|
gptkbp:instanceOf
|
phyllosilicate mineral
|
|
gptkbp:associatedMinerals
|
feldspar
quartz
mica
montmorillonite
|
|
gptkbp:category
|
clay mineral
|
|
gptkbp:chemicalFormula
|
Al2Si2O5(OH)4
|
|
gptkbp:cleavage
|
perfect
|
|
gptkbp:color
|
gray
white
yellowish
|
|
gptkbp:crystalSystem
|
monoclinic
|
|
gptkbp:decomposition
|
decomposes to metakaolin
|
|
gptkbp:discoveredIn
|
1867
|
|
gptkbp:event
|
hydrothermal alteration
weathering of feldspar
|
|
gptkbp:foundIn
|
gptkb:Brazil
gptkb:China
gptkb:Czech_Republic
gptkb:France
gptkb:Georgia,_USA
gptkb:Cornwall,_UK
|
|
gptkbp:habit
|
compact
platy
earthy masses
|
|
gptkbp:hardnessMohs
|
2–2.5
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
kaolinite
|
|
gptkbp:IMA_symbol
|
gptkb:Kln
|
|
gptkbp:layer
|
T-O (tetrahedral-octahedral)
|
|
gptkbp:luster
|
earthy
dull
|
|
gptkbp:namedAfter
|
Kaolin, China
|
|
gptkbp:namedFor
|
gptkb:Alexandre_Brongniart
|
|
gptkbp:radioactive
|
non-radioactive
|
|
gptkbp:relatedGroup
|
kaolinite-serpentine group
|
|
gptkbp:solubility
|
insoluble in water
|
|
gptkbp:specificGravity
|
2.6
|
|
gptkbp:streak
|
white
|
|
gptkbp:structure
|
1:1 clay mineral
|
|
gptkbp:symmetry
|
C1
|
|
gptkbp:tenacity
|
brittle
|
|
gptkbp:thermalStability
|
stable up to 550°C
|
|
gptkbp:transparency
|
opaque
translucent
|
|
gptkbp:uses
|
gptkb:ceramics
gptkb:medicine
cosmetics
paper production
|
|
gptkbp:bfsParent
|
gptkb:zunyite
gptkb:zisha_clay
|
|
gptkbp:bfsLayer
|
7
|