|
gptkbp:instanceOf
|
granite
|
|
gptkbp:2V_angle
|
50° to 56°
|
|
gptkbp:associatedMinerals
|
gptkb:Heulandite
gptkb:Mesolite
gptkb:Natrolite
gptkb:Stilbite
Apophyllite
|
|
gptkbp:birefringence
|
0.013–0.015
|
|
gptkbp:category
|
Zeolite group
|
|
gptkbp:chemicalFormula
|
CaAl2Si3O10·3H2O
|
|
gptkbp:cleavage
|
Perfect on [100]
|
|
gptkbp:color
|
gptkb:fish
Colorless
Green
Pink
Red
White
Yellow
|
|
gptkbp:crystalSystem
|
Monoclinic
|
|
gptkbp:discoveredBy
|
1813
|
|
gptkbp:event
|
Hydrothermal veins
Basalt cavities
Vesicular volcanic rocks
|
|
gptkbp:fracture
|
Uneven
|
|
gptkbp:habit
|
Massive
Fibrous
Acicular
Columnar
Radiating aggregates
|
|
gptkbp:hardnessMohs
|
5 to 5.5
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Scolecite
|
|
gptkbp:IMA_symbol
|
gptkb:Sco
|
|
gptkbp:luster
|
Vitreous
Silky
|
|
gptkbp:namedAfter
|
Greek word 'skolex' (worm)
|
|
gptkbp:opticalProperties
|
Biaxial (+)
|
|
gptkbp:radioactive
|
Non-radioactive
|
|
gptkbp:refractiveIndex
|
nα = 1.507–1.512
nβ = 1.518–1.521
nγ = 1.520–1.527
|
|
gptkbp:solubility
|
Soluble in HCl
|
|
gptkbp:specificGravity
|
2.16–2.40
|
|
gptkbp:streak
|
White
|
|
gptkbp:symmetry
|
C2/m
|
|
gptkbp:tenacity
|
Brittle
|
|
gptkbp:transparency
|
Translucent
Transparent
|
|
gptkbp:uses
|
Decorative stone
Collector's mineral
|
|
gptkbp:bfsParent
|
gptkb:Tectosilicates
|
|
gptkbp:bfsLayer
|
7
|