ASSEMBLAGES CONTAINING CHLORITOID AND BIOTITE

The space may be constructed as above using Equation (7), weighted two, and Equation (3), unweighted, as basis vectors. A curious feature of this space is that 

In the constmction of face ABD Equation (14) is weighted two-thirds, and Equation (15) is unweighted. The equations for the exchange limits in this sub-assemblage are Equations (16) and (17) in Table 1. 

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