Beryl Flashcards by Travis Gilskey

Q

What is Beryl’s formula?

A

Be3Al2Si6O18

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Q

What is Beryl’s crystal system?

A

hexagonal 6/m2/m2/m

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Q

What is beryl’s form?

A

hexagonal prism {1010} with {0001} pinacoid

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Q

what is Beryl’s cleavage?

A

imperfect {0001}

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Q

What is Beryl’s hardness?

A

7.5-8

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Q

What is Beryl’s occurrences?

A

granitic pegmatites

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Q

What is Beryl’s use?

A

chief source of beryllium for metal alloys

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