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|Name:||Named after Baghdad, the capital of Iraq, within which country lies the type locality.|
Classification of Baghdadite
|Strunz 8th edition ID:||8/C.11-30|
|Nickel-Strunz 10th (pending) edition ID:||9.BE.17|
9 : SILICATES (Germanates)
B : Sorosilicates
E : Si2O7 groups, with additional anions; cations in octahedral  and greater coordination
|Dana 8th edition ID:||188.8.131.52|
56 : SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
2 : Si2O7 Groups and O, OH, F, and H2O with cations in  and/or > coordination
|Hey's CIM Ref.:||14.10.25|
14 : Silicates not Containing Aluminum
10 : Silicates of Zr or Hf
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Type Occurrence of Baghdadite
|Type Locality:||Dupezeh Mt., Hero, Qala-Diz (Qala-Dizeh; Qala-Diza), Iraq|
|Year of Discovery:||1986|
Physical Properties of Baghdadite
Crystallography of Baghdadite
|Cell Parameters:||a = 10.42Å, b = 10.16Å, c = 7.36Å|
β = 91.1°
|Ratio:||a:b:c = 1.026 : 1 : 0.724|
|Unit Cell Volume:||V 779.04 Å³ (Calculated from Unit Cell)|
Optical Data of Baghdadite
|RI values:||nα = 1.652 nβ = 1.658 nγ = 1.670|
|2V:||Measured: 72° , Calculated: 72°|
|Maximum Birefringence:||δ = 0.018|
Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Chemical Properties of Baghdadite
|Simplified for copy/paste:||Ca3(Zr,Ti)(Si2O7)O2|
|Essential elements:||Ca, O, Si, Zr|
|All elements listed in formula:||Ca, O, Si, Ti, Zr|
Relationship of Baghdadite to other Species
|Member of:||Wöhlerite Group|
|Other Members of Group:|
|Related Minerals - Nickel-Strunz Grouping):|
|Related Minerals - Hey's Index Grouping:|
Other Names for Baghdadite
|Health Warning:||No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.|
References for Baghdadite
Mineralogical Magazine (1986): 50: 119-123.
Internet Links for Baghdadite
Localities for Baghdadite
The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.