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Oxides & Hydroxide

Magnesiohögbomite-6N12S

Mg₅Al₁₁TiO₂₃(OH)
Hardness6.5
Crystal systemHexagonal
ClassOxides & Hydroxide
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Magnesiohögbomite-6N12S

Magnesiohögbomite-6N12S is an IMA-recognized mineral species in the oxides & hydroxide class, with the chemical formula Mg₅Al₁₁TiO₂₃(OH).

It crystallizes in the hexagonal crystal system (space group R3m). It is a member of the Hogbömite-Magnesiohogbömite structural group.

Key properties: Mohs hardness 6.5; specific gravity 3.87; Brown streak; Vitreous luster; optically uniaxial.

IMA symbol Mhög-6N12S, IMA status: approved, named in 2020.

Found in calcite “vein-dikes” cutting marble.

It is found associated with Magnesiohögbomite-2N3S, spinel, corundum, diopside, magnesio-hastingsite, pargasite, clinochlore, calcite.

Identifies a mineral with Ti dominant in the N module (rootname högbomite), Mg dominant in the S module (prefix magnesio-), and 6 and 12 as the total number of N and S modules.

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.