Book description
Explore the treasures of the Earth – sparkling crystals, vibrant gemstones, and age-old fossils – with this illustrated guide that’s sure to captivate every rockhound and budding gemologist.From primeval origins to their astonishing modern-day uses and appeal, this is the ultimate portrait of Earth's geological riches – rocks, minerals, crystals, and gems. Also included is a focussed look at other precious materials often prized for their beauty, such as amber, coral, ivory, and fossils.Learn how to identify more than 450 rock and mineral specimens through stunning photographs and detailed characteristics. Discover more about rocks and minerals through folklore and historical artifacts, and find out the fascinating stories behind the world's natural treasures, including the Hope diamond and the Great Mogul emerald. Practical advice on cutting, polishing, and displaying your finds further equips you with all the knowledge needed to delve into the world of rock and mineral collecting.Rock and Gem were produced in association with the Smithsonian Institution in Washington DC, the world's largest museum complex, ensuring the guide's accuracy.
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Playing a wide variety of audio formats
Works on all devices with iOS 13 and newer
Huge amount of features for a small price
Frequent updates to add new features and improve existing ones
Advanced playback controls
Live sound processing
Changing the timbre of the reader's voice and noise reduction
Translated into more than 20 languages
If you love listening to fiction audiobooks, ListenBook has features to make the process easier.
Edit book data: title, author, cover
Use equalizer to make the sound comfortable for you
Adjust the playback speed
Enjoy dark and light app themes
Supported formats: MP3, M4B, AWB, FLAC, OGG audio files and many more (must be DRM free)
Auto-Bookmarks make it easy to find your place
AirPlay support allows redirection of audio output.
VoiceOver support
Dark mode for night owls
Convenient bookmarking system helps you mark the most important places.
Unlimited bookmarks for each audiobook
Put your own cover on the wager
Share your audiobook with friends
Lock-screen control
Customise app with extensive options
Sleep timer with shake to reset, set custom notification sounds, and a few unique options
Auto rewind depending on paused time, customize rewind times to your liking
Removing background noise from recordings made in classrooms and meetings
Changing the timbre of the reader's voice for a better listening experience