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Mineral A

VS

Mineral B

F

Ferrotaaffeite-6N'3S

Name

—

BeFe²⁺₂Al₆O₁₂

Formula

—

Mineral Species

Entry type

—

Oxides & Hydroxides

Chemical class

—

Hexagonal

Crystal system

—

8–8.5

Mohs hardness

—

4.07

Specific gravity

—

—

Streak

—

Vitreous

Luster

—

—

Cleavage

—

R-3m

Space group

—

Taaffeite-Ferrotaaffeite

Structural group

—

Ftf-6N'3S · Approved

IMA

—

1979

Named in

—

Light green; gray in reflected light

Typical colors

—

Be · Fe · Al · O

Elements

—