The “other” Shimizu B 70 in the shared database is wrong (as pointed out by Rocket J. Squirrel on 5 Dec 2005 in a forum post). I’m not sure who posted it but it lists copper oxide instead of carbonate. The comp listed here is correct and checked against the original source.
Transcribed by Lee Bussy from Pyrotechnica VI, Studies on Blue and Purple Flame Compositions Made with Potassium Perchlorate – Takeo Shimizu, Page 14, Table 12.
