Jamesite

Sprays of micro, red-brown acicular Jamesite crystals are in the center and near the top of the specimen, as well as near the top of the specimen. The matrix is covered with yellow-golden crystalline Tsumcorite. Minor amounts of white Dolomite micro crystals are associated. Dark green micro crystals of Duftite are present in some of the shallow ...

© Eugene & Sharon Cisneros

A rich “thumbnail” size specimen, with four complete half-spheres of Jamesite, plus one partial sphere. The half-spheres measure ~ 2 mm to 2.5 mm in diameter. Several fan-like crystal groups are also present on one edge of the matrix. Associates noted: Tsumcorite, Duftite.

© Eugene & Sharon Cisneros, Mineralogical Research C

Red-brown Jamesite crystals overgrown with orange Goethite balls and green Duftite crystals. Collection and photo: Marko Burkhardt.

© Marko Burkhardt

A crystal group, roughly ball-like in shape, of lustrous orange-brown crystals with green Duftite and black Goethite. Also present on this specimen, but not depicted in this photograph are Tsumcorite and Dolomite. The multiple reflections made this a very difficult subject for photomicrography. The crystal group is 2 mm in length. Robert Meyer ...

© 2004 Robert O. Meyer

Triclinic needles of jamesite with duftite and dolomite. Brent Thorne specimen and photograph.

© Brent Thorne

Brown jamesite accompanied by some green duftite and shiny black goethite. Photo & collection Joachim Esche.

© Joachim Esche 2007

Brown jamesite together with massive green duftite. Photo & collection Joachim Esche.

© Joachim Esche 2007

A specimen rich with small red microcrystals of the rare arsenate Jamesite, from the type locality, in veins mixed with duftite and on contrasting white dolomite.

© Rob Lavinsky & irocks.com

4.3 x 3.5 x 2.8 cm. A specimen rich with small red microcrystals of the rare arsenate Jamesite, from the type locality, in veins mixed with duftite and on contrasting white dolomite.

© Rob Lavinsky & irocks.com

RRUFF Project Specimen ID: R060274 Locality: Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia Source: Michael Scott S100195 Reddish-brown bladed crystals coated with white dolomite and associated with dark green duftite

© Rruff Project

Red needles of Jamesite. Photo Germano Fretti. Collection Luigi Chiappino.

Exceptional specimen with several intergrown, orange-red-brown radial crystal sprays of Jamesite in an open vuggy area in the matrix on the left side of the specimen, as well as in the small open vuggy area at the top-right of the matrix (see the red arrow pointer area). Associates include yellow-orange color crystallized and crystalline ...

© Eugene & Sharon Cisneros

Jamesite crystals overgrown with goethite balls and duftite crystals.

© Matthias Heck

A single orange-brown fan, composed of flat-laying acicular Jamesite, was deposited upon a mass of crystalline, yellow-golden Tsumcorite. Dark green Duftite is associated, along with micro white Dolomite crystals. Co-type specimen of Jamesite. FOV on the photomicrograph is 1.6 mm. Obtained from Walter R. Kahn, Walter Kahn Minerals, Bayersoien, ...

© Eugene & Sharon Cisneros

Triclinic needles of jamesite with duftite and dolomite. Brent Thorne specimen and photograph.

© Brent Thorne 2020

Exceptional specimen with several intergrown, orange-red-brown radial crystal sprays of Jamesite in an open vuggy area in the matrix on the left side of the specimen, as well as in the small open vuggy area at the top-right of the matrix (see the red arrow pointer area). Associates include yellow-orange color crystallized and crystalline ...

© Eugene & Sharon Cisneros

Exceptional specimen with several intergrown, orange-red-brown radial crystal sprays of Jamesite in an open vuggy area in the matrix on the left side of the specimen, as well as in the small open vuggy area at the top-right of the matrix (see the red arrow pointer area). Associates include yellow-orange color crystallized and crystalline ...

© Eugene & Sharon Cisneros

Sprays of micro, red-brown acicular Jamesite crystals are in the center and near the top of the specimen. The matrix is covered with yellow-golden crystalline Tsumcorite. Minor amounts of white Dolomite micro crystals are associated. Dark green micro crystals of Duftite are present in some of the shallow open vuggy areas on the surface of the ...

© Eugene & Sharon Cisneros

A single orange-brown fan, composed of flat-laying acicular Jamesite, was deposited upon a mass of crystalline, yellow-golden Tsumcorite. Dark green Duftite is associated, along with micro white Dolomite crystals. Co-type specimen of Jamesite. FOV on the photomicrograph is 1.6 mm. Obtained from Walter R. Kahn, Walter Kahn Minerals, Bayersoien, ...

© Eugene & Sharon Cisneros