Statements (34)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
granite
|
| gptkbp:associatedMinerals |
gptkb:franklinite
gptkb:rhodonite gptkb:spessartine gptkb:willemite gptkb:calcite feldspar quartz |
| gptkbp:category |
nesosilicate
|
| gptkbp:chemicalFormula |
Mn2SiO4
|
| gptkbp:cleavage |
poor
|
| gptkbp:color |
brown
gray green |
| gptkbp:crystalSystem |
orthorhombic
|
| gptkbp:discoveredIn |
1866
|
| gptkbp:event |
metamorphosed manganese deposits
skarn deposits |
| gptkbp:firstDescribed |
gptkb:Sterling_Hill,_New_Jersey,_USA
|
| gptkbp:fracture |
conchoidal
|
| gptkbp:hardnessMohs |
6
|
| https://www.w3.org/2000/01/rdf-schema#label |
Tephroite
|
| gptkbp:IMA_symbol |
Tph
|
| gptkbp:luster |
vitreous
subresinous |
| gptkbp:namedAfter |
Greek word tephros (ash gray)
|
| gptkbp:relatedGroup |
gptkb:olivine_group
|
| gptkbp:specificGravity |
3.87–4.12
|
| gptkbp:streak |
white
|
| gptkbp:symmetry |
Pbnm
|
| gptkbp:transparency |
translucent
transparent |
| gptkbp:bfsParent |
gptkb:Rhodonite
|
| gptkbp:bfsLayer |
6
|