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Sekaninaite ((Fe+2,Mg)2Al4Si5O18) is a
silicate mineral, the iron-rich
analogue of cordierite. It was
first described in 1968 for an
occurrence in Dolní...
- and a
solid solution exists between Mg-rich
cordierite and Fe-rich
sekaninaite with a
series formula: (Mg,Fe)2Al3(Si5AlO18) to (Fe,Mg)2Al3(Si5AlO18)...
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Scotlandite Scrutinyite Seamanite Searlesite Seeligerite Segelerite Seifertite Sekaninaite Selenium Seligmannite Sellaite Semseyite Senarmontite Sengierite Sepiolite...
- – (K,Na)(Fe,Mg)2(Al,Fe)3(Si,Al)12O30
Cordierite – (Mg,Fe)2Al4Si5O18
Sekaninaite – (Fe+2,Mg)2Al4Si5O18 9-member
single ring
Eudialyte – Na 15Ca 6(Fe,Mn)...
- Sejkoraite-(Y) Sej-Y
Sinkankasite Ska
Steropesite Strp
Sverigeite Svg
Santite Snt
Sekaninaite Skn
Sinnerite Sin
Sterryite Srr
Svetlanaite Svl
Saponite Sap Selenium...
-
tridymite and
cristobalite may be
classified as
oxide minerals, too), and
sekaninaite.
Oxide minerals include corundum, hematite, hercynite, magnesioferrite...
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Ferrogedrite Needles of ferro-gedrite on
cleavage plane (001) of
sekaninaite.
General Category Inosilicates Amphibole Formula ☐Fe2+2(Fe2+3Al2)(Si6Al2)O22(OH)2...
- mineralogist,
gemologist and
petrologist Edgar Ralph Segnit (1923–1999)
Sekaninaite: (Fe+2,Mg)2Al4Si5O18 –
Czech mineralogist Josef Sekanina (born 1901)...
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physicist –
Seebeck effect Josef Sekanina,
Czech mineralogist –
mineral Sekaninaite.
Haile Sel****ie,
Ethiopian emperor –
Rastafari (which is
derived from...
- diantimonide) Sejkoraite-(Y) (zippeite: IMA2009-008) 7.EC.15 [377] [no] [no]
Sekaninaite (beryl: IMA1967-047) 9.CJ.10 [378] [379] [380] (IUPAC: diiron(II) tetraluminium...
