L archived mineral specimens

Lammerite

#DS43177

Availability: Sold

Locality: Abundancia mine, Guanaco, Santa Catalina, Antofagasta, Chile
Formula: Cu₃(AsO₄)₂
Size: Miniature 4x3.5x2cm
Tagged: arsenate , copper

Micro green crystals of rare Lammerite with bright blue rosettes of Lemanskiite.

Lammerite at Dakota Matrix Lammerite at WebMineral Lammerite at MinDat

Lamprophyllite

#PD34648

Availability: Sold

Locality: Yukspor Mt, Khibiny Massif, Kola Peninsula, Russia
Formula: Na₃(SrNa)Ti₃(Si₂O₇)₂O₂(OH)₂
Size: Miniature 4.5x4x1.5cm

Long, bladed, orange-red divergent crystals to 2.5cm. There is a smaller spray as shown in the photos. Associated with Aegerine. The dark rusty red, larger grains are unidentified.

Lamprophyllite at Dakota Matrix Lamprophyllite at WebMineral Lamprophyllite at MinDat

Langbanite

#AH55964

Availability: Sold

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.

Langbanite at Dakota Matrix Langbanite at WebMineral Langbanite at MinDat

Langite

#RS58618

Availability: Sold

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.

Langite at Dakota Matrix Langite at WebMineral Langite at MinDat