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RM3092   Titanite, aegirine-augite and microcline

Arendal, Agder, Norway

This specimen from the Freiberg Bergakademie is accompanied by a very old label, probably from the early to mid-19th century, along with a more "modern" one. When in doubt about the description of the labels, we proceeded to analyze the specimen using SEM-EDS. By this spectroscopic technique we have been able to confirm that the beige crystals included in the piece are titanite. The white matrix corresponds to potassium feldspar, most likely microcline, and the black elongated prismatic crystals correspond to aegirine-augite. It is a historical specimen from a Norwegian locality known for centuries for mining magnetite in skarns. We will send all analyzes to the buyer.

Size: 7 x 6.1 x 3.9 cm.
Main crystal: 18 mm.
Found in s. XIX.

Freiberg Bergakademie.
Analyzed specimen with report