We deconstruct the glaze mancos_L along the axis alumina, i.e. both glazes mancos_L_L and mancos_L_H have essentially the same everything except alumina, mancos_L_L is low in alumina, mancos_L_H is high in alumina.
Glaze mancos_L_L
a macro photo close up showing the structure of of mancos_L_L, which we note is remarkably similar to mancos_L.
Glaze mancos_L_H
a macro close up showing the structure of the glaze mancos_L_H, note that while the bubbling is still present, is much reduced.