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Species / Silicates / #0031

Aenigmatite

Silicates triclinic #0031

Aenigmatite is a mineral species described as sapphirine supergroup, single chain inosilicate mineral. It is classified under the Nickel-Strunz scheme and its reference data is listed below.

Formula Na₄[Fe²⁺₁₀Ti₂]O₄[Si₁₂O₃₆]
Strunz code 9.DH.40
Class Silicates
Crystal system triclinic
Type locality Naujakasik
Named after riddle
Streak brown
Aenigmatite specimen
Photo: Pedro Alves — CC BY 3.0 · Wikimedia Commons

Composition

O
37.14%
Fe
32.41%
Si
19.56%
Ti
5.56%
Na
5.34%

Molar mass 1723.124 g/mol

Physical

Mohs
Density
g/cm³