#matildite

[mineralsandsomerocks]

Matildite on Chalcopyrite in matrix

Locality: Clara Mine, Oberwolfach, Freiburg Region, Baden-Württemberg, Germany

Tiny, octahedral crystal of silver-coloured, metallic Matildite mounted on a larger crystal of brassy Chalcopyrite in a milky white Calcite matrix.

[mineralsandsomerocks]

Nickeline (pink/peach) and Maucherite (pinkish grey) with a rim of Gersdorffite (bluish grey) overgrown by intergrown Parkerite (light grey, twinning) and Hauchecornite (dull pink), then overgrown by Matildite (darker grey, rough texture).

Locality: Easter-Duffy Deposit, East Arm Region, Greater Slave Lake, NWT, Canada

Reflected Plane Polarized Light, 200X Magnification

Quick laundry list of minerals most people will have never heard of!

[underthescopemineral]

Matildite

AgBiS2

Locality:

Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany

Field of View: 2.08 mm

 Photo: Michael Förch

Matildite is a trigonal sulfide of silver and bismuth, usually occurring as grey to black granular masses that are opaque with a metallic luster. Formed in hydrothermal deposits at medium to high temperatures and in pegmatites.

[wigmund]

From Mindat.Org Photo Of The Day; January 31, 2017:

Matildite: AgBiS2; Rhabdophane-(Ce): CePO4·H2O; Chalcopyrite: Cu1+Fe3+S2

Locality: Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany

“A wonderful composition between a dark grey metallic matildite crystal, yellow twinned metallic chalcopyrite crystals and a white globular rhabdophane-(Ce).” Collection: Heinz Förch; Photo: Michael Förch; Analyzed by Dr. Gröbner, Clausthal-Zellerfeld

[ifuckingloveminerals]

Matildite

Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany