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Silicate

Scheuchzerite

NaMn²⁺₉Si₉V⁵⁺O₂₈(OH)₄
Hardness2.5
Crystal systemTriclinic
ClassSilicate
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Scheuchzerite specimen

Scheuchzerite Locality: Valgraveglia Mine (Gambatesa Mine), Reppia, Graveglia Valley, Ne, Genova Province , Liguria , Italy ( Locality at mindat.org ) Field of view 4 mm. Specimen and photo Leon Hupperichs. — Photo: Leon Hupperichs · CC BY-SA 3.0

Scheuchzerite

Scheuchzerite is an IMA-recognized mineral species in the silicate class, with the chemical formula NaMn²⁺₉Si₉V⁵⁺O₂₈(OH)₄.

It crystallizes in the triclinic crystal system (space group P-1).

Key properties: Mohs hardness 2.5; specific gravity 3.5; Yellow-orange streak; Vitreous luster; optically biaxial.

IMA symbol Shz, IMA status: approved, named in 2004.

Found in a metamorphosed syn-sedimentary exhalative Mn deposit.

It is found associated with Saneroite, tiragalloite.

The mineral was named to honor Swiss naturalist Johann Jakob Scheuchzer (1672-1733), junior physician of the city of Zürich, curator of the Kunstkammer - a cabinet of natural history and curiosities.

Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet. Browse more S minerals or help write this entry.