Novgorodovaite
A valid IMA mineral species
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About Novgorodovaite
Margarita I. Novgorodova
Formula:
Ca2(C2O4)Cl2 · 2H2O
Colour:
colourless
Lustre:
Vitreous
Hardness:
2½
Specific Gravity:
2.38
Crystal System:
Monoclinic
Name:
Named in honor of Margarita Ivanovna Novgorodova (Новгородова Маргарита Ивановна) (b. 15 March 1938), Russian mineralogist and specialist in gold mineralogy. She was director of the A. E. Fersman Mineralogical Museum from 1996 to 2010.
This page provides mineralogical data about Novgorodovaite.
Unique Identifiers
Mindat ID:
11432
Long-form identifier:
mindat:1:1:11432:7
IMA Classification of Novgorodovaite
Approved
Approval year:
2000
First published:
2001
Classification of Novgorodovaite
10.AB.80
10 : ORGANIC COMPOUNDS
A : Salts of organic acids
B : Oxalates
10 : ORGANIC COMPOUNDS
A : Salts of organic acids
B : Oxalates
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Nov | 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 Novgorodovaite
Vitreous
Transparency:
Transparent
Colour:
Colourless
Streak:
White
Hardness:
2½ on Mohs scale
Hardness Data:
Measured
Tenacity:
Brittle
Cleavage:
Distinct/Good
Good on {100} and {010}
Good on {100} and {010}
Fracture:
Irregular/Uneven, Conchoidal
Density:
2.38(1) g/cm3 (Measured) 2.40 g/cm3 (Calculated)
Optical Data of Novgorodovaite
Type:
Biaxial (-)
RI values:
nα = 1.565(2) nβ = 1.645(2) nγ = 1.725(4)
2V:
Measured: 88° (10), Calculated: 87°
Max. Birefringence:
δ = 0.160
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.
Surface Relief:
Moderate
Pleochroism:
Non-pleochroic
Chemistry of Novgorodovaite
Mindat Formula:
Ca2(C2O4)Cl2 · 2H2O
Element Weights:
Crystallography of Novgorodovaite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 6.936(3) Å, b = 7.382(3) Å, c = 7.443(3) Å
β = 94.3°, γ = 1°
β = 94.3°, γ = 1°
Ratio:
a:b:c = 0.94 : 1 : 1.008
Unit Cell V:
380.02 ų
Z:
2
Morphology:
aggregates to 3 cm of grains to 7 mm
Comment:
Space Group: I2/m
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0012496 | Novgorodovaite | Rastsvetaeva R K, Chukanov N V, Nekrasov Y V (2001) Crystal structure of novgorodovaite, Ca2(C2O4)Cl2*2H2O Doklady Akademii Nauk SSSR 381 353-355 | 2001 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 2.917 Å | (100) |
| 2.956 Å | (80) |
| 5.062 Å | (70) |
| 4.323 Å | (70b) |
| 4.063 Å | (70b) |
| 4.812 Å | (50) |
| 3.644 Å | (50) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Near-surface Processes | |
| 25 : Evaporites (prebiotic) |
Type Occurrence of Novgorodovaite
General Appearance of Type Material:
grains up to 7 mm in size
Place of Conservation of Type Material:
Fersman Mineralogical Museum of Russian Academy of Sciences, Moscow.
Geological Setting of Type Material:
in a salt dome, observed in a drill core sample from 850 – 900 m depth
Synonyms of Novgorodovaite
Other Language Names for Novgorodovaite
Dutch:Novgorodovaiet
German:Novgorodovait
Russian:Новгородоваит
Simplified Chinese:水氯草酸钙石
Spanish:Novgorodovaita
Related Minerals - Strunz-mindat Grouping
| 10.AB. | Deveroite-(Ce) | Ce2(C2O4)3 · 10H2O |
| 10.AB. | Edwindavisite | Cu(C2O4)(NH3) |
| 10.AB.X | Falottaite | MnC2O4 · 3H2O |
| 10.AB. | Uroxite | [(UO2)2(C2O4)(OH)2(H2O)2] · H2O |
| 10.AB.05 | Katsarosite | Zn(C2O4) · 2H2O |
| 10.AB.05 | Andreybulakhite | Ni(C2O4) · 2H2O |
| 10.AB.05 | Humboldtine | Fe2+(C2O4) · 2H2O |
| 10.AB.05 | Lindbergite | Mn2+(C2O4) · 2H2O |
| 10.AB.10 | Glushinskite | Mg(C2O4) · 2H2O |
| 10.AB.15 | Moolooite | Cu(C2O4) · nH2O |
| 10.AB.20 | Stepanovite | NaMgFe3+(C2O4)3 · 8-9H2O |
| 10.AB.25 | Minguzzite | K3Fe3+(C2O4)3 · 3H2O |
| 10.AB.30 | Wheatleyite | Na2Cu(C2O4)2 · 2H2O |
| 10.AB.35 | Zhemchuzhnikovite | NaMgAl(C2O4)3 · 8H2O |
| 10.AB.40 | Weddellite | Ca(C2O4) · (2.5-x)H2O |
| 10.AB.45 | Whewellite | Ca(C2O4) · H2O |
| 10.AB.47 | Fiemmeite | Cu2(C2O4)(OH)2 · 2H2O |
| 10.AB.50 | Caoxite | Ca(C2O4) · 3H2O |
| 10.AB.50 | Middlebackite | Cu2C2O4(OH)2 |
| 10.AB.52 | Metauroxite | (UO2)2(C2O4)(OH)2(H2O)2 |
| 10.AB.55 | Oxammite | (NH4)2(C2O4) · H2O |
| 10.AB.60 | Natroxalate | Na2(C2O4) |
| 10.AB.60 | Phoxite | (NH4)2Mg2(C2O4)(PO3OH)2(H2O)4 |
| 10.AB.60 | Carboferriphoxite | [(NH4)K(H2CO3)][Fe3+(HPO4)(H2PO4)(C2O4)] |
| 10.AB.60 | Ferriphoxite | [(NH4)2K(H2O)][Fe3+(HPO4)2(C2O4)] |
| 10.AB.65 | Coskrenite-(Ce) | Ce2(SO4)2(C2O4) · 8H2O |
| 10.AB.70 | Levinsonite-(Y) | (Y,Nd,La)Al(C2O4)(SO4)2 · 12H2O |
| 10.AB.75 | Zugshunstite-(Ce) | (Ce,Nd,La)Al(C2O4)(SO4)2 · 12H2O |
Fluorescence of Novgorodovaite
none
Other Information
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 Novgorodovaite
mindat.org URL:
https://www.mindat.org/min-11432.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Novgorodovaite
Reference List:
Jambor, John L., Grew, Edward S., Roberts, Andrew C. (2002) New mineral names. American Mineralogist, 87. 1509-1513
Mandarino, Joseph A. (2003) New minerals. The Canadian Mineralogist, 41 (3) 803-828 doi:10.2113/gscanmin.41.3.803
Echigo, T., Kimata, M. (2010) Crystal Chemistry and Genesis of Organic Minerals: a Review of Oxalate and Polycyclic Aromatic Hydrocarbon Minerals. The Canadian Mineralogist, 48 (6) 1329-1357 doi:10.3749/canmin.48.5.1329
Localities for Novgorodovaite
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Kazakhstan (TL) | |
| Chukanov et al. (2001) |
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Chelkar salt dome, Aksai Valley, Shalkar District, Aktobe Region, Kazakhstan