A sharp, complete and perfect textbook form Cobaltite crystal from the classic locale of Tunaberg (Sweden). The worlds best Cobaltites have come from two localities in Sweden, Tunaberg and Hakansboda. This has a trace of Chalcopyrite on one face which is more typical of Tunaberg specimens. Well above average quality, the luster and form are impeccable.
Cobaltite -classic locale
5.8 x 4.3 x 3.4 CM (small cabinet/ large miniature)
Worldwide mix summer
An excellent sharp Swedish Cobaltite crystal on typical matrix block of mixed Sulfides (Chalcopyrite etc). The Cobaltite is a modified cube (8MM) with distinct striations and fine metallic luster that is mirror bright as seen. Looks fine by eye, but the cube has a corner contact at one edge seen with magnification and there is a small crack in the crystal not visible without 10x magnification. That said this is far better than average and as near to perfect as we have seen. These are not common and in this quality very rare, often quite pricy.
Cobaltite - Modified Cubic crystal
3.6 x 2.4 x 2 CM (small miniature/ large thumbnail (toenail))
Pre Holiday 2017
A sharp 9 MM metallic silver crystal with clear edge modifications perched in matrix. An older specimen from this classic location that has produced perhaps the best ever crystals for the specie. Some minor sulfide overgrowths are seen and the crystal has retained the bright luster that makes these so distinctive. Could easily be trimmed to make a thumbnail if desired. A good example well crystallized for this often damaged specie that is also affordable.