Luxembourgite : AgCuPbBi4Se8, Clausthalite : PbSe, Goethite : α-Fe3+O(OH), Favreauite : PbBiCu6O4(SeO3)4(OH)·H2O, Chalcomenite : CuSeO3·2H2O

How to use the mindat.org media viewer

Click/touch this help panel to close it.

Welcome to the mindat.org media viewer. Here is a quick guide to some of the options available to you. Different controls are available depending on the type of media being shown (photo, video, animation, 3d image)

Controls - all media types

Zoom in and out of media using your mousewheel or with a two-finger 'resize' action on a touch device.

Use the mouse or your finger to drag the image or the view area of the image around the screen.

< and > at the left and right hand side of the screen move forwards and backwards for the other images associated with the media you selected. Usually this is for further photos of the same specimen. Keyboard shortcuts: use the left and right arrow keys.

> in the bottom center, raises the information box giving details and further options for the media, < at the top of this box then hides it. Keyboard shortcuts: use the up and down arrow keys.

? opens this help window. Keyboard shortcuts: use the H key or the ? key.

Other keyboard shortcuts:

1Fit image to screen
2Fill screen with image
5Display at full resolution
<Make background darker
>Make background lighter
spaceHide/dim titles and buttons

Controls - Video

Video files have a standard set of video controls: - Reset to start, - Skip back, - Play, - Pause, - Skip forwards. Keyboard shortcuts: You can stop/start video play with the P key.

Controls - Animation (Spin Rotation)

Animation (usually 360 degree spin rotations) have their own controls: - enable spin mode. Note that while images are loading this option will not be available but will be automatically activated when the animation has loaded. Once active you can spin the image/change the animation by moving your mouse or finger on the image left/right or by pressing the [ or ] keys.

The button switches to move mode so that you can use your mouse/fingers to move the image around the screen as with other media types.

The button, or the P key will start playing the animation directly, you can interrupt this by using the mouse or finger on the image to regain manual movement control.

Controls - 3D Stereoscopic images

Stereoscopic 3D image viewing requires a suitable 3D television or monitor correctly configured for your computer. Passive 3D systems such as LG 3DTVs are the easiest to configure for this.

To enable/disable 3D stereo display of a compatible stereo pair image press the 3 key. If the left/right images are reversed on your display (this often happens in full-screen mode) press the 4 key to reverse them.

Summary of all keyboard shortcuts

1Fit image to screen
2Fill screen with image
3Switch to 3D display of stereo pair
4Switch left/right images in 3D mode
5Display at full resolution
<, >Make background darker/lighter
H or ?Show/hide this help page
PPlay/Pause Video or Animation
[, ]Backwards/forwards one frame (Animation only)
up arrowShow information box
down arrowHide information box
left arrowPrevious image/media page
right arrowNext image/media page
spaceHide/dim titles and buttons

Copyright © Günter Grundmann, Detmold
minID: GQY-QC7

Luxembourgite : AgCuPbBi4Se8, Clausthalite : PbSe, Goethite : α-Fe3+O(OH), Favreauite : PbBiCu6O4(SeO3)4(OH)·H2O, Chalcomenite : CuSeO3·2H2O

Copyright © Günter Grundmann, Detmold  - This image is copyrighted. Unauthorized reproduction prohibited.
Field of View: 0.5 mm

Luxembourgite in association with clausthalite (bright), partially altered by goethite (grey). Reflected light digital image, width of photo 0.5 mm. Luxembourgite, AgCuPbBi4Se8, has been recently approved by the IMA-CNMNC (Philippo et al. 2019).

Note that El Dragón also contains abundant grains representing solid solutions between watkinsonite and luxembourgite. Noteworthy, luxembourgite from El Dragón is chemically closer to ideal composition than is the type material (cf. Grundmann & Förster 2017, their Table 3; see also Paar et al. 2012).

Also, a third locality for luxembourgite must be added, namely Schlema-Alberoda in the Western Erzgebirge, Germany. Watkinsonite analyzes in Förster et al. 2005 (Table 1) show that luxembourgite is also detected there.


Förster, H.-J., Rhede, D. and TISCHENDORF, G. (2005) Mineralogy of the Niederschlema–Alberoda U–Se-polymetallic deposit, Erzgebirge, Germany. Watkinsonite, nevskite, bohdanowiczite and other bismuth minerals. – Canad. Mineral., vol. 43, No. 3, p. 899–908.

Förster, H.-J., Bindi, L., & Stanley, C.J. (2016a) Grundmannite, CuBiSe2, the Se-analogue of emplectite: A new mineral from the El Dragón mine, Potosí, Bolivia. European Journal of Mineralogy 28, 467–477.

Grundmann, G. & Förster, H.-J. (2017) Origin of the El Dragón selenium mineralization, Quijarro province, Potosí, Bolivia. Minerals 7, No. 68.

Paar, W.H., Cooper, M.A., Moёlo, Y., Stanley, C.J., Putz, H., Topa, D., Roberts, A.C., Stirling, J., Raith, J.G., & Rowe, R. (2012) Eldragόnite, Cu6BiSe4(Se)2, a new mineral species from the El Dragόn mine, Potosí, Bolivia, and its crystal structure. Canadian Mineralogist 50, 281−294.

Philippo, S., Hatert, F., Bruni, Y. & Vignola, P. (2019) Luxembourgite, IMA 2018-154. CNMNC Newsletter No. 49, June 2019, page xxx; Mineralogical Magazine 83, 323–328.

G. Grundmann collection and photo.

This photo has been shown 20 times
Photo added:11th Sep 2019
Dimensions:5472x3648px (19.96 megapixels)
Date/Time of Photo:1st Jan 2000 00:03:06
Camera:CANON EOS 70D
Software:Windows Photo Editor 10.0.10011.16384
Exposure time:1/60s
ISO speed:5000
矿物 and/or 产地  
版权所有© mindat.org1993年至2020年,除了规定的地方。 Mindat.org全赖于全球数千个以上成员和支持者们的参与。
隐私政策 - 条款和条款细则 - 联络我们 Current server date and time: 2020.2.16 21:40:45