Home > Laskowski Ⅳ – July 13 > MS1874 Langite
Langite
- Tankardstown mine
- Knockmahon
- County Waterford
- Ireland
- 7.3 × 6.0 × 1.4 cm – Small cabinet specimen (under 10 cm)
Langite is a hydrated copper sulfate with monoclinic (pseudo-orthorhombic) symmetry. Maskelyne (1864) first announced the species at a meeting of the Geological Society of London. The mineral name honors Austrian chemist Viktor von Lang (1838-1921), a pioneer in crystal physics. Pisani (1864) published the first analysis of langite, and Maskelyne (1865) followed shortly with a complete description.
This specimen is a crust of tightly intergrown langite crystals on an altered siliceous matrix. The surface shows sparkle, indicating many tiny crystal faces. A large plate of the mineral. From the collection of E.R. Laskowski (1949-2020), a mining engineer who retired to Tucson, Arizona.
Price: $750
Item code: MS1874
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