Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Thomsonite-Ca from
Sar-e-Sang River, Sar-e-Sang, Kuran wa Munjan District, Badakhshan, Afghanistan


Locality type:River
Classification
Species:Thomsonite-Ca
Formula:NaCa2[Al5Si5O20] · 6H2O
Comments:Apparently the alteration that produces green Hauynes has continued with the gonnardite to produce mixtures of Gonnardite and Thompsonite. This Thompsonite is only known from the PXRD of Gonnardite with green Hauyne
Habit:alteration product
Colour:white
Quality for species:Poor for species, only of interest for locality collectors. (#)
Confirmation
Validity:Confirmed
Confirmation Methods:XRD
Associated Minerals Based on Photo Data:
Calcite9
Phlogopite9
Lazurite6
Afghanite6
Haüyne5
Gonnardite5
Pyrite3
Zeolite Group1
Data
Mineral Data:Click here to view Thomsonite-Ca data
Locality Data:Click here to view Sar-e-Sang River, Sar-e-Sang, Kuran wa Munjan District, Badakhshan, Afghanistan
Data Identifiers
Mindat Occurrence Record ID:880265
Long-form Identifier:1:3:880265:1
GUID (UUID V4):0
References
RWMW Collection
 
and/or  
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