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A magnificent crystal identifier profiling over 100 of the earth's most fascinating and beautiful minerals displayed in a spectrum of 20 color bands. Explore the significance of each color ray, and the
Drones are increasingly being used for commercial and private, enthusiast, use, as well as for well-documented military operations.
A riveting illustrated history of one hundred of the most captivating and important moments of the twentieth century, which saw great triumph, struggle, spirit, celebrity, and discovery.
An art kit that features geometric drawing and space to draw on the opposite page, a pencil, and geometric drawing template tools to help create shapes.