|
gptkbp:instanceOf
|
granite
|
|
gptkbp:associatedMinerals
|
gptkb:apophyllite
gptkb:stilbite
gptkb:calcite
gptkb:chabazite
laumontite
|
|
gptkbp:category
|
zeolite
|
|
gptkbp:chemicalFormula
|
(Ca,Na)2-3Al3(Al,Si)2Si13O36·12H2O
|
|
gptkbp:cleavage
|
perfect
|
|
gptkbp:color
|
gptkb:orange
brown
green
red
white
yellow
colorless
pink
|
|
gptkbp:crystalSystem
|
monoclinic
|
|
gptkbp:discoveredBy
|
1818
|
|
gptkbp:event
|
hydrothermal veins
basaltic volcanic rocks
andesitic volcanic rocks
|
|
gptkbp:fracture
|
uneven
|
|
gptkbp:habit
|
fibrous aggregates
massive
tabular crystals
|
|
gptkbp:hardnessMohs
|
3.5–4
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Heulandite
|
|
gptkbp:IMA_symbol
|
gptkb:Hld
|
|
gptkbp:luster
|
vitreous
pearly
|
|
gptkbp:namedAfter
|
gptkb:Henry_Heuland
|
|
gptkbp:relatedGroup
|
Heulandite group
|
|
gptkbp:specificGravity
|
2.2–2.4
|
|
gptkbp:streak
|
white
|
|
gptkbp:symmetry
|
monoclinic 2/m
|
|
gptkbp:tenacity
|
brittle
|
|
gptkbp:transparency
|
translucent
transparent
|
|
gptkbp:uses
|
catalysis
water purification
ion exchange
|
|
gptkbp:bfsParent
|
gptkb:Tectosilicates
|
|
gptkbp:bfsLayer
|
7
|