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Emmerichite Lileyite & Günterblassite

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SKY171014

Emmerichite Lileyite & Günterblassite

Type Locality

Description Tabs

Description
Locality: 
Rother Kopf, Roth, Gerolstein, Vulkaneifel, Rhineland-Palatinate, Germany
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 1.3 × 1.2 cm
Description

Exceptional sample of very rare and new minerals composed by: Emmerichite (IMA 2013-064) (brown tabular transparent crystals), some of them intergrown with zoned Lileyite (IMA 2011-021) and associated to bigger white tabular gunterblassite crystals (IMA 2011-032). Also present is altered gotzenite. Finally very nice skeletal perowskite is present!. A combo of 5 species: three recently described IMA minerals + two additional minerals in one sample ! Very nice under the microscope !

Mineral Data
What's on the rock

Emmerichite

Formula: 
Ba2Na(Na,Fe2+)2(Fe3+,Mg)Ti2(Si2O7)2O2F2
Hardness: 
0.0
Type Locality: 
Rother Kopf, Roth, Gerolstein, Eifel, Rhineland-Palatinate, Germany

Lileyite

Formula: 
Ba2(Na,Fe,Ca)3MgTi2(Si2O7)2O2F2
Strunz: 
9.BE.25
Hardness: 
3.0 - 4.0
Colour: 
Brown
Streak: 
White
Type Locality: 
Löhley (Liley; Meerfeld Quarry; Slabik Quarry; Scheerer Quarry), Üdersdorf, Daun, Eifel, Rhineland-Palatinate, Germany

Günterblassite

Formula: 
(K,Ca,Ba)2(Fe,Ca,Mg,Na)[(Si,Al)13O25(OH)4]·7H2
Hardness: 
0.0
Type Locality: 
Rother Kopf, Roth, Gerolstein, Eifel, Rhineland-Palatinate, Germany

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