Statements (26)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
granite
|
| gptkbp:alsoKnownAs |
black hematite
hydrous manganese oxide |
| gptkbp:associatedMinerals |
gptkb:goethite
gptkb:hausmannite gptkb:manganite gptkb:pyrolusite limonite |
| gptkbp:category |
manganese oxide mineral
|
| gptkbp:chemicalFormula |
(Ba,H2O)2Mn5O10
|
| gptkbp:color |
black
|
| gptkbp:containsElement |
gptkb:water
manganese potassium barium |
| gptkbp:crystalSystem |
amorphous
|
| gptkbp:discoveredIn |
gptkb:Germany
|
| gptkbp:event |
oxidized manganese deposits
|
| gptkbp:hardnessMohs |
5-6
|
| https://www.w3.org/2000/01/rdf-schema#label |
psilomelane
|
| gptkbp:luster |
submetallic
|
| gptkbp:specificGravity |
3.7-4.7
|
| gptkbp:streak |
brownish black
|
| gptkbp:uses |
ore of manganese
|
| gptkbp:bfsParent |
gptkb:Appalachian_region
|
| gptkbp:bfsLayer |
5
|