Statements (31)
| 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 silicon beryllium cerium lanthanum neodymium |
| gptkbp:crystalSystem |
monoclinic
|
| 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 |
Gdn
|
| gptkbp:luster |
vitreous
|
| gptkbp:namedAfter |
gptkb:Johan_Gadolin
|
| gptkbp:notableFor |
source of rare earth elements
|
| gptkbp:radioactive |
yes
|
| gptkbp:relatedGroup |
nesosilicate
|
| gptkbp:specificGravity |
4.0–4.7
|
| gptkbp:streak |
grayish green
|
| gptkbp:transparency |
translucent to opaque
|
| gptkbp:bfsParent |
gptkb:Gd
gptkb:Gadolinium |
| gptkbp:bfsLayer |
7
|