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MINERALOGY > Inosilicates > Flashcards

Inosilicates Flashcards

1
Q

Each tetrahedron consists of a silicon atom surrounded by four oxygen atoms

A

Inosilicates

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2
Q

Chaines silica tetrahedra

A

inosilicates

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3
Q

cleavage at 90°

A

Single chain inosilicates

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4
Q

cleavage at 60-120°

A

double chain inosilicates (amphiboles)

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5
Q

short and stubby ferromagnesian mineral (dark mineral)

A

single chain inosilicates (pyroxene)

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6
Q

long and slender ferromagnesian mineral (dark mineral)

A

double chain inosilicates (amphibole)

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7
Q

single chain inosilicate with monoclinic crystal system

A

clinopyroxene

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8
Q

single chain inosilicate with orthorhombic crystal system

A

orthopyroxene

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9
Q

(Ca ) (Mg,Fe)2 (Si,Al)2 O6

A

augite

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10
Q

Mn and Zn Rich variety of augine

A

jeffersonite

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11
Q

Color of jeffersonite

A

dark green

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12
Q

Ca Mg (Si2O6)

A

Diopside

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13
Q

Type of clinopyroxene that are often green and found in metamorphic rocks

A

diopside

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14
Q

Mg rich variety of diopside

A

violane

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15
Q

Color of mg rich variety of diopside

A

deep blue-violet

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16
Q

Na Al (Si2O6)

A

jadeite

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17
Q

Prized gemstone variety
of jadeite

A

imperial jade

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18
Q

color of imperial jade

A

emerald green

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19
Q

Ca Mn(Si2O6)

A

Johannsenite

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20
Q

Ca Fe (Si2O6)

A

Hedenbergite

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21
Q

The mineral is extremely rarely found as a pure substance, and usually has to be synthesized in a lab

A

Hedenbergite

22
Q

Na Fe (Si2O6)

23
Q

Have lighter streak and glassy luster compare to other inosilicates

24
Q

Li Al (Si2O6)

25
Q

Cr- rich and green variety of spodumene

26
Q

Mg- rich and purple variety of spodumene

27
Q

pale yellow or colorless due to the absence of coloring elements
variety of spodumene

28
Q

Mg2 (Si2O6)

29
Q

known for being found in a small group of meteorites

A

Enstatite Chondrites

30
Q

(Mg,Fe) SiO3

A

Hypersthene

31
Q

An orthopyroxene that shows a different color from each different direction of looking at the stone (Pleochroism)

A

Hypersthene

32
Q

(Mg,Fe)2 (Si2O6)

33
Q

Resemble pyroxenes but with a structural twist

A

Pyroxenoid

34
Q

Ca (SiO3)

A

Wollastonite

35
Q

CaMn (Si2O6)

36
Q

(Ca,Na)2 (Mg,Fe,Al)5 (Al,Si)8 O22 (OH)2

A

Hornblende

37
Q

Hornblende forms at

A

lower temperatures and higher pressures.

38
Q

Augite forms at

A

high temperatures and moderate pressures.

39
Q

Fe7 (Si8O22) (OH)2

40
Q

brown and Fe rich variety of grunite

41
Q

Ca2 Mg5 (Si8O22) (OH)2

42
Q

Ca2 (Mg,Fe)5 (Si8O22) (OH)2

A

Actinolite

43
Q

Defining characteristic of actinolite

A

Green color

44
Q

Na2 Mg3Al2 (Si8O22) (OH)2

A

Glaucophane

45
Q

It typically occurs in blueschists

A

Glaucophane

46
Q

Na2(Fe^2)3 (Fe^3)2 (Si8O22)(OH)2

A

Riebeckite

47
Q

blue asbestos

A

CROCIDOLITE

48
Q

(Na,K)3 (Fe,Mn)4
Fe(Si8O22) (OH)2

A

Arfvedsonite

49
Q

(Mg7Si8O22 ) (OH)2

A

Anthophyllite

50
Q

Anthophyllite color

A

Clove-brown color

51
Q

health hazard of asbestos

A

1.LUNG CANCER
2.MESOTHELIOMA
3.ASBESTOSIS

MINERALOGY (32 decks)

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