Statements (33)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
mineral group
|
| gptkbp:A_site_cations |
Ca, Sr, Pb, rare earth elements
|
| gptkbp:B_site_cations |
Al, Fe, Mn, Cr
|
| gptkbp:category |
inosilicate minerals
|
| gptkbp:chemicalFormula |
A2B3(Si2O7)(SiO4)O(OH)
|
| gptkbp:cleavage |
perfect on [001]
|
| gptkbp:color |
brown
green yellow-green |
| gptkbp:containsMineral |
gptkb:epidote
gptkb:piemontite allanite clinozoisite |
| gptkbp:crystalSystem |
monoclinic
|
| gptkbp:discoveredIn |
1801
|
| gptkbp:event |
metamorphic rocks
hydrothermal veins |
| gptkbp:fracture |
uneven
|
| gptkbp:habit |
prismatic crystals
|
| gptkbp:hardnessMohs |
6–7
|
| https://www.w3.org/2000/01/rdf-schema#label |
epidote group
|
| gptkbp:IMA_symbol |
gptkb:Epd-Grp
|
| gptkbp:luster |
vitreous
|
| gptkbp:namedAfter |
gptkb:epidote
|
| gptkbp:optical_properties |
biaxial (+)
|
| gptkbp:pleochroism |
strong
|
| gptkbp:refractiveIndex |
1.72–1.77
|
| gptkbp:specificGravity |
3.3–3.6
|
| gptkbp:streak |
grayish white
|
| gptkbp:transparency |
transparent to translucent
|
| gptkbp:bfsParent |
gptkb:Clinozoisite
gptkb:Epidote |
| gptkbp:bfsLayer |
6
|