Here they are, in order as stated above, over a white cream polish. Quartz is a metallic silvery lilac. Aquamarine is a medium blue glitter. Amethyst is a medium purple glitter. Opal is a opalescent glitter, shining pinky purple.
Below is the polishes over a black cream, same order.
The coolest way I've seen glitter crackles used is in a glitter/jelly sandwich. The Swatchaholic did a version the other day that is way fun and unexpected. You can get these wherever Nicole by OPI polishes are sold for $7.99.
Products provided for review.
