Ilyukhinite
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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 | |
|---|---|
| General | |
| Category | Silicate mineral, cyclosilicate |
| Formula | 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] |