Statements (24)
Predicate | Object |
---|---|
gptkbp:instanceOf |
gptkb:cryptocurrency
|
gptkbp:containsTown |
gptkb:Spruce_Pine
|
gptkbp:country |
gptkb:United_States
|
gptkbp:exportedTo |
global markets
|
gptkbp:featureType |
gptkb:Spruce_Pine_Pegmatite
|
gptkbp:hasResource |
feldspar
quartz mica |
https://www.w3.org/2000/01/rdf-schema#label |
Spruce Pine Mining District
|
gptkbp:knownFor |
mica mining
feldspar mining quartz mining |
gptkbp:locatedIn |
gptkb:North_Carolina
gptkb:Mitchell_County |
gptkbp:miningStarted |
early 20th century
|
gptkbp:notableCompany |
gptkb:Sibelco
gptkb:The_Quartz_Corp gptkb:Unimin_Corporation |
gptkbp:notableFor |
world's purest quartz
|
gptkbp:quartzUsedFor |
semiconductor industry
optical fiber production |
gptkbp:supplies |
high-purity quartz
|
gptkbp:bfsParent |
gptkb:Spruce_Pine
|
gptkbp:bfsLayer |
7
|