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Hauyne, haüyne or hauynite is a tectosilicate mineral with sulfate, with endmember formula Na3Ca(Si3Al3)O12(SO4).〔http://rruff.info/ima〕 As much as 5 wt % K2O may be present, and also H2O and Cl. It is a feldspathoid and a member of the sodalite group.〔〔 Hauyne was first described in 1807 from samples discovered in Vesuvian lavas in Monte Somma, Italy,〔Farndon and Parker (2009). Minerals, Rocks and Fossils of the World. Lorenz Books〕 and was named in 1807 by Brunn-Neergard for the French crystallographer René Just Haüy (1743–1822).〔 == Sodalite group == Formulae:〔 *sodalite Na4(Al3Si3)O12Cl *nosean Na8(Al6Si6)O24(SO4).H2O *lazurite Na3Ca(Si3Al3)O12S *tsaregorodtsevite N(CH3)4Si4(SiAl)O12 *tugtupite Na4BeAlSi4O12Cl *vladimirivanovite Na Na6Ca2()(SO4,S3,S2,Cl)2·H2O All these minerals are feldspathoids. Haüyne forms a solid solution with nosean and with sodalite. Complete solid solution exists between synthetic nosean and haüyne at 600 °C, but only limited solid solution occurs in the sodalite-nosean and sodalite-haüyne systems.〔Bellatreccia, Della Ventura, Piccinini, Cavallo and Brilli (2009): H2O and CO2 in minerals of the haüyne-sodalite group: an FTIR spectroscopy study. Mineralogical Magazine 73:399-413〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Hauyne」の詳細全文を読む スポンサード リンク
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