This is the really neat old-fashioned, original glitter that was used for holiday decorations of all types since the end of the 19th century. You might also recognize it as the snow used in the cinema.
Mix mica with paint, ink, glue, any artistic media. Sprinkle it on your holiday decorations. Grind it. Mix it with a tiny amount of any powdered pigment (including the cost-effective tempera pigment) to give it color. Experiment. Have fun!
This wonderful mica comes packaged in a convenient wide-mouth clear plastic jar. There's a LOT of mica in there!
Mica is not toxic in its natural state, but it can be an irritant, so please use caution.