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Masutomilite & Lepidolite

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POL815494

Masutomilite & Lepidolite

Analysed

Description Tabs

Description
Locality: 
Mokrusha Mine, Alabashka, Yuzhakovo, Sverdlovsk Oblast, Russian Federation
Class: 
Single Crystal
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.6 × 2.3 × 0.2 cm
Description

Fragment of zonal crystal of Li micas consist of rare Masutomilite & Lepidolite from classic locality. Analysed!

Mineral Data
What's on the rock

Masutomilite

Formula: 
(K,Rb)(Li,Mn3+,Al)3(AlSi3O10)(F,OH)2
Strunz: 
9.EC.20
Hardness: 
2.5
Type Locality: 
Tanakami-yama (Tanokami-yama), Otsu City, Shiga Prefecture, Kinki Region, Honshu Island, Japan

Lepidolite

Synonym Of: 

Mica Group

Formula: 
KLi2Al(Si4O10)(F,OH)2 to K(Li1.5Al1.5)(AlSi3O10)(F,OH)2
Group Parent: 
Mica
Hardness: 
2.5 - 3.5
Colour: 
Pink, light purple, light rose red
Streak: 
White

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