|
gptkbp:instanceOf
|
granite
|
|
gptkbp:associatedMinerals
|
gptkb:apophyllite
gptkb:heulandite
gptkb:calcite
laumontite
|
|
gptkbp:birefringence
|
0.002–0.004
|
|
gptkbp:category
|
zeolite
|
|
gptkbp:chemicalFormula
|
NaCa2Al5Si13O36·14H2O
|
|
gptkbp:cleavage
|
perfect
|
|
gptkbp:color
|
gptkb:orange
brown
green
red
white
yellow
pink
|
|
gptkbp:crystalSystem
|
monoclinic
|
|
gptkbp:discoveredIn
|
1818
|
|
gptkbp:event
|
basaltic volcanic rocks
cavities in igneous rocks
|
|
gptkbp:fluorescence
|
none
|
|
gptkbp:foundIn
|
gptkb:Germany
gptkb:Iceland
gptkb:India
gptkb:Scotland
gptkb:USA
|
|
gptkbp:fracture
|
uneven
|
|
gptkbp:habit
|
tabular crystals
fibrous masses
sheaf-like aggregates
|
|
gptkbp:hardnessMohs
|
3.5–4
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Stilbite
|
|
gptkbp:IMAStatus
|
approved mineral
|
|
gptkbp:luster
|
vitreous
pearly
|
|
gptkbp:namedAfter
|
Greek stilbein (to shine)
|
|
gptkbp:opticalProperties
|
biaxial (+)
|
|
gptkbp:pleochroism
|
none
|
|
gptkbp:radioactive
|
non-radioactive
|
|
gptkbp:refractiveIndex
|
1.479–1.500
|
|
gptkbp:relatedGroup
|
tectosilicate
|
|
gptkbp:solubility
|
insoluble in water
|
|
gptkbp:specificGravity
|
2.1–2.2
|
|
gptkbp:streak
|
white
|
|
gptkbp:tenacity
|
brittle
|
|
gptkbp:transparency
|
translucent
transparent
|
|
gptkbp:uses
|
collector's mineral
zeolite applications
|
|
gptkbp:bfsParent
|
gptkb:Tectosilicates
|
|
gptkbp:bfsLayer
|
7
|