IMA mineral species

Congolite

(Fe²⁺,Mg)₃(B₇O₁₃)Cl

Borate mineral.

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

Properties

Chemical formula(Fe²⁺,Mg)₃(B₇O₁₃)Cl
ElementsFe, Mg, B, O, Cl
Crystal systemTrigonal
Mohs hardness—
Density—
Streak—
Color—
IMA symbolCgl
Nickel–Strunz class6.GA.10

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