《大地的寶藏—礦石》,礦物有三千多種,不過只有少數幾種礦物會形成岩石,岩石就是組成地殼的要角,可分為火成岩、沉積岩、變質岩等三大類,這些岩石的岩性也會隨著時間和環境改變而產生變化,稱為「岩石循環」。有些礦物岩石具有很高的經濟價值,所以人類想盡辦法進行開採,要如何探勘與開採埋藏於叢山峻嶺間的珍貴礦石,就得費一番心力。
- Just Added
- Popular Audiobooks Without the Wait!
- Summer Listening
- Listen While You Workout
- See all audiobooks collections
- Favorite Magazines
- Crafting & DIY
- 中文(简体
- Travel & Outdoors
- Health & Fitness
- Business & Finance
- Fashion
- Entertainment
- Home & Garden
- News & Politics
- Food & Cooking
- Revistas
- Health & Fitness Magazines
- See all magazines collections