Statements (30)
Predicate | Object |
---|---|
gptkbp:instanceOf |
granite
|
gptkbp:category |
silicate mineral
|
gptkbp:chemicalFormula |
(Ce,La,Nd,Y)2FeBe2Si2O10
|
gptkbp:cleavage |
poor
|
gptkbp:color |
black
dark brown |
gptkbp:containsElement |
gptkb:yttrium
iron oxygen silicon beryllium cerium |
gptkbp:crystalSystem |
monoclinic
|
gptkbp:density |
4.0-4.7 g/cm³
|
gptkbp:discoveredIn |
gptkb:Sweden
1788 |
gptkbp:fracture |
conchoidal
|
gptkbp:hardnessMohs |
6.5-7
|
https://www.w3.org/2000/01/rdf-schema#label |
gadolinite
|
gptkbp:IMA_symbol |
gptkb:Gad
|
gptkbp:luster |
vitreous
|
gptkbp:namedAfter |
gptkb:Johan_Gadolin
|
gptkbp:radioactive |
yes
|
gptkbp:relatedGroup |
nesosilicate
|
gptkbp:streak |
grayish green
|
gptkbp:transparency |
translucent to opaque
|
gptkbp:uses |
source of rare earth elements
|
gptkbp:bfsParent |
gptkb:gadolinium
gptkb:Scandium |
gptkbp:bfsLayer |
6
|