IMA mineral species

Chestermanite

Mg₂(Fe³⁺,Mg,Al,Sb⁵⁺)O₂(BO₃)

Borate mineral.

Chestermanite specimen
Chestermanite.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formulaMg₂(Fe³⁺,Mg,Al,Sb⁵⁺)O₂(BO₃)
ElementsMg, Fe, Al, Sb, O, B
Crystal systemOrthorhombic
Mohs hardness—
Density—
Streak—
Color—
IMA symbolCsm
Nickel–Strunz class6.AB.40

“—” means no reliable value in Wikidata yet. Check Mindat for full data.