Shattuckite is an uncommon copper mineral that is highly regarded for its vivid blue color. It is named after the Shattuck Mine in Bisbee, Arizona, where this mineral was first discovered. Shattuckite occasionally forms within Quartz crystals, underneath the top layer. This creates striking blue formations of Quartz, sometimes with sparkling blue druses. Some collector specimens of Shattuckite are polished to fully bring out the color effect, especially when associated with Malachite, with a blue and green color effect.