موسوعة الصخور والأحجار الكريمة والمستحاثات

A general purpose dictionary suitable for a great variety of both English and Spanish speakers at all levels of proficiency, this volume contains over 100,000 entries – common and technical words and phrases, slang and idioms – with examples of usage that include many especially chosen to help users express themselves in a natural and fluent style. All headwords – both English and Spanish – have phonetic transcriptions based on the International Phonetic Alphabet (IPA) to assist with pronunciation.