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MINERALS

MINERALS. BY: BREK & WALM. AFWILLITE. It’s hardness is between 3 and 4. It’s a metamorphic rock. Formula Ca 3 Si 2 O 4 (OH) 6 Awfillite is composed of double chains that consist of calcium and silicon polyhedral connected to each other by sharing corners and edges.

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MINERALS

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  1. MINERALS BY: BREK & WALM

  2. AFWILLITE • It’s hardness is between 3 and 4. • It’s a metamorphic rock. • Formula Ca3Si2O4(OH)6 • Awfilliteis composed of double chainsthat consist of calcium and silicon polyhedral connected to each other by sharing corners and edges. • Its luster is glassy.

  3. TALC • It has a hardness of 1. • Its streak is white. • Clear or dusty luster. • It is a metamorphic rock. • It is commonly used as TALCUM POWDER.

  4. Zircon • It is an igneous rock. • It’s hardness is 7.5 • The streak is white.

  5. HORNBLENDE • Streak is brown/grey. • Its luster is vitreous to dull. • Fracture is uneven • Hardness is 5-6

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