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Hydrokenopyrochlore

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SMM725490

Hydrokenopyrochlore

Rare mineral from Type Locality
New Mineral type

Description Tabs

Description
Locality: 
Antandrokomby Pegmatite, Manandona Valley, Ambositra, Amoron'i Mania, Madagascar
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 2 × 2 cm
Description

Beautiful, pale gray, prismatic sharp crystals group of hydrokenopyrochlore and small very nice pink elbaite crystals. The specimen comes from a small batch of few samples XRD analyzed. Very high quality sample for this rare specie! Hydrokenopyrochlore is a new member (IMA 2017-005) of Pyrochlore Group> Pyrochlore Supergroup, known only in the type locality: Antandrokomby, Madagascar.

Reference: ▪ Biagioni, C., Meisser, N., Nestola, F., Pasero, M., Bobyr, M., Roth, P., Schnyder, C., Gieré, R. (2018): Hydrokenopyrochlore, (□,#)2Nb2O6·H2O, a new species of the pyrochlore supergroup from the Sahatany Pegmatite Field, Antananarivo Province, Madagascar. ... 

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Mineral Data
What's on the rock

Hydrokenopyrochlore

Formula: 
2Nb2O4(OH)2(H2O)
Group Parent: 
Pyrochlore Group
Crystal System: 
Isometric
Type Locality: 
Antandrokomby, Manandona Valley, Sahatany, Antananarivo Province, Madagascar

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