The Core of Tucson Show Virtual 2022

TC2260EAA

Group of water-clear Quartz crystals, one of them dominant with a flattened habit and a very visible "faden" thread.
The specimen comes from the Alain Martaud collection, whose label we will send to the buyer.

Le Freney-d'Oisans, Oisans-Romanche, Grenoble, Isère, Auvergne-Rhône-Alpes France (1980)

Specimen size: 9.3 x 7.7 x 5.6 cm

Main crystal size: 8 x 4.1 cm

Former collection of Alain Martaud

TC290EXR

Group of very sharp Fluorite crystals, between transparent and translucent, with good luster and an intense blue color with a fine geometric zoning of violet color on the edges, an unusual color for this mine.
The specimen comes from a limited find and was part of the Alain Martaud collection, whose label we will send to the buyer.

La Barre Mine, Saint-Jacques-d'Ambur, Pontgibaud, Saint-Ours, Riom, Puy-de-Dôme Department, Auvergne-Rhône-Alpes France (2019)

Specimen size: 5.4 x 4.2 x 4.1 cm

Main crystal size: 2.1 x 2.1 cm

Former collection of Alain Martaud

TC260EMC

Group of light brown, very sharp Axinite-(Fe) crystals, two of them clearly dominant and aerial, translucent, lustrous, with small aggregates of Epidote crystals.
The specimen comes from the Alain Martaud collection, whose label we will send to the buyer.

Chamrousse, Grenoble, Isère, Auvergne-Rhône-Alpes France

Specimen size: 4.2 x 3.1 x 2.2 cm

Main crystal size: 1.9 x 1.3 cm

Former collection of Alain Martaud

TC2290MCV

Bright, light green spherical aggregates of Cuprodongchuanite, in a rock matrix partially covered by earthy aggregates of white Calcite. Cuprodongchuanite is a new species approved by the IMA, with reference number IMA 2021-065, but still pending publication. A find from the end of the year 2021, it is a curious phosphate of Pb, Cu and Zn, the copper analog of Dongchuanite, and comes from the type locality (TL)

Sanguozhuang, Dongchuan District, Kunming Prefecture, Yunnan Province China (28/12/2021)

Specimen size: 2.7 x 2 x 2 cm

Main crystal size: 0.1 x 0.1 cm

Type locality

TC2260MDX

Bright, light green spherical aggregates of Cuprodongchuanite implanted on a rock matrix covered by sky-blue botryoidal crystals of Hemimorphite. The color palette is completed with an intense blue corresponding to Veszelyite crystals. Cuprodongchuanite is a new species approved by the IMA, with reference number IMA 2021-065, but still pending publication. A find from the end of the year 2021, it is a curious phosphate of Pb, Cu and Zn, the copper analog of Dongchuanite, and comes from the type locality (TL)

Sanguozhuang, Dongchuan District, Kunming Prefecture, Yunnan Province China (28/12/2021)

Specimen size: 2.5 x 2.2 x 1.2 cm

Main crystal size: 0.1 x 0.1 cm

Type locality

TC2265MYF

Bright, light green spherical aggregates of Cuprodongchuanite implanted on a rock matrix covered by sky-blue botryoidal crystals of Hemimorphite. The color palette is completed with an intense blue corresponding to Veszelyite crystals in fan-shaped aerial growths. Cuprodongchuanite is a new species approved by the IMA, with reference number IMA 2021-065, but still pending publication. A find from the end of the year 2021, it is a curious phosphate of Pb, Cu and Zn, the copper analog of Dongchuanite, and comes from the type locality (TL)

Sanguozhuang, Dongchuan District, Kunming Prefecture, Yunnan Province China (28/12/2021)

Specimen size: 3.8 x 3.6 x 2.9 cm

Main crystal size: 0.2 x 0.1 cm

Type locality

TC2340MGH

Bright, light green spherical aggregates of Cuprodongchuanite implanted on a rock matrix covered by sky-blue botryoidal crystals of Hemimorphite. The color palette is completed with an intense blue corresponding to Veszelyite crystals forming aerial growths and isolated in the mineralized vug. Cuprodongchuanite is a new species approved by the IMA, with reference number IMA 2021-065, but still pending publication. A find from the end of the year 2021, it is a curious phosphate of Pb, Cu and Zn, the copper analog of Dongchuanite, and comes from the type locality (TL)

Sanguozhuang, Dongchuan District, Kunming Prefecture, Yunnan Province China (28/12/2021)

Specimen size: 8 x 7.1 x 4.2 cm

Main crystal size: 0.1 x 0.1 cm

Type locality