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Common Minerals

This article delves into three notable minerals: Arsenic, Kyanite, and Barium. Arsenic appears white and can rapidly turn gray, exhibiting an uneven fracture with a metallic luster and a hardness of 3-4. Kyanite, primarily found in light blue, showcases an intriguing range of colors and possesses two distinct hardness levels (4-5 and 6-7), along with perfect cleavage. Barium is recognized for its silvery-white hue and has a much softer hardness rating of 1.25. Discover the unique properties and characteristics of these fascinating minerals.

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Common Minerals

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  1. Common Minerals By: zart and poll

  2. Arsenic • It’s white and will quickly change to grey • Fracture uneven • Luster is metallic • Hardness is 3-4

  3. Kyanite • Color is usually light blue but often other colors • Kyanite is aluminum silicate • It has two hardness's 4-5 and 6-7 • Perfect cleavage

  4. Barium • Color is silvery-white • Hardness is 1.25

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