|
gptkbp:instanceOf
|
gptkb:granite
|
|
gptkbp:aroma
|
odorless
|
|
gptkbp:CASNumber
|
13397-24-5
|
|
gptkbp:chemicalFormula
|
CaSO4·2H2O
|
|
gptkbp:cleavage
|
perfect
|
|
gptkbp:color
|
gray
white
colorless
|
|
gptkbp:containsElement
|
gptkb:sulfur
hydrogen
oxygen
calcium
|
|
gptkbp:containsMineral
|
sulfate minerals
|
|
gptkbp:crystalSystem
|
monoclinic
|
|
gptkbp:density
|
2.31–2.33 g/cm³
|
|
gptkbp:discoveredIn
|
ancient times
|
|
gptkbp:event
|
sedimentary rocks
|
|
gptkbp:flavor
|
slightly salty
|
|
gptkbp:form
|
evaporation of saline water
|
|
gptkbp:fracture
|
splintery
|
|
gptkbp:habit
|
fibrous aggregates
tabular crystals
granular masses
|
|
gptkbp:hardnessMohs
|
2
|
|
gptkbp:hasResource
|
gptkb:China
gptkb:Iran
gptkb:Spain
gptkb:Thailand
gptkb:United_States
|
|
gptkbp:luster
|
vitreous
silky
pearly
|
|
gptkbp:meltingPoint
|
150°C (dehydrates)
|
|
gptkbp:otherName
|
alabaster
selenite
satin spar
|
|
gptkbp:radioactive
|
non-radioactive
|
|
gptkbp:refractiveIndex
|
1.52–1.53
|
|
gptkbp:solubility
|
slightly soluble in water
|
|
gptkbp:streak
|
white
|
|
gptkbp:tenacity
|
flexible
not elastic
|
|
gptkbp:transparency
|
translucent
transparent
|
|
gptkbp:uses
|
gptkb:fertilizer
gptkb:cement
plaster
drywall
|
|
gptkbp:bfsParent
|
gptkb:Calcium_Sulfate_(CaS)
|
|
gptkbp:bfsLayer
|
7
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
gypsum (CaSO4·2H2O)
|