| Occurs in cubes and pyritohedrons like pyrite but differs slightly in
that its color is slightly silvery, but is easily determined from pyrite
because of its grayish black streak. Many crystals are found in solid pyrite,
making their removal without damage very difficult. Fine, large crystals
are rare but have been found at Skutterud, Norway; Tunaberg, Sweden; and
at Cobalt, Ontario, Canada. The Lovisin mine at Tunaberg was operating by
1420 and continued producing until it closed in the 1880's because of a
massive cave-in. A fine collection of cobaltite crystals is displayed in
Stockholm's Museum of Natural History. |
