Mineral Factbook

Carletonite

KNa4Ca4Si8O18(CO3)4(OH)·H2OIMA symbol: Ctoapproved

Carletonite is a silicate mineral with the formula KNa4Ca4Si8O18(CO3)4(OH)·H2O. It has a calculated density of 2.4 g/cm3. Its streak is white.

Photos

Carletonite specimen photo
Animalculum · CC BY 4.0 · Commons
Carletonite specimen photo
Géry PARENT · CC0 · Commons
Carletonite specimen photo
Erongoguy · CC BY-SA 4.0 · Commons
Carletonite specimen photo
Robert M. Lavinsky · CC BY-SA 3.0 · Commons

Crystallography

Space groupP 4/m b m
Cell (Å, °)a = 13.178, b = 13.178, c = 16.695; α = 90, β = 90, γ = 90
Cell volume2899.25 ų, Z = 4
Axial ratios1.0000:1:1.2669calculated from COD 9000278
Source structureCOD 9000278 (American Mineralogist, 1972) — 1 of 2 structures

Physical properties

Density (calculated)2.4 g/cm³calculated from COD 9000278
Streak
whitesingle sourceWikidata (CC0)

Chemistry (calculated)

Molecular weight1079.1 g/molcalculated from the IMA formula
Composition (wt%)K 3.62%, Na 8.52%, Ca 14.86%, Si 20.82%, O 47.45%, C 4.45%, H 0.28%

Classification

Nickel-Strunz (10th)9.EB.20Wikidata (CC0)
Nickel-Strunz (9th)9.EB.20Wikidata (CC0)