Phyllosilicates Flashcards
General formula of phyllosilicates
Si2O5
is an aluminum hydroxide mineral with the chemical formula Al(OH)3
Gibbsite
magnesium hydroxide mineral with the chemical formula mg(OH)3
Brucite
Mg2 Al (Si2O5) (OH)4
Amesite
Cu2 (Si2O5) (OH)4
Chrysocolla
Mg3 (SiO5) (OH)4
Distinguishing feature:
Platy habit
Lizardite
Mg3 (SiO5) (OH)4
Distinguishing feature:
Platy and straited habit
Antigorite
Mg3 (SiO5) (OH)4
Distinguishing feature:
Fibrous habit
Chrysotile
Chrysotile alias
White asbestos
Made up of layered structures of fine- grained minerals (size lower than 0.002mm)
Clay minerals
is a special type of polymorphism that is usually used to describe the variation of structures and sequences in layered materials.
Polytypism
refers to a process whereby a mineral occurs where it is found
Authigenesis
Mg3 (Si2O5)2 (OH)2
Talc
Talc alias
Soapstone
Al2 (Si2O5)2 (OH)2
Pyrophyllite
A clay mineral that has a distinguishing feature of radial habir or fan like
Pyrophyllite
Al2 Si2O5 (OH)4
Kaolinite
Kaolinite alias
China clay
Variety of dickite that is Dense yellow variety due to Alunite impurity
Changhua stone
Variety of dickite that is Yellow to Orange-yellow variety due to hematite, anatase, barite, diaspore and pyrite
Yellow seal srone
A mineral under the kaolinite group that has a hollow tabular morphology
Halloysite
Minerals under the kaolinite group
Kaolinite
Nacrite
Dickite
Halloysite
Classified as a 2:1 swelling clay
Smectite group
Bonding in smectite group that causing it to expand due to the water molecules infiltrates the interlayer
Van der waals
Classified as a 2:1 non-swelling clay
Illite group
A mica-like clay mineral because its structure is similar to Muscovite.
Illite group
What ion occupy the interlayer creating a strong bond between the sheet kayer
Potassium ions
Illite alias
Hydromica or hydro muscovite
1:1
NON-SWELLING CLAY
Kaolinite group
2:1
Non swelling clay
Illite group
2:1
Swelling clay
Smectite group
Exhibit a two-dimensional sheer or layer structure
Mica group
K(Mg,Fe)2 (Al Si3 O10) (F,OH)2
Biotite
Biotite alias
Black mica
K Al (Al Si3 O10) (OH)2
Muscovite
Muscovite alias
Isinglass
Potasmica
Common mica
Muscovite
Ca Al4 Si2 O10 (OH)2
Margarite
First name of margarite
Pearl mica
K Mg3 (Ak3 Si3 O10) (OH)2
Phlogopite
Phogophite alias
Magnesium mica
Exhibits a 2:1:1 structural layer
Chlorite group
Li Al4 (Al Si3O10) (OH)8
Cookeite
Type of chlorite mineral that has a botryoidal to worm like aggregates
Cookeite
Chlorite mineral that has a laminar shape
Chamosite
(Fe,Mg)5 Al2Si3O10 (OH)8
Chamosite
Mg5 Al2 (Si3 O10) (OH)8
Clinochlore
