Dannnnggggg that's old school stuff right there. Bringing back memories of campground and fireplace fires. Throw some powder into the fire and all the colors in the rainbow twinkle in the flames. As I recall they did not last very long (Maybe a minute, minute and a half) so another handful would be tossed in as needed.
That brand? No idea what we used way back when. But know it was sold in trading posts, general stores and campground stores all along Skyline Drive and outskirts.