Statements (27)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:valley
|
| gptkbp:containsMineral |
gptkb:jewelry
corundum |
| gptkbp:country |
gptkb:United_States
|
| gptkbp:discoveredBy |
1895
|
| gptkbp:features |
Yogo sapphires are naturally blue
Yogo sapphires rarely require heat treatment |
| gptkbp:featureType |
gptkb:dam
|
| gptkbp:historicalSignificance |
site of sapphire mining boom
|
| https://www.w3.org/2000/01/rdf-schema#label |
Yogo Gulch
|
| gptkbp:knownFor |
gptkb:Yogo_sapphires
|
| gptkbp:locatedIn |
gptkb:Montana
gptkb:Judith_Basin_County |
| gptkbp:miningMethod |
underground mining
placer mining |
| gptkbp:miningStarted |
1896
|
| gptkbp:namedAfter |
Yogo Creek
|
| gptkbp:nearestCity |
Utica, Montana
|
| gptkbp:notableFor |
gptkb:English_Mine
American Mine Sapphire Village Mine |
| gptkbp:sapphireColor |
cornflower blue
|
| gptkbp:sapphiresExportedTo |
gptkb:Asia
gptkb:Europe gptkb:United_States |
| gptkbp:bfsParent |
gptkb:Montana_Yogo_sapphires
|
| gptkbp:bfsLayer |
8
|