TY - JOUR
T1 - Vector representation of some mineral compositions in the aenigmatite group, with special reference to hogtuvaite
AU - Burt, Donald
PY - 1994/1/1
Y1 - 1994/1/1
N2 - Aenigmatite-group compositions conform to the general formula A2B6T6O20, where [8]A cations are Na and Ca, [6]B are Fe2+, Fe3+, Mg, Al, Cr, Ti, and Sb5+, and [4]T are Si, Al, B, and Be in named end-members. Graphical representation of the compositional relations among the phases is made possible by the vector method. When this approach is used on the aenigmatite group, the compositions of the main minerals are derived from that of aenigmatite by application of the basis vectors CaAl(NaSi)-1, Al2(MgTi)-1, and Al2(MgSi)-1. Hogtuvaite is derived by BeSiAl-2 acting on rhonite, and welshite by AlSbBe(MgTiSi)-1 acting on hogtuvaite. -from Author
AB - Aenigmatite-group compositions conform to the general formula A2B6T6O20, where [8]A cations are Na and Ca, [6]B are Fe2+, Fe3+, Mg, Al, Cr, Ti, and Sb5+, and [4]T are Si, Al, B, and Be in named end-members. Graphical representation of the compositional relations among the phases is made possible by the vector method. When this approach is used on the aenigmatite group, the compositions of the main minerals are derived from that of aenigmatite by application of the basis vectors CaAl(NaSi)-1, Al2(MgTi)-1, and Al2(MgSi)-1. Hogtuvaite is derived by BeSiAl-2 acting on rhonite, and welshite by AlSbBe(MgTiSi)-1 acting on hogtuvaite. -from Author
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M3 - Article
AN - SCOPUS:0028571642
SN - 0008-4476
VL - 32
SP - 449
EP - 457
JO - Canadian Mineralogist
JF - Canadian Mineralogist
IS - 2
ER -