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Ferri-Obertiite - Rothenberg, Bell, Mendig, Mayen-Koblenz District, Rhineland-Palatinate, Germany (Type Locality) (#:MINS8381)

Extremely rare Ferri-obertiite in Light brown / beige needles.

Formula :
NaNa₂(Mg₃Fe³⁺Ti)Si₈O₂₂O₂
System: monoclinic Hardness:5 Rarity:extremely rare
Strunz id:VII/B.39-120 - ORGANIC COMPOUNDS
Name origin: The obertiite root name is for Prof. Roberta Oberti (born 1952 in Milan, Italy), University of Pavia, Italy, for her contributions to the crystal chemistry of amphiboles.

Specimen weight:8 gr.

Crystal size:sub-mm

Overall size: 30mm x 25 mm x 16 mm

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Ferri-Obertiite - Rothenberg, Bell, Mendig, Mayen-Koblenz District, Rhineland-Palatinate, Germany (Type Locality)

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