What gives petrified wood the colors you see in material like @MarlaAaron's disks from her awesome earring project?
A-la iron, magnesium, and manganese!
Beyond the topic of awesome jewelry “ingredients”, Marla's seriously cool earrings are open invitations to endlessly play with her convertible lozenges and disks. With earring base in hand (or ear), they are: stackable, light, colorful, reversible, mixable, matchable, made with all kinds of materials, and oh so wonderfully wearable! What's not to love?