Statements (13)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:jewelry
|
| gptkbp:color |
gptkb:blue
|
| gptkbp:composed_of |
Al2 O3
|
| gptkbp:difficulty |
7.5 to 8 on Mohs scale
|
| https://www.w3.org/2000/01/rdf-schema#label |
water sapphire
|
| gptkbp:is_visible_from |
transparent to translucent
|
| gptkbp:jewels |
September
|
| gptkbp:luster |
vitreous
|
| gptkbp:origin |
gptkb:Sri_Lanka
|
| gptkbp:treatment |
heat treatment
|
| gptkbp:uses |
gptkb:jewelry
|
| gptkbp:bfsParent |
gptkb:Iolite
|
| gptkbp:bfsLayer |
6
|