Mineral Factbook

Winchite

܆(NaCa)(Mg4Al)Si8O22(OH)2IMA symbol: Wncredefined

Winchite is a silicate mineral with the formula ܆(NaCa)(Mg4Al)Si8O22(OH)2, crystallizing in the monoclinic system. It has a calculated density of 2.973 g/cm3.

Photos

Winchite specimen photo
Parent Géry · CC BY-SA 3.0 · Commons
Winchite specimen photo
Parent Géry · CC BY-SA 3.0 · Commons
Winchite specimen photo
Parent Géry · CC BY-SA 3.0 · Commons
Winchite specimen photo
Parent Géry · CC BY-SA 3.0 · Commons

Crystallography

Crystal systemmonoclinic crystal systemWikidata (CC0)
Space groupC 1 2/m 1
Cell (Å, °)a = 9.8076, b = 18.0004, c = 5.2804; α = 90, β = 104.575, γ = 90
Cell volume902.206 ų, Z = 2
Axial ratios0.5449:1:0.2933calculated from COD 9016910
Source structureCOD 9016910 (American Mineralogist, 2013) — 1 of 4 structures

Powder X-ray diffraction (calculated)

2θ (degrees, Cu Kα1)I/I₀ (max 100)
d (Å)2.7028.3963.1162.5313.382.939
I/I₀10066.265.758.65440.3

xrd-v1: CuKa1 1.5406A, 2theta 5-90, top10, Imax=100, no DW/PO. Computed from COD 9016910; idealized occupancies, no preferred orientation.

Physical properties

Density (calculated)2.973 g/cm³calculated from COD 9016910

Classification

Nickel-Strunz (10th)9.DE.20Wikidata (CC0)
Nickel-Strunz (9th)9.DE.20Wikidata (CC0)
Dana (8th)66.1.3b.1Wikidata (CC0)