Tucson 2020 Update

Page 1 of 1

TR13AL1: A novelty at Tucson 2020. Fan-shaped growths of short prismatic crystals of light violet Creedite, with very sharply pointed terminal faces, good luster, on matrix, with green Fluorite. This specimen is quite different from those that were known from this locality in recent years, although there are similar pieces from this mine in some old collections, which supports the indications that this find was made in old galleries of the mine.
Navidad Mine, Abasolo, Rodeo, Municipio de Rodeo, Durango  Mexico (10-12/2019)

Specimen size: 8 × 6.3 × 3.2 cm = 3.15” × 2.48” × 1.26”

Main crystal size: 1.8 × 0.4 cm = 0.71” × 0.16”

TT93AL1: A novelty at Tucson 2019. Druze of small elongated Dioptase crystals, with rhombohedral terminations, transparent and with bright luster, on matrix with pale blue shattuckite. Dioptase is a rarity in Milpillas, another surprise like many to which this locality has accustomed us.
The sample has been noted and photographed in the monograph 'The Milpillas Mine' of the ‘Mineralogical Record‘ magazine on page 585 in the volume 52, number 5, September-October 2021 and in the magazine ‘Mineral Up’ on page 42 of the 2020/02 edition.
Milpillas Mine, level 1100, Cuitaca, Municipio Santa Cruz, Sonora  Mexico (2019)

Specimen size: 6.1 × 4.4 × 3.1 cm = 2.40” × 1.73” × 1.22”

Main crystal size: 0.1 × 0.1 cm = 0.04” × 0.04”