Dargaite (original) (raw)
A valid IMA mineral species
Formula:
BaCa12(SiO4)4(SO4)2O3
Specific Gravity:
3.235 (Calculated)
Name:
Named for the type locality Canyon (Nahal) Darga.
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:46885:7
91accc50-e383-4907-bfa3-528e63e21db1
IMA Classification of DargaiteHide
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Type description reference:
Galuskina, Irina O., Gfeller, Frank, Galuskin, Evgeny V., Armbruster, Thomas, Vapnik, Yevgeny, Dulski, Mateusz, Gardocki, Mariusz, Jeżak, Lidia, Murashko, Mikhail (2019) New minerals with modular structure derived from hatrurite from the pyrometamorphic rocks. Part IV: Dargaite, BaCa12(SiO4)4(SO4)2O3, from Nahal Darga, Palestinian Autonomy. Mineralogical Magazine, 83 (1) 81-88 doi:10.1180/minmag.2017.081.095
Classification of DargaiteHide
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9.AH.35
9 : SILICATES (Germanates)
A : Nesosilicates
H : Nesosilicates with CO3, SO4, PO4, etc.
Mineral SymbolsHide
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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Drg | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of DargaiteHide
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Hardness:
VHN50=380 - 492 kg/mm2 - Vickers
Cleavage:
Poor/Indistinct
(001)
Density:
3.235 g/cm3 (Calculated)
Comment:
could not be measured due to inclusions
Optical Data of DargaiteHide
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RI values:
_n_ω = 1.643(3) _n_ε = 1.639(3)
δ = 0.004
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Pleochroism:
Non-pleochroic
Chemistry of DargaiteHide
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Mindat Formula:
BaCa12(SiO4)4(SO4)2O3
Crystallography of DargaiteHide
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Class (H-M):
3_m_ - Ditrigonal Pyramidal
Cell Parameters:
a = 7.1874(4) Å, c = 41.292(3) Å
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.103 Å | (100) |
| 2.753 Å | (95) |
| 2.750 Å | (88) |
| 2.665 Å | (63) |
| 2.141 Å | (43) |
| 1.987 Å | (35) |
| 1.797 Å | (62) |
| 1.539 Å | (58) |
Geological EnvironmentHide
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Type Occurrence of DargaiteHide
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Place of Conservation of Type Material:
Type material is deposited in the collections of the Fersman Mineralogical Museum, Leninskiy pr., 18/к2, 115162 Moscow, Russia, catalogue number 4713/2.
Geological Setting of Type Material:
Associated Minerals at Type Locality:
Reference:
Gfeller, F., Galuskina, I.O., Galuskin, E.V., Armbruster, T., Vapnik, Y., Dulski, M., Gardocki, M., Jeżak, L., Murashko, M. (2019) New minerals with modular structure derived from hatrurite from the pyrometamorphic rocks, part IV: Dargaite, BaCa12(SiO4)4(SO4)2O3, from Nahal Darga, Palestinian Autonomy. Mineralogical Magazine: 83(1): 81-88.
Synonyms of DargaiteHide
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Relationship of Dargaite to other SpeciesHide
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Other Members of this group:
| Arctite | Na2Ca4(PO4)3F | Trig. 3_m_ _(_32/m ) : R_3_m |
|---|---|---|
| Ariegilatite | BaCa12(SiO4)4(PO4)2F2O | Trig. 3_m_ _(_32/m ) : R_3_m |
| Nabimusaite | KCa12(SiO4)4(SO4)2O2F | Trig. 3_m_ _(_32/m ) : R_3_m |
Related Minerals - Strunz-mindat GroupingHide
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| 9.AH. | Fluorbritholite-(Nd) | Ca2Nd3(SiO4)3F | Hex. 6/m : _P_63/m |
|---|---|---|---|
| 9.AH.05 | Iimoriite-(Y) | Y2[SiO4][CO3] | Tric. 1 : _P_1 |
| 9.AH.10 | Tundrite-(Ce) | Na2Ce2Ti(SiO4)(CO3)2O2 | Tric. 1 : _P_1 |
| 9.AH.10 | Tundrite-(Nd) | Na2(Nd,Ce)2Ti(SiO4)(CO3)2O2 | |
| 9.AH.15 | Spurrite | Ca5(SiO4)2(CO3) | Mon. 2/m : _P_21/b |
| 9.AH.15 | Galuskinite | Ca7(SiO4)3(CO3) | Mon. 2/m : _P_21/b |
| 9.AH.20 | Ternesite | Ca5(SiO4)2(SO4) | Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a |
| 9.AH.20 | Silicocarnotite | Ca5[(SiO4)(PO4)](PO4) | Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a |
| 9.AH.25 | Britholite-(Ce) | (Ce,Ca)5(SiO4)3OH | Hex. 6/m : _P_63/m |
| 9.AH.25 | Britholite-(Y) | (Y,Ca)5(SiO4)3OH | Hex. 6/m : _P_63/m |
| 9.AH.25 | Chlorellestadite | Ca5(SiO4)1.5(SO4)1.5Cl | Hex. 6/m : _P_63/m |
| 9.AH.25 | Fluorbritholite-(Ce) | (Ce,Ca)5(SiO4)3F | Hex. 6/m : _P_63/m |
| 9.AH.25 | Fluorellestadite | Ca5(SiO4)1.5(SO4)1.5F | Hex. 6/m : _P_63/m |
| 9.AH.25 | Hydroxylellestadite | Ca5(SiO4)1.5(SO4)1.5(OH) | Hex. 6/m m m _(_6/_m_2/_m_2/m ) : _P_63/m c m |
| 9.AH.25 | Mattheddleite | Pb5(SiO4)1.5(SO4)1.5(Cl,OH) | Hex. 6/m : _P_63/m |
| 9.AH.25 | Tritomite-(Ce) | Ce5(SiO4,BO4)3(OH,O) | |
| 9.AH.25 | Tritomite-(Y) | Y5(SiO4,BO4)3(O,OH,F) | |
| 9.AH.25 | Fluorcalciobritholite | (Ca,REE)5(SiO4,PO4)3F | Hex. 6/m : _P_63/m |
| 9.AH.25 | Fluorbritholite-(Y) | (Y,Ca)5(SiO4)3F | Hex. 6/m : _P_63/m |
| 9.AH.25 | Britholite-(La) | Ca2(La,Ce,Ca)3(SiO4,PO4)3(OH,F) | |
| 9.AH.25 | Calciobritholite | (Ca,Y)5(SiO4,PO4)3(OH) | |
| 9.AH.35 | Nabimusaite | KCa12(SiO4)4(SO4)2O2F | Trig. 3_m_ _(_32/m ) : R_3_m |
| 9.AH.40 | Zadovite | BaCa6[(SiO4)(PO4)](PO4)2F | Trig. 3_m_ : R_3_m |
| 9.AH.40 | Gazeevite | BaCa6(SiO4)2(SO4)2O | Trig. 3_m_ _(_32/m ) : R_3_m |
| 9.AH.40 | Stracherite | BaCa6(SiO4)2[(PO4)(CO3)]2F | Trig. 3_m_ _(_32/m ) : R_3_m |
| 9.AH.45 | Flamite | Ca8-x(Na,K)x(SiO4)4-x(PO4)x | Orth. m _m_2 |
| 9.AH.50 | Byzantievite | Ba5(Ca,REE,Y)22(Ti,Nb)18(SiO4)4[(PO4),(SiO4)]4(BO3)9O22[(OH),F]43(H2O)1.5 | Trig. 3 : _R_3 |
| 9.AH.55 | Greenwoodite | (Ba,V3+O)2V3+9(Fe3+,Fe2+)2Si2O22 | Trig. 3_m_ _(_32/m ) : _P_3_m_1 |
| 9.AH.60 | Kihlmanite-(Ce) | Ce2TiO2(SiO4)(HCO3)2(H2O) | Tric. 1 : _P_1 |
| 9.AH.65 | Tsangpoite | Ca5(PO4)2(SiO4) | Hex. |
| 9.AH.70 | Enalite | (Th,REE,Al) [(PO4),(SiO4),(OH)] | Tet. |
Fluorescence of DargaiteHide
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Other InformationHide
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Notes:
Raman bands [cm-1]: 122, 263, 323, 464, 523, 563, 641 and 644, 829 and 869, 947, 991 and 1116
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for DargaiteHide
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References for DargaiteHide
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Reference List:
Galuskina, Irina O., Gfeller, Frank, Galuskin, Evgeny V., Armbruster, Thomas, Vapnik, Yevgeny, Dulski, Mateusz, Gardocki, Mariusz, Jeżak, Lidia, Murashko, Mikhail (2019) New minerals with modular structure derived from hatrurite from the pyrometamorphic rocks. Part IV: Dargaite, BaCa12(SiO4)4(SO4)2O3, from Nahal Darga, Palestinian Autonomy. Mineralogical Magazine, 83 (1) 81-88 doi:10.1180/minmag.2017.081.095
Localities for DargaiteHide
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This 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.
Locality ListHide
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- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. 
- Good crystals or important locality for species. 
- World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
| Palestine (TL) | |
|---|---|
| West Bank Bethlehem Governorate ⓘ Nahal Darga (TL) | Galuskina et al. (2019) |