Ilyukhinite is a very rare mineral of the eudialyte group,[2] with formula (H3O,Na)14Ca6Mn2Zr3Si26O72(OH)2·3H2O.[4] The formula given is simplified and does not show the presence of cyclic silicate groups. Ilyukhinite is the second group representative with species-defining hydronium ion after aqualite.[2]
Ilyukhinite | |
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General | |
Category | Silicate mineral, cyclosilicate |
Formula (repeating unit) | see text |
IMA symbol | Ily[1] |
Crystal system | Trigonal |
Crystal class | Ditrigonal pyramidal (3m) H-M symbol: (3m) |
Space group | R3m |
Unit cell | a = 14.1695, c = 31.026 [Å] |
Identification | |
References | [2][3] |