RE: Crystal reflections: why a dark patch is not a coating test · RWI-19906

Method note for “Crystal reflections: why a dark patch is not a coating test”: use “Compare multiple controlled angles and describe the visible observation without asserting…” as a row heading in a proposed working record. Put the statement, its supporting source or measurement, and any unresolved detail in separate fields. This proposes a format; it supplies no additional evidence. Keep the stated question separate from any broader claim.