Statements (43)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
granite
|
| gptkbp:associatedMinerals |
gptkb:apophyllite
gptkb:stilbite gptkb:calcite 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:Dana_classification |
77.1.3.1
|
| gptkbp:event |
hydrothermal veins
basaltic volcanic rocks |
| gptkbp:firstDescribed |
1818
|
| 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:IMAStatus |
approved mineral
|
| gptkbp:luster |
vitreous
pearly |
| gptkbp:namedAfter |
gptkb:Henry_Heuland
|
| gptkbp:specificGravity |
2.2–2.4
|
| gptkbp:streak |
white
|
| gptkbp:Strunz_classification |
9.GE.10
|
| gptkbp:transparency |
translucent
transparent |
| gptkbp:uses |
catalysis
water purification ion exchange molecular sieves |
| gptkbp:bfsParent |
gptkb:natrolite
|
| gptkbp:bfsLayer |
6
|