Lot of Chrysocolla Cabochons with Limonite Inclusions and One Polished Face Uniqueness Guaranteed: Every item is one-of-a-kind, making them ideal for all projects or designs. Listing is for (75 Grams) Avg Size Range: (5 to 15 Grams) Sizes Vary Material Origin: (Peru) Chrysocolla forms when copper ore oxidizes and incorporates varying amounts of silica while growing. The amount of silica affects both the color, which can range from deep navy blue through teal and green, and the hardness of the resulting stone. Bright blue chrysocolla is a popular color replacement for turquoise in jewelry. These pieces also contain inclusions of an iron ore called limonite. Custom Requests: Have specific preferences? Leave a message with your order, and we'll do our best to accommodate your requests if possible. Handmade items vary in size, shape, and color when selected randomly (the highest quality items are chosen first). They'll be as beautiful as those in the photos.