Dims: 2.4x2.7x2.0" (6.2x6.8x5.1cm)
Wt: 9.05 oz. (256g)
This is a beautiful cabinet specimen of cornetite. The bulk of the specimen is a host rock and layers of a black mineral, likely massive brochantite. A significant fraction of the specimen is massive cornetite, although there is a small amount of chrysocola and malachite present. The cornetite is botryoidal and deep sea blue in color (it reminds me of the deep blue ocean off Hawaii). THe surface terminations are lustrous and sparkly, in several shades of velvety blue, and the protected areas have a lovely scattering of tiny bright green malachite crystals to add more color and contrast. The darker blue areas are likely a mixture of cornetite and brochantite crystals. There are a few small areas of damage, and the back and a side are fractures, and otherwise this specimen is magnificent.