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Mineralogy > Cyclosilicates > Flashcards

Cyclosilicates Flashcards

1
Q

Also called as ring silicates

A

Cyclosilicates

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2
Q

Ratio of silicon ions to oxygen of Cyclosilicates

A

1:3

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3
Q

Some minerals link three silica tetrahedra together through shared oxygen ions to form?

A

Triangular ring shape (Si3O9)

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4
Q

Four silica tetrahedra link

A

Square shape (Si4O12)

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5
Q

Six silica tetrahedra link

A

Hexagonal ring (Si6O18)

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6
Q

(3) Three-membered ring minerals

A

Benitoite, Pabstite, Margarosanite

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7
Q

Distinguishing Feature of Benitoite

A

Fluorescent, Deep indigo blue

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8
Q

Distinguishing Feature of Pabstite

A

Fluorescent, bluish white in UV light

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9
Q

Distinguishing Feature of Margarosanite

A

Bluish white fluorescence

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10
Q

(11) Six-membered ring Minerals, what is among tourmaline group?

A

Dravite, Schorl, Elbaite, Verdelite, Liddicoatite, Indicolite, Rubellite, Cordierite, Beryl, Sugilite, Dioptase

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11
Q

Explain the Usambara Effect

A

kaya mo yan

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12
Q

Distinguishing Feature of Dravite

A

Brown, Displays usambara effect strongly

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13
Q

Distinguishing Feature of Schorl

A

Black Color

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14
Q

Distinguishing Feature of Elbaite

A

Usually Bicolored

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15
Q

Distinguishing Feature of Verdelite

A

Green Color

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16
Q

Distinguishing Feature of Liddicoatite

A

Pink, Bicolored

17
Q

Distinguishing Feature of Indicolite

A

Saturated Vibrant Blue

18
Q

Distinguishing Feature of Rubellite

A

Vivid Pink

19
Q

Distinguishing Feature of Cordierite

A

Pleochroic property, blue

20
Q

Distinguishing Feature of Beryl

A

Allochromatic, varying colors

21
Q

Distinguishing Feature of Sugilite

A

Can exhibit unique banding

22
Q

Distinguishing Feature of Dioptase

A

Mineralogy (19 decks)

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