Group of equant crystals of Harmotome, a rare tectosilicate that belongs to the zeolite group, with very marked twins among which the cross twin stands out, with other twins in the form of a "drill bit". The crystals, which are on matrix, are white, with a prominent pearly luster. Several of them are doubly terminated. From the type locality for the species.
This specimen comes from the collection of duplicates of Carles Curto (number 1967.10), whose label and computer file we will send to the buyer.
St. Andreasberg mining area, Goslar District, Harz, Lower Saxony/Niedersachsen Germany
Specimen size: 4.7 × 4.6 × 2.3 cm = 1.85” × 1.81” × 0.91”
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