Dust Devil Mining Company

Opaque schiller is really snowflake schiller or stripe schiller so dense it has rendered the stone opaque. This magnified view of a cut stone displays opaque schiller (50-times magnification of cut stone):

This is an edge-view of the same stone showing the schiller particles growing more dense toward the back of the stone (left side of photo):

This photo shows opaque schiller in a rough stone:

This is an example of a gem finished from an opaque schiller sunstone: