Statements (32)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
granite
|
| gptkbp:category |
sulfide mineral
|
| gptkbp:chemicalFormula |
Cu2S
|
| gptkbp:cleavage |
poor
|
| gptkbp:color |
black
dark-gray |
| gptkbp:containsElement |
gptkb:sulfur
copper |
| gptkbp:crystalSystem |
monoclinic
|
| gptkbp:Dana_classification |
2.9.1.2
|
| gptkbp:diaphaneity |
opaque
|
| gptkbp:discoveredIn |
1829
|
| gptkbp:economicImportance |
important copper ore
|
| gptkbp:event |
copper ore deposits
|
| gptkbp:fracture |
uneven
|
| gptkbp:habit |
massive
granular tabular crystals |
| gptkbp:hardnessMohs |
2.5-3
|
| https://www.w3.org/2000/01/rdf-schema#label |
chalcocite
|
| gptkbp:IMA_symbol |
Cct
|
| gptkbp:luster |
metallic
|
| gptkbp:namedAfter |
Greek khalkos (copper)
|
| gptkbp:specificGravity |
5.5-5.8
|
| gptkbp:streak |
shiny black
|
| gptkbp:Strunz_classification |
2.BA.05a
|
| gptkbp:symmetry |
P21/c
|
| gptkbp:tenacity |
brittle
|
| gptkbp:transparency |
opaque
|
| gptkbp:bfsParent |
gptkb:chalcopyrite
gptkb:Chalcopyrite |
| gptkbp:bfsLayer |
5
|