Citation: Pakhomova, Anna; Bykova, Elena; Bykov, Maxim; Glazyrin, Konstantin; Gasharova, Biliana; Liermann, Hanns-Peter; Mezouar, Mohamed; Gorelova, Liudmila; Krivovichev, Sergey; Dubrovinsky, Leonid (2017). A closer look into close packing: pentacoordinated silicon in a high-pressure polymorph of danburite. IUCrJ, 4, pp. -.