Heather is an ultrafine magenta purple with blue iridescent. Iridescent glitters are fun because they shift their color depending on the background color. If you apply Heather over black, she will be a beautiful blue!
Magpie Glitter application tips:
Ultrafine/Fine Glitters 
Dab onto the tacky layer of gel with the Magpie applicator brush. Brush off the excess with the Magpie Duster brush. Apply a layer of Magpie Give Me Strength to glue down the loose glitter and cure for 60 seconds. Apply a layer of Magpie Don't Be Tacky and cure to a high shine for 60 seconds. 
Mix with Magpie Give Me Strength (clear) to create a glitter gel. Apply the glitter gel with the Magpie Silicone Tool or the Magpie Illustrator nail art brush or the Magpie Teal Detailer brush. Cure for 60 seconds. Apply a layer of Don't Be Tacky and cure to a high shine for 60 seconds. 
Magpie Glitters can also be mixed with acrylic powder for acrylic enhancements. 
10g of glitter 
Photo credit @isabelmaynails, @kmrnailss, @louiserind