This app is a great resource to memorize Most Beautiful Gemstones. The app is engineered to make users perfect identifying famous gems by studying for a very short amount of time. Audio functionality and bookmarking is available throughout the app on chapter, section, study mode and quiz modes. The app will help you learn the correct pronunciation of gemstones using English language. Following are the main features of this app 1. Supports pronouncing Gemstones in English Language 2. Uses Text to Speech Engine for Audio Functionality 3. Quizzes 4. Study Mode 5. Bookmarking Study Flashcards and Quiz Questions 6. Progress Indicators for Every Chapter 7. Visualization for Overall Progress Currently following gemstones are supported Wulfenite Mimetite Silver Hercynite Iris Agate Tourmaline with Lepidolite Aquamarine Rutile Hessonite Garnet Ammonite Chrysocolla Opal Red Beryl Emerald Limonite after Marcasite Haüyne Gold Purple Fluorite with Calcite Moldavite Chrome Tourmaline (Dravite) Anglesite Ruby Zoisite Euclase on Calcite Rainbow Obsidian Dumortierite in Quartz Osmium Welo Opal Rainbow Fluorite Pietersite Goethite Quartz with Hematite, Papagoite, Ajoite and Kaolinite Fulgurite Chalcanthite Dendritic Agate Fluorite with Schorl Amethyst Scepter Petrified Wood Opal with an “Ocean” Inside Watermelon Tourmaline Iridescent Ammonite Shell Charoite Rainbow Opal Golden Rutilated Quartz Multicolor Labradorite Smithsonite Blue Azurite Flower Faceted Ametrine Blue Green Tourmaline Crazy Lace Agate Gold Fan-Shaped Cacoxenite