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Mineral Reference Lookup for ecdemita

This reference page contains mineralogic data for ecdemita and folklore and metaphysical beliefs. If the mineral is an alternate naming of a more common name, the more common mineral's data is displayed below the list of synonyms.


Minerals matching ecdemita in the database: Ecdemita  

Mineralogical Reference

ecdemita
MineralEcdemita
SynonymEcdemite

Ecdemite (synonym)

MineralEcdemite
ChemistryPb 6 As 2 O 7 Cl 4
ColorGreenish -Yellow Yellow
LusterVitreous
TransparencyTetragonal
CrystalSystemTetragonal
Hardness2½ - 3
StreakLight yellow
IMAStatusApproved
Discovered1877
CellParametersa = 10.8c = 25.62
Ratioa:c = 1 : 2.372
OpticalTypeUniaxial (-)
RIn ω =2.320 n ε =2.250
Birefringenceδ=0.070
SurfaceReliefVery High
TypeLocalityLångban Filipstad Värmland Sweden
Strunz3/D.10-100 3 : Halides D : Oxi-halogenides with Mg - Mn - Cu - Zn - Sn 10 : Cotunnite - Matlockite series
AGSLB_003
FLPND_028
KYFSTUM_235
CALGDSPH14_042
OCOGEO_949
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