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Mineral groups > tectosilicates (1:2) > Flashcards

tectosilicates (1:2) Flashcards

1
Q

tectosilicate groups

A
  1. silica group
  2. feldspathoid
  3. plagioclase feldspar
  4. alkaline (K-) feldspar
  5. zeolite
  6. scapolite
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2
Q

silica group

A
  1. quartz
  2. chalcedony
  3. cristobalite
  4. stishobite
  5. tridymite
  6. coesite
  7. opal
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3
Q

quartz

A

hexagonal; SiO2

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4
Q

chalcedony

A

hexagonal; SiO2

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5
Q

cristobalite

A

tetragonal, SiO2

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6
Q

stishovite

A

tetragonal, SiO2

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7
Q

tridymite

A

triclinic, SiO2

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8
Q

coesite

A

monoclinic, SiO2

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9
Q

opal

A

amorphous, SiO2 * nH2O

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10
Q

feldspathoid group

A
  1. leucite
  2. nepheline
  3. sodalite
  4. lazurite
  5. petalite
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11
Q

leucite

A

tetragonal, KAlSi2O6

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12
Q

nepheline

A

hexagonal, NaAlSiO4

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13
Q

sodalite

A

isometric, Na4(Si3Al3)O12Cl

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14
Q

lazurite

A

isometric, Na7CaAl3Si3O12S

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15
Q

petalite

A

monoclinic, LiAl(Si4O10)

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16
Q

plagioclase group

A
  1. anorthite
  2. albite
17
Q

anorthite

A

triclinic, CaAl2Si2O8 (ca-rich)

18
Q

albite

A

triclinic, NaAlSi3O8 (na-rich)

19
Q

alkali-feldspar group

A
  1. microcline
  2. sanidine
  3. orthoclase
20
Q

microcline

A

triclinic, KAlSi3O8

21
Q

sanidine

A

monoclinic, KAlSi3O8

22
Q

orthoclase

A

monoclinic, KAlSi3O8

23
Q

scapolite group

A
  1. meionite
  2. marialite
  3. analcime
24
Q

meionite

A

tetragonal, Ca4Al6Si6O24CO3

25
Q

marialite

A

tetragonal, NaAl3Si9O24Cl

26
Q

analcime

A

triclinic, NaAlSi2O6 * H2O

27
Q

zeolite group

A
  1. natrolite
  2. chabazite
  3. heulandite
  4. stilbite
  5. laumonite
28
Q

natrolite

A

orthorhombic, Na2Al2Si3O10 * 2H2O

29
Q

chabazite

A

triclinic, CaAl2Si4O12 * 6H2O

30
Q

heulandite

A

monoclinic, CaAl2Si7O18 * 6H2O

31
Q

stilbite

A

monoclinic, CaAl2Si7O18 * 7H2O

32
Q

laumonite

A

monoclinic, CaAl2Si4O12 * 4H2O

Mineral groups (20 decks)

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