Zektzerite

NaLiZrSi₆O₁₅IMA symbol: Zekapproved

Zektzerite is a silicate mineral with the formula NaLiZrSi6O15, crystallizing in the orthorhombic system. It has a calculated density of 2.784 g/cm3. Its streak is white.

Photos

Zektzerite specimen photo — Robert M. Lavinsky · CC BY-SA 3.0 · Commons

Crystallography

Crystal system	orthorhombic crystal systemWikidata (CC0)
Space group	C m c e
Cell (Å, °)	a = 14.33, b = 17.354, c = 10.164; α = 90, β = 90, γ = 90
Cell volume	2527.61 Å³, Z = 8
Axial ratios	0.8257:1:0.5857calculated from COD 9000626
Source structure	COD 9000626 (American Mineralogist, 1978)

Powder X-ray diffraction (calculated)

d (Å)	4.854	4.145	7.165	3.486	4.385	3.148
I/I₀	100	76.3	70.3	66.3	65.5	60.6

xrd-v1: CuKa1 1.5406A, 2theta 5-90, top10, Imax=100, no DW/PO. Computed from COD 9000626; idealized occupancies, no preferred orientation.

Physical properties

Density (calculated)	2.784 g/cm³calculated from COD 9000626
Streak	whitesingle sourceWikidata (CC0)

Chemistry (calculated)

Molecular weight	529.66 g/molcalculated from the IMA formula
Composition (wt%)	Na 4.34%, Li 1.31%, Zr 17.22%, Si 31.82%, O 45.31%

Classification

Nickel-Strunz (10th)	9.DN.05Wikidata (CC0)
Nickel-Strunz (9th)	9.DN.05Wikidata (CC0)
Dana (8th)	66.3.4.2Wikidata (CC0)