A novelty for Tucson 2009. The Malachite has replaced very well defined crystals of Azurite, some of them doubly terminated. The matrix is a thin layer of very bright crystals of Chrysocolla. This association is very rare at Milpillas and only a very few specimens arrived to the market.
The specimen has been published in the magazine ‘extraLAPIS’ on page 83, number 45, "Kupfer Mineralien" and in the monograph 'The Milpillas Mine' of the ‘Mineralogical Record‘ magazine on page 596 in the volume 52, number 5, September-October 2021
Milpillas Mine, Cuitaca, Municipio Santa Cruz, Sonora Mexico (2008)
Specimen size: 5.5 × 3.4 × 1.8 cm = 2.17” × 1.34” × 0.71”
Main crystal size: 1.2 × 0.5 cm = 0.47” × 0.20”
|
