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Columbite-(Fe) In Albite & Lepidolite

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PJM142087

Columbite-(Fe) In Albite & Lepidolite

Description Tabs

Description
Locality: 
Londonderry Li Deposit, Nepean, Western Australia, Australia
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.1 × 4.4 × 4.2 cm
Description

Two lustrous black bladed ferrocolumbite at the contact between albite and pink lepidolite, associated are two green tourmaline crystals sections

 

Mineral Data
What's on the rock

Columbite-(Fe)

Formula: 
FeNb2O6
Strunz: 
4.DB.35
Hardness: 
6.0
Type Locality: 
Green's Well pegmatite (Green's Tank), Pilgangoora, Wallareenya Station, Port Hedland Shire, Western Australia, Australia...

Albite

Formula: 
NaAlSi3O8
Strunz: 
9.FA.35
Crystal System: 
Triclinic
Hardness: 
6.0 - 6.5
Streak: 
White
Type Locality: 
Finnbo (Finbo), Falun, Dalarna, Sweden

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
Earthstones Australia

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