A novelty at Tucson 2020. Matrix group of outstanding Olivenite crystals, one of them clearly dominant, flattened, with very well defined faces and edges and perfect terminal faces, lustrous and very deep olive green. As on so many other occasions in Milpillas, among the best of the species. The sample has been noted and photographed in the monograph 'The Milpillas Mine' of the ‘Mineralogical Record‘ magazine on page 608 in the volume 52, number 5, September-October 2021 and in the Russian magazine ‘Mineral Observer’ on page 58 in the volume 25, number 2
Milpillas Mine, level 992, Cuitaca, Municipio Santa Cruz, Sonora Mexico (11-12/2019)
Specimen size: 1.9 × 1.4 × 1.3 cm = 0.75” × 0.55” × 0.51”
Main crystal size: 1.9 × 0.5 cm = 0.75” × 0.20”
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