Precious metallic minerals: Gold, Silver, Non-metallic minerals: ………………
A. Chromium, Tungsten
B. Magnesium, Titanium
C. Fluorspar, Limestone
D. Zinc, Nickel
Answer:C
Precious metallic minerals: Gold, Silver, Non-metallic minerals: ………………
A. Chromium, Tungsten B. Magnesium, Titanium C. Fluorspar, Limestone D. Zinc, Nickel