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
|