Dokl. Akad. Nauk SSSR, 1977 Volume 237, Number 6,Pages 1358–1361(Mi dan41435)
CRYSTALLOGRAPHY
Refined crystal structure of the crystals of “phase A” – $\mathrm{Na}_2\mathrm{Zn}[\mathrm{Si}_3\mathrm{O}_8]$,
comparison of it as $\mathrm{Na}$-zincosilicate with hurlbutite and orthoclase