aqualite
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Aqualite is a very rare mineral of the eudialyte group, with formula (H3O)8(Na,K,Sr)5Ca6Zr3SiSi(Si24O66)(OH)9Cl. The formula given does not show the presence of cyclic silicate groups. The original formula was extended to show the presence of silicon at both M3 and M4 sites, according to the nomenclature of the eudialyte group. Aqualite is unique among the eudialyte group in being hydronium-rich (the only other eudialyte-group species with essential hydronium, is the recently discovered ilyukhinite). Among the other representatives of the group it also distinguish in splitting of the M1 site i
Wikidata facts
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- Aqualite.jpg
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- IMA Mineral Symbol
- Aq
- chemical formula
- (H₃O)₈(Na,K,Sr)₅Ca₆Zr₃Si₂₆O₆₆(OH)₉Cl
- Commons category
- Aqualite
- Nickel-Strunz 9th edition (updated 2009)
- 9.CO.10
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 9.CO.10
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Article
4 sectionsContents
- Notes on chemistry
- Occurrence and association
- Origin
- References
Aqualite is a very rare mineral of the eudialyte group, with formula (H3O)8(Na,K,Sr)5Ca6Zr3SiSi(Si24O66)(OH)9Cl. The formula given does not show the presence of cyclic silicate groups. The original formula was extended to show the presence of silicon at both M3 and M4 sites, according to the nomenclature of the eudialyte group. Aqualite is unique among the eudialyte group in being hydronium-rich (the only other eudialyte-group species with essential hydronium, is the recently discovered ilyukhinite). Among the other representatives of the group it also distinguish in splitting of the M1 site into two sub-sites, both occupied by calcium. Thus, its symmetry is lowered from typical for most eudialytes R3m (or R-3m) to R3. The name refers to high content of water in the mineral.
==Notes on chemistry== Elements occurring as admixtures in aqualite include barium, iron, rare-earth elements (including cerium), titanium, aluminium and trace niobium.