Spinel Group Diagram The heterogeneity of spinel group members varies based on composition with ferrous and magnesium based members varying greatly as in solid solution, which requires similarly sized cations. However, ferric and aluminium based spinels are almost entirely homogeneous due to their large size difference. The spinel structure
Spinel Group Diagram Spinel (/ s p ɪ ˈ n ɛ l /) is the magnesium/aluminium member of the larger spinel group of minerals. It has the formula MgAl 2 O 4 in the cubic crystal system.Its name comes from Latin "spina" (arrow). Though spinels are often referred to by uninformed people as rubies, as in the Black Prince Ruby, the true ruby is not a spinel.
Spinel Group Diagram A non IMA-approved group name, in use in literature before 2018, for cubic oxides of general formula AE 2 O 4. These species were sub-divided into three series: Spinel series (E = Al), Magnetite series (E = Fe), and the Chromite series (E = Cr). Also known as Spinellid or Spinelid. A new
Spinel Group Diagram The general formula of the Spinel Group is AB 2 O 4. The A represents a divalent metal ion such as Magnesium, Iron, Nickel, Manganese and/or Zinc. All members of this group that share the spinel structure show the same type of twinning that is named after spinel, called the Spinel Law.