TAX50CD4: Azurite crystals on matrix, grouped in aggregates forming rosettes of slightly curved but very sharp crystals. With excellent luster and the best deep 'electric blue' color so characteristic of the Milpillas mine in Mexico, which is now closed.
A specimen of very high quality in which the contrast between the white matrix and the blue Azurite crystals is even more highlighted by the presence of grass-green fibrous Malachite crystals.
It should be noted that the presentation of Azurite crystals as rosettes is not common in Milpillas.
Milpillas Mine, level 1280, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2016)

Specimen size: 9.7 × 6.6 × 3.2 cm = 3.82” × 2.60” × 1.26”

Main crystal size: 2.2 × 1.1 cm = 0.87” × 0.43”