Statements (35)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:granite
|
| gptkbp:associatedMinerals |
gptkb:chlorite
gptkb:calcite gptkb:albite quartz |
| gptkbp:chemicalFormula |
Ca2(Al,Fe)3(SiO4)3(OH)
|
| gptkbp:cleavage |
perfect on [001]
|
| gptkbp:color |
green
yellow-green pistachio-green |
| gptkbp:crystalSystem |
monoclinic
|
| gptkbp:discoveredBy |
gptkb:René_Just_Haüy
|
| gptkbp:discoveredIn |
1801
|
| gptkbp:event |
metamorphic rocks
hydrothermal veins |
| gptkbp:fracture |
uneven
|
| gptkbp:hardnessMohs |
6–7
|
| gptkbp:IMA_symbol |
Epd
|
| gptkbp:luster |
vitreous
|
| gptkbp:namedAfter |
Greek word 'epidosis' (increase)
|
| gptkbp:opticalProperties |
biaxial (+)
|
| gptkbp:pleochroism |
strong
|
| gptkbp:refractiveIndex |
1.729–1.768
|
| gptkbp:relatedGroup |
gptkb:epidote_group
|
| gptkbp:specificGravity |
3.3–3.5
|
| gptkbp:streak |
grayish white
|
| gptkbp:transparency |
translucent
transparent |
| gptkbp:uses |
gptkb:granite
collector's mineral |
| gptkbp:bfsParent |
gptkb:Babingtonite
gptkb:Clinozoisite gptkb:pumpellyite |
| gptkbp:bfsLayer |
6
|
| https://www.w3.org/2000/01/rdf-schema#label |
epidote
|