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Oxides & Hydroxide

Magnesiohögbomite-2N2S

(Mg,Fe,Al,Ti)₂₂(O,OH)₃₂
Hardness6
Crystal systemHexagonal
ClassOxides & Hydroxide
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Magnesiohögbomite-2N2S

Magnesiohögbomite-2N2S is an IMA-recognized mineral species in the oxides & hydroxide class, with the chemical formula (Mg,Fe,Al,Ti)₂₂(O,OH)₃₂.

It crystallizes in the hexagonal crystal system (space group P6_3mc). It is a member of the Hogbömite-Magnesiohogbömite structural group.

Key properties: Mohs hardness 6; specific gravity 4.95; Black streak; Metallic, splendent luster; optically biaxial.

IMA symbol Mhög-2N2S, IMA status: approved, named in 1916.

Found as a primary mineral in contact metamorphic manganese ores, and a secondary weathering product of earlier manganese-bearing minerals.

It is found associated with Bixbyite, braunite, piemontite, other manganese oxides.

The name refers to Dr. Thomas Henry Holland (1868–1947), Director of the Indian Geological Survey. All rights reserved. No part of this publication may be reproduced.

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 M minerals or help write this entry.