Carletonite on Magnesio-arfvedsonite
KNa
4
Ca
4
Si
8
O
18
(CO
3
)
4
(OH,F) ・ H
2
O / NaNa
2
(Mg
4
Fe
3+
)Si
8
O
22
(OH)
2
Mont St. Hilaire, Quebec, Canada
