Citation: Grew, E. S.; Graetsch, H. A.; Poter, B.; Yates, M. G.; Buick, I.; Bernhardt, H.-J.; Schreyer, W.; Werding, G.; Carson, C. J.; Clarke, G. L. (2008). Boralsilite, Al16B6Si2O37, and "boron-mullite:" compositional variations and associated phases in experiment and nature Sample: run W2. American Mineralogist, 93, pp. 283-299.