Bedford United mine, Gulworthy, Devon, England

Formula

Cu₄SO₄(OH)₆·2H₂O

Size

Miniature 4.5x2.3x2.2cm

Tagged

copper

Excellent radial crystals to 5mm. Coverage on the backside too.

Availability

Sold

Locality

Geevor mine, Pendeen, St Just dist., Cornwall, England

Formula

Cu₄SO₄(OH)₆·2H₂O

Size

Thumbnail 2.5x3x2cm

Tagged

arsenate , copper

Crust of patchy colored Langite.  Very small crystals are visible under magnification. 

Availability

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Locality

Levant mine, St. Just dist., Cornwall, England

Formula

Cu₄SO₄(OH)₆·2H₂O

Size

SmCabinet 6x3x5cm

Tagged

copper

Dark to light sky blue crusts. An older specimen with a Barstow label.

Availability

Sold

Locality

Aris quarries, Windhoek dist., Khomas Region, Namibia

Formula

Ce₂(CO₃)₃·8H₂O

Size

Thumbnail 2.2x1.4x0.8cm

Tagged

carbonate , REE mineral

Pearly white Lanthanite with a good spray of orange-brown Tuperssuatsiaite 3mm across.