Alaska Mine, Poughkeepsie Gulch, San Juan County, Colorado, USA

Acapulco Adit. Prismatic 0.4 mm long crystal with Quartz. Collected and ID’d by Bart Cannon and part of a single small piece that he found. Robert Meyer specimen and photo.

© 2004 Robert O. Meyer

Lead-grey mass of "alaskaite", which is a mixture of minerals like gustavite, pavonite, tetrahedrite and others (?) (cf. Thompson, 1950).

© Uwe Haubenreisser

Microscopic inclusions of mummeite in mounted and polished section with aikinite. Full microprobe analysis by Bart Cannon (#50802a) - see child photo. Part of the type material collected by Bart Cannon in 1984, and purchased from him in 2008.

© Andrew Hodgson

5.1 x 2.0 x 0.7 cm. Mineral specimens of any type are very rare from this most obscure San Juan County Mine. This elegant combination features scattered clusters of tiny, flattened, pastel-pink rhodochrosite rhombs attached to both sides of a very aesthetic pristine floater cluster of intergrown quartz crystals. The large compound crystal is ...

© Rob Lavinsky & MineralAuctions.com

5.1 x 2.0 x 0.7 cm. Mineral specimens of any type are very rare from this most obscure San Juan County Mine. This elegant combination features scattered clusters of tiny, flattened, pastel-pink rhodochrosite rhombs attached to both sides of a very aesthetic pristine floater cluster of intergrown quartz crystals. The large compound crystal is ...

© Rob Lavinsky & MineralAuctions.com

Full microprobe analysis by Bart Cannon (#50802a) of type material of mummeite.

© Andrew Hodgson

Label for part of the type material collected by Bart Cannon in 1984, and purchased from him in 2008.

© Andrew Hodgson