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Perrierite-(La)

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JYJ619003

Perrierite-(La)

Description Tabs

Description
Locality: 
Niedermendig, Mendig, Eifel, Rhineland-Palatinate, Germany
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.1 × 1.6 × 1.1 cm
Description

Fine and rare black perrierite-La with a red pyrochlore crystal attached. 

References: Chukanov, N.V., et al. (2011): Perrierite-(La), IMA 2010-089. CNMNC Newsletter No. 9, August 2011, page 2537; Mineralogical Magazine, 75, 2535-2540; Chukanov, N.V., Blass, G., Pekov, I.V., Belakovskiy, D.I., Van, K.V., Rastsvetaeva, R.K., Aksenov, S.M. (2011): Perrierite-(La) (La,Ce,Ca)4Fe2+(Ti,Fe)4(Si2O7)2O8 - a new mineral species from volcanic region Eifel, Germany. Zapiski RMO, 140, 34-44.

Mineral Data
What's on the rock

Perrierite-(La)

Formula: 
(La,Ce,Ca)4(Fe,Mn2+,Mg)Fe3+2(Ti,Fe3+)2(Si2O7)2O8
Strunz: 
9.BE.70
Hardness: 
6.0 - 0.0
Colour: 
Black
Streak: 
Brown
Type Locality: 
In den Dellen quarries, Niedermendig, Mendig, Laach lake volcanic complex, Eifel, Rhineland-Palatinate, Germany