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0 item @ $0.00  

Mixed Minerals

Friday, 27 August 2021 10:00 AM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including manaksite and more from places like Palitra pegmatite, Mt. Kedykverpakhk, Lovozero Massif, Kola Peninsula, Russia.

SOLD
Manaksite - 41372
Manaksite - 41372

Manaksite

#41372
Locality
Palitra pegmatite, Mt. Kedykverpakhk, Lovozero Massif, Kola Peninsula, Russia 
Formula
KNaMn2+Si4O10 
Availability
Sold
Size
4 x 2 x 0.7 cm - Miniature 
Special Info
XRD Confirmed 
Special Info
EDS Confirmed 

Light pink crystalline mass. It comprises the entire specimen. Manaksite is found in ultra-agpaitic pegmatites. Ultra-agpaitic is a term used for compositions which are extremely rich in sodium and so little aluminum that ordinary alumino silicate minerals do not form. There is an entire paper written on this subect here: http://rruff.info/doclib/MinMag/Volume_61/61-407-485.pdf . It is very rare. Identified by Dr. Igor Petrov.


Manaksite

Formula
KNaMn2+Si4O10 
Crystal System
Triclinic 
Cleavage
Perfect, Perfect, None 
Luster
Vitreous (Glassy) 
Color
colorless, creamy white, rosy 
Streak
white 
Class
Triclinic - Pinacoidal 
Hardness
Special Info
XRD Confirmed
Special Info
EDS Confirmed

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