Toyohaite : Ag1+(Fe2+0.5Sn4+1.5)S4, Franckeite : Fe2+(Pb,Sn2+)6Sn4+2Sb2S14

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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
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[, ]Backwards/forwards one frame (Animation only)
up arrowShow information box
down arrowHide information box
left arrowPrevious image/media page
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spaceHide/dim titles and buttons

Copyright © Rob Lavinsky & irocks.com
minID: F1U-4WA

Toyohaite : Ag1+(Fe2+0.5Sn4+1.5)S4, Franckeite : Fe2+(Pb,Sn2+)6Sn4+2Sb2S14

Copyright © Rob Lavinsky & irocks.com  - This image is copyrighted. Unauthorized reproduction prohibited.
Dimensions: 5.1 cm x 2.3 cm x 1.6 cm

5.1 x 2.3 x 1.6 cm. Ex. Dr. Werner Paar collection. Toyohaite, a silver iron tin sulfosalt, is very rare species. This specimen features several sub-mm but eye-visible brown crystals clearly contrasted upon the sparkling franckeite matrix. This is the Ag-rich end member of the rhodostannite-toyohaite solid solution series. A very rare mineral originally described from the Toyoha mine in Japan where it occurred in microscopic grains only. For the first time, a new occurrence in Argentina provides eye-visible crystals of this species (to 1 mm), and associated with other rare minerals like pirquitasite, cylindrite and fizelyite-ramdohrite (probably present but not identified as such by analysis). The mineral has a "pseudo-cubic" shape and a color similiar to pyrrhotite.Only very few specimens with crystals were recovered, mostly ending up with the specialist researcher Dr. Werner Paar in Austria for further study; and chances to find additional material are said to be almost none. Crystals from this pocket were micro-probed in his lab, and almost exactly corresponds to the end member composition.

This photo has been shown 77 times
Photo added:14th Dec 2015
Dimensions:432x432px (0.19 megapixels)

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