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Fizélyite : Ag5Pb14Sb21S48 , Jamesonite : Pb4FeSb6S14, Boulangerite : Pb5Sb4S11

How to use the mindat.org media viewer

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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 used for previous/next photo in a gallery, in an article or in search results. Keyboard shortcuts: use shift + the left and right arrow keys.

< and > in the bottom center are used for switching between the 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

Scalebar

If the field of view (FOV) is specified for the photo, the scalebar appears in the left bottom corner of the viewer. The scalebar is draggable and resizeable. Drag the right edge to resize it. Double click will reset the scalebar to it's default size and position. If the scalebar is in default position, double click will make it circular.

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

If a stereoscopic 3D image is opened in the viewer, the 3D button appears in the bottom right corner giving access to "3D settings" menu. The 3D images can be viewed in several ways:
- without any special equipment using cross-eyed or parallel-eyed method
- with stereoscope
- with anaglyph glasses.
- on a suitable 3D TV or monitor (passive 3D system)

For details about 3D refer to: Mindat manuals: Mindat Media Viewer: 3D

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.

Controls - photo comparison mode

If a photo with activated comparison mode is opened in the viewer, the button appears in the bottom right corner giving access to "Comparison mode settings" menu.

Several layouts are supported: slider and side by-side comparison with up to 6 photos shown synchronously on the screen. On each of the compared photos a view selector is placed, e.g.:  Longwave UV ▼. It shows the name of currently selected view and allows to select a view for each placeholder.

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)
spaceHide/dim titles and buttons
up arrowShow information box
down arrowHide information box
left arrowPrevious child photo
right arrowNext child photo
shift + left arrowPrevious image on the page
shift + right arrowNext image on the page


Copyright © Tamás Ungvári Collection
 
 
 
 
minID: 7AE-EGK

Fizélyite : Ag5Pb14Sb21S48 , Jamesonite : Pb4FeSb6S14, Boulangerite : Pb5Sb4S11

Copyright © Tamás Ungvári Collection  - This image is copyrighted. Unauthorized reproduction prohibited.

Boulangerite-jamesonite pseudomorphs? with grey fizelyite.
Width of the picture:15mm

This photo has been shown 1045 times
Photo added:9th Jul 2005
Dimensions:640x480px (0.31 megapixels)
Camera:CANON PowerShot A85

Data Identifiers

Mindat Photo ID:34811 📋 (quote this with any query about this photo)
Long-form Identifier:mindat:1:4:34811:0 📋
GUID:acba6940-ed85-4b3d-bc70-e0c0c3a7a1ac 📋
Specimen MinID7AE-EGK (note: this is not unique to this photo, it is unique to the specimen)

Discuss this Photo

PhotosFizélyite - Herja Mine, Chiuzbaia, Baia Mare, Maramureș Co., Romania

12th Jun 2012 00:50 UTCRob Woodside 🌟 Manager

This unfortunate photo has two complaints. One by Peter Haas in 2005 and one by me in 2010. Peter complained about the original description and unaware of Peter's complaint or the original description, I chimed in. In Peter's complaint he says the fuzzy grey has been well analysed as Jamesonite. I first saw this material on Ross Lillie's website. I contacted him and he was heart broken that these were not Fizelyite, but an analysed boulangerite pseudo after fizelyite. They would have been Killer Fizelyites. So what is with this material? Some of it seems to be analysed as Boulangerite and some as Jamesonite. How about the Jamesonite included Calcites from Herja? An EDS will sort the two by the tiny but above background Fe peak in Jamesonite.

12th Jun 2012 01:37 UTCReiner Mielke Expert

Hello Rob,


Are all of these fuzzy Fizelyites pseudos? I've seen some for sale which claim they are jamesonite/boulangerite on Fizelyite.

12th Jun 2012 06:40 UTCJean-Francois Carpentier Expert

Hi


I have a specimen which does much resemble that of Peter Haas (http://www.mindat.org/photo-31746.html)

In my case, some of the prismatic crystals in the radial fans (to 15 mm) of "Fizelyite" were indeed Fizleyite fully coated by felted powdery Boulangerite / Plumosite (no Jamesonite) and Semseyite (both species confirmed by SEM-EDX). In other crystals of the fans, it looked that the pseudomorphosis (?) to Boulangerite/Semseyite was complete, as no more Fizleyite was detected. There was additional small Freibergite crystals on Sphalerite ore.


jf

12th Jun 2012 18:44 UTCRob Woodside 🌟 Manager

Hi Reiner and JF


Apparently this material was the last gasp of Herja and came out just before it closed. The fuzzyness is a sure sign of pseudomorphosis and JF's report is the first I've heard of a partial pseudo. Looking at Peter's photo:





There's a broken xl on the lower right in the fan that looks like the partial pseudo that JF describes. Historically (Dana 7) the fizelyite from Herja were unterminated lathes. Semseyite which always? was associated was more tabular with equant arrow like terminations or cockscomb growths. Historic specimens had no fuzz and the fizelyite was greyer than the black semseyite. The fan in Peter's photo is reminiscent of a semseyite cockscomb but the xls are longer like fizelyite. The Van Silver terminated Fizelyites are not so equant with one of the terminal faces much larger. So possibly Fizelyite and Semseyite came in at a low temperature and a higher temperature later event brought in the tetrahedrite and caused the pseudomorphosis to Plumosite and? Semseyite. JF, was there semseyite in the fuzz on Fizelyite. I'm asking if the semseyite was an original mineral or part of the pseudomorph? Plumosite is a well chosen name as some of it was Boulangerite and some Jamesonite and that seems the case here.


Freibergite has had a sad history of being an Argentian Tetrahedrite (Dana 7) to a full species status today. Most older labelled Friebergites are tetrahedrites with a bit of Ag. Over 20 years ago when I was looking at this I remember the figure of merit being 28% by weight Ag. (The Van Silver Tetrahedrites came in at 26% and have red internal lights like Binnite). Since then there has been an almost pure Ag tetrahedrite from Russia. There are a couple of metal sites in the Tetrahedrite structure, but I think they have been lumped to define the current Tetrahedrite nomenclature. What is the wt % of Ag needed these days for real Freibergite?

12th Jun 2012 19:41 UTCNicu Pascanu Expert

Hi,


Thanks Rob for this warning. Sure, the problem can not be generalized. It might say that these partial / total pseudomorphosis depend on the density of mineralization solutions, temperature etc. Also that individual crystals do not seem ''prone'' to these transformations. On the other hand, the Fizelyite radial aggregates seem to be affected. Specimen ID 427298, 427296 (n. 493 ), self collected and analized much later show no sign of change, aggregates are strongly deformed, poorly coverage, association with small Baryte and Calcite as well. Certainly, another occurrence. About the specimen discussed, that's strange the thiny external cortex Boulangerite between radial Fizelyite.

About ''Jamesonite included calcites from Herja''-certainly the Herja black calcites appearance, with their slightly curved shapes, as a consequence of jamesonite rich solution formation. Many specimens were identified and confirmed as Virgil Ghiurcă (2005) studies.


Regards,
 
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