| http://www.w3.org/ns/prov#value | - M'.sub.m'.sup.n'+R.sub.r'.sup.p+Al.sub.(1-x)E.sub.xSi.sub.yO.sub.z' where R, x, y, and E are as described above and m' has a value from 0 to about 7.0, M' is a cation selected from the group consisting of alkali metals, alkaline earth metals, rare earth
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