Mineral Factbook

Ringwoodite

SiMg2O4IMA symbol: Rwdapproved

Ringwoodite is a silicate mineral with the formula SiMg2O4, crystallizing in the cubic system. It has a calculated density of 3.512 g/cm3.

Photos

Ringwoodite specimen photo
Ringwoodit · CC BY-SA 4.0 · Commons
Ringwoodite specimen photo
University of Alberta · CC BY-SA 4.0 · Commons
Ringwoodite specimen photo
Naotaka Tomioka, Luca Bindi, Takuo Okuchi, Masaaki Miyahara, Toshiaki Iitaka, Zhi Li, Tsutomu Kawatsu, Xiande Xie, Narangoo Purevjav, Riho Tani & Yu Kodama · CC BY 4.0 · Commons
Ringwoodite specimen photo
Bindi, Luca and Sinmyo, Ryosuke and Bykova, Elena and Ovsyannikov, Sergey and Mccammon, Catherine and Kupenko, Ilya and Ismailova, Leyla and Dubrovinsky, Leonid and Xiande, Xie · CC BY-SA 4.0 · Commons

Crystallography

Crystal systemcubic crystal systemWikidata (CC0)
Space groupF d -3 m :2
Cell (Å, °)a = 8.0756, b = 8.0756, c = 8.0756; α = 90, β = 90, γ = 90
Cell volume526.653 ų, Z = 8
Axial ratios1.0000:1:1.0000calculated from COD 9014471
Source structureCOD 9014471 (American Mineralogist, 2012) — 1 of 39 structures

Physical properties

Density (calculated)3.512 g/cm³calculated from COD 9014471

Chemistry (calculated)

Molecular weight140.69 g/molcalculated from the IMA formula
Composition (wt%)Si 19.96%, Mg 34.55%, O 45.49%

Classification

Nickel-Strunz (10th)9.AC.15Wikidata (CC0)
Nickel-Strunz (9th)9.AC.15Wikidata (CC0)
Dana (8th)51.3.3.1Wikidata (CC0)