Carlfrancisite

carlfrancisite

Mn²⁺₃(Mn²⁺,Mg,Fe³⁺,Al)₄₂(As³⁺O₃)₂(As⁵⁺O₄)₄[(Si,As⁵⁺)O₄]₆[(As⁵⁺,Si)O₄]₂(OH)₄₂Chemical formula

TrigonalCrystal system

Facts

Chemical formula: Mn²⁺₃(Mn²⁺,Mg,Fe³⁺,Al)₄₂(As³⁺O₃)₂(As⁵⁺O₄)₄[(Si,As⁵⁺)O₄]₆[(As⁵⁺,Si)O₄]₂(OH)₄₂
Crystal system: Trigonal
Elements in formula: Manganese, Magnesium, Iron, Aluminium, Arsenic, Oxygen, Silicon, Hydrogen
Number of elements: 8
IMA status: Approved
Type locality: Kombat
Named after: Carl A. Francis