Podlesnoite
A valid IMA mineral species
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About Podlesnoite
Aleksandr Semenovich Podlesnyi (podlesnoite)
Formula:
BaCa2(CO3)2F2
Colour:
Colorless, white
Lustre:
Vitreous
Hardness:
3½ - 4
Specific Gravity:
3.62
Crystal System:
Orthorhombic
Name:
Named in honor of Aleksandr Semenovich Podlesnyi (Александр Семенович Подлесный) (28 November 1948, Zabolottsi, Ivanichesky district, Volyn region, Ukraine, USSR – 13 October 2010), Russian amateur mineralogist and collector in recognition of his significant contributions to the mineralogy of the Khibiny massif. He worked in the Kirovskii underground mine, assembling the best systematic collection of Kirovskii mine minerals. He collected and provided for study the specimens which became the holotype specimens of eleven new species and the cotype specimens of four additional new species. Pronounced "pod-lez'-no-ite".
This page provides mineralogical data about Podlesnoite.
Unique Identifiers
Mindat ID:
30907
Long-form identifier:
mindat:1:1:30907:7
IMA Classification of Podlesnoite
Approved
Approval year:
2006
First published:
2008
Classification of Podlesnoite
5.BC.15
5 : CARBONATES (NITRATES)
B : Carbonates with additional anions, without H2O
C : With alkali-earth cations
5 : CARBONATES (NITRATES)
B : Carbonates with additional anions, without H2O
C : With alkali-earth cations
16a.2.5.1
16a : ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
2 : (AB)3(XO3)2Zq
16a : ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
2 : (AB)3(XO3)2Zq
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 for Standard |
|---|---|---|
| Pod | 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 Podlesnoite
Vitreous
Transparency:
Transparent, Translucent
Colour:
Colorless, white
Streak:
White
Hardness:
3½ - 4 on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Conchoidal
Density:
3.62(1) g/cm3 (Measured) 3.60 g/cm3 (Calculated)
Optical Data of Podlesnoite
Type:
Biaxial (-)
RI values:
nα = 1.500 nβ = 1.612(2) nγ = 01.614(2)
2V:
Measured: 10° (5), Calculated: 14°
Max. Birefringence:
δ = 0.114
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. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
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. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
Surface Relief:
Moderate
Pleochroism:
Non-pleochroic
Chemistry of Podlesnoite
Mindat Formula:
BaCa2(CO3)2F2
Element Weights:
Crystallography of Podlesnoite
Crystal System:
Orthorhombic
Class (H-M):
mmm(2/m2/m2/m) - Dipyramidal
Space Group:
Cmcm
Cell Parameters:
a = 12.501(8) Å, b = 5.846(3) Å, c = 9.443(5) Å
Ratio:
a:b:c = 2.138 : 1 : 1.615
Unit Cell V:
690.1 ų
Z:
4
Morphology:
Prismatic crystals, radial spherulites.
Forms include {100}, {110}, {210}, {001}, {101}, {112}, {313}, {111} and {021}.
Forms include {100}, {110}, {210}, {001}, {101}, {112}, {313}, {111} and {021}.
Crystal Structure
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2x2x2 | 3x3x3 | 4x4x4
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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) |
|---|---|---|---|---|---|---|---|
| 0011129 | Podlesnoite | Zubkova N V, Pushcharovsky D Y, Pekov I V, Rabadanov M K (2007) The crystal structure of podlesnoite, BaCa2(CO3)2F2 Zeitschrift fur Kristallographie 222 474-476 | 2007 | Kirovskii mine, Khibiny alkaline massif, Kola Peninsula, Russia | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 5.303 Å | (21) |
| 3.527 Å | (100) |
| 3.397 Å | (71) |
| 2.609 Å | (20) |
| 2.313 Å | (43) |
| 2.302 Å | (22) |
| 1.948 Å | (39) |
| 1.940 Å | (40) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 35 : Ultra-alkali and agpaitic igneous rocks |
Type Occurrence of Podlesnoite
General Appearance of Type Material:
Perfect prismatic crystals up to 1x1x4 mm typically combined in groups, and radial fibrous spherulites up to 8 mm in diameter.
Place of Conservation of Type Material:
Fersman Mineralogical Museum, Moscow, Russia.
Geological Setting of Type Material:
In cavities within a hydrothermal lens-shaped body located in urtite rock.
Associated Minerals at Type Locality:
Synonyms of Podlesnoite
Other Language Names for Podlesnoite
Dutch:Podlesnoiet
German:Podlesnoit
Common Associates
Associations Based on Photo Data:
Related Minerals - Strunz-mindat Grouping
| 5.BC.05 | Brenkite | Ca2(CO3)F2 |
| 5.BC.10 | Rouvilleite | Na3CaMn2+(CO3)3F |
Fluorescence of Podlesnoite
Prismatic crystals - pinkish orange in SW
Radial spherulites - bluish lilac SW, lilac-blue LW
Radial spherulites - bluish lilac SW, lilac-blue LW
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 Podlesnoite
mindat.org URL:
https://www.mindat.org/min-30907.html
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References for Podlesnoite
Reference List:
Zubkova, Natalia V.; Pushcharovsky, Dmitry Yu.; Pekov, Igor V.; Rabadanov, Murtazali Kh. (2007) The crystal structure of podlesnoite, BaCa2(CO3)2F2. Zeitschrift für Kristallographie, 222 (9). 474-476 doi:10.1524/zkri.2007.222.9.474
Localities for Podlesnoite
Showing 1 localities.
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.
Russia (TL) | |
| Pekov et al. (2008) |
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Kirovskii apatite mine, Kukisvumchorr Mt, Murmansk Oblast, Russia