Statements (21)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:granite
|
| gptkbp:chemicalFormula |
Cu2S
|
| gptkbp:cleavage |
poor
|
| gptkbp:color |
black
dark gray |
| gptkbp:component |
copper
|
| gptkbp:crystalSystem |
orthorhombic
|
| gptkbp:density |
5.5-5.8 g/cm3
|
| gptkbp:discoveredIn |
1832
|
| gptkbp:event |
copper ore deposits
|
| gptkbp:fracture |
uneven
|
| gptkbp:hardnessMohs |
2.5-3
|
| gptkbp:luster |
metallic
|
| gptkbp:namedAfter |
Greek word for copper (chalkos)
|
| gptkbp:streak |
shiny black
|
| gptkbp:tenacity |
brittle
|
| gptkbp:transparency |
opaque
|
| gptkbp:uses |
copper ore
|
| gptkbp:bfsParent |
gptkb:Tsumeb_mine
|
| gptkbp:bfsLayer |
7
|
| https://www.w3.org/2000/01/rdf-schema#label |
chalcosite
|