This book identifies minerals, tells how they are used in common, everyday life. It also explains how the rock cycle works and the three main types of rocks. This book also differentiates between rocks, minerals and gems.
The wonders of rocks and minerals explores the world of geology ia an exciting and higly interactive way.
Enhances absorption of vitamin C. Bioflavonoids are water - soluble vitamins that are essential for the proper absorption and utilization of vitamin C. The bioflavonoids are citrin , flavonals , flavones , hesperidin , and rutin .
The pocket guide to rocks and minerals
The Pocket Guide to Rocks & Minerals
Get out and discover nature Each title in this series includes detailed illustrations and a checklist to keep track of what has been spotted.
Roches et minéraux
... is an ideal compact identification guide to the rocks , minerals , and crystals found on the shore , in the desert , in national parks , on old mine tips , in yards , and in the stone and stone - faced buildings of North America .
本书收录鲁迅早期编著的"中国矿产志"和生理课程讲义"人生象敩."
Examines the nature, formation, and different kinds of rocks and minerals and explains how to collect them.