This a very interesting combination specimen from a lesser known location in Mexico. Azurite on Amethystine Quartz, which has a light blue coating of an unidentified mineral all over. The Azurite crystals are razor sharp with electric blue colour and superb lustre. To add even more allure to the piece there are some tine pale yellow crystals dotted over, which look to be possibly Wulfenite? These are very hard to come by and seldom found in the marketplace.