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Thin Sections


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Ravar   contributed by Timur Kryachko   MetBul Link


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Photos by Timur Kryachko.   Copyright (c) Use allowed - include photographer's name.

What is a thin section?       What do all the colors mean?    
Thin section.   H4

TKW 1398 grams. Fall not observed. Found 29 March 2016, Kerman, Iran.

 


Timur writes:
BSD image obtained with an electron microscope Tescan Vega 3 SBU (Technograd, Moscow), and the element map.

Operator - Timur Kryachko.

Unusual chromic spinel spherical inclusion surrounded by phosphates. Composition of inclusion in percent:
MgO - 8.48
Al2O3 - 19.81
Cr2O3 - 47.40
FeO - 21.78
TiO2 - 1.02
The transparent polished section was made by Timur Kryachko


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Found at the arrow (green or red) on the map below
 


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Timur Kryachko
 1/14/2019 11:37:51 AM		 The composition of the "purple" mineral on the element map: P2O5 - 48.04; CaO - 44.76; MgO - 3,64; Na2O - 2.75; FeO - 0.80.
Ben Fisler
 1/14/2019 7:37:31 AM		 Very cool thin section. Which of the listed elements, rings the inclusion?
Graham Ensor
 1/14/2019 2:57:37 AM		 Thanks for sharing...indeed unusual inclusion.
 

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