Mineevite-(Y)
A valid IMA mineral species
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About Mineevite-(Y)
Formula:
Na25Ba(Y,Gd,Dy)2(CO3)11(HCO3)4(SO4)2F2Cl
Colour:
Pale green to yellowish-green.
Lustre:
Vitreous, Pearly
Hardness:
4
Specific Gravity:
2.85
Crystal System:
Hexagonal
Name:
Named by A.P. Khomjakov, L.I. Polezhaeva, N.A. Yamnova, and D.Y. Pushcharovsky in 1992 honor of Dmitrii (Dmitry) Andreevich Mineev (Дмитрий Андреевич Минеев) (14 April 1935, Moscow, USSR - 5 August 1992, Moscow, Russia), Russian mineralogist and geochemist, and specialist in the field of geochemistry of rare earth elements at the Moscow Geological Prospecting Institute. He was a founder of the Russian Academy of Sciences and its first president. The suffix follows the Levinson rule for minerals with essential REE, denoting predominant yttrium.
This page provides mineralogical data about Mineevite-(Y).
Unique Identifiers
Mindat ID:
2718
Long-form identifier:
mindat:1:1:2718:8
GUID
(UUID V4):
(UUID V4):
70ba91b8-45ab-41f4-aa02-db39ece141a8
IMA Classification of Mineevite-(Y)
Classification of Mineevite-(Y)
5.BF.25
5 : CARBONATES (NITRATES)
B : Carbonates with additional anions, without H2O
F : With (Cl), SO4, PO4, TeO3
5 : CARBONATES (NITRATES)
B : Carbonates with additional anions, without H2O
F : With (Cl), SO4, PO4, TeO3
17.1.14.1
17 : COMPOUND CARBONATES
1 : Miscellaneous
17 : COMPOUND CARBONATES
1 : Miscellaneous
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 |
---|---|---|
Mev-Y | 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 Mineevite-(Y)
Vitreous, Pearly
Transparency:
Transparent
Comment:
Vitreous luster on fractures, pearly on cleavage.
Colour:
Pale green to yellowish-green.
Hardness:
4 on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
{0001}
{0001}
Fracture:
Step-Like
Density:
2.85(2) g/cm3 (Measured) 2.84 g/cm3 (Calculated)
Optical Data of Mineevite-(Y)
Type:
Uniaxial (-)
RI values:
nω = 1.536 nε = 1.510
Max Birefringence:
δ = 0.026
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Low
Chemistry of Mineevite-(Y)
Mindat Formula:
Na25Ba(Y,Gd,Dy)2(CO3)11(HCO3)4(SO4)2F2Cl
Crystallography of Mineevite-(Y)
Crystal System:
Hexagonal
Class (H-M):
6/m - Dipyramidal
Space Group:
P63/m
Cell Parameters:
a = 8.811(7) Å, c = 37.03(3) Å
Ratio:
a:c = 1 : 4.203
Unit Cell V:
2,489.63 ų (Calculated from Unit Cell)
Z:
2
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) |
---|---|---|---|---|---|---|---|
0015592 | Mineevite-(Y) | Yamonva N A, Pushcharovskii D Y, Vyatkin S V, Khomyakov A P (1992) Crystal structure of the new native sulfate-carbonate Na25BaTR2(CO3)11(HCO3)4(SO4)2F2Cl Soviet Physics Crystallography 37 753-756 | 1992 | Lovozero pegmatites, Kola peninsula, Russia | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
2.829 Å | (100) |
2.270 Å | (90) |
2.531 Å | (71 broad) |
2.659 Å | (51broad) |
1.660 Å | (46) |
3.32 Å | (40) |
7.61 Å | (39) |
Comments:
Mt. Alluaiv, Kola Peninsula, Russia. The data are from the type description.
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 | |
Stage 7: Great Oxidation Event | <2.4 |
47b : [Sulfates and sulfites] | |
47c : [Carbonates, phosphates, borates, nitrates] | |
47g : [Halogen-bearing surface weathering minerals] |
Type Occurrence of Mineevite-(Y)
General Appearance of Type Material:
Pale green to yellowish green irregular grains 0.5-1.0 cm in diameter.
Place of Conservation of Type Material:
Fersman Mineralogical Museum, Moscow, Russia, p575/1.
Geological Setting of Type Material:
Pegmatites in a differentiated alkalic massif.
Associated Minerals at Type Locality:
Synonyms of Mineevite-(Y)
Other Language Names for Mineevite-(Y)
Russian:Минеевит-(Y)
Related Minerals - Strunz-mindat Grouping
5.BF.05 | Ferrotychite | Na6(Fe,Mn,Mg)2(CO3)4(SO4) |
5.BF.05 | Manganotychite | Na6Mn2(CO3)4(SO4) |
5.BF.05 | Northupite | Na3Mg(CO3)2Cl |
5.BF.05 | Tychite | Na6Mg2(CO3)4(SO4) |
5.BF.10 | Bonshtedtite | Na3Fe2+(CO3)(PO4) |
5.BF.10 | Bradleyite | Na3Mg(CO3)(PO4) |
5.BF.10 | Crawfordite | Na3Sr(CO3)(PO4) |
5.BF.10 | Sidorenkite | Na3Mn2+(CO3)(PO4) |
5.BF.15 | Daqingshanite-(Ce) | (Sr,Ca,Ba)3(Ce,La)(CO3)3-x(PO4)(OH,F)2x |
5.BF.20 | Reederite-(Y) | (Na,Mn)15Y2(CO3)9(FSO3)Cl |
5.BF.30 | Brianyoungite | Zn3(CO3,SO4)(OH)4 |
5.BF.35 | Philolithite | Pb12Mn2+(Mg,Mn2+)2(Mn2+,Mg)4(CO3)4(SO4)O6(OH)12Cl4 |
5.BF.40 | Leadhillite | Pb4(CO3)2(SO4)(OH)2 |
5.BF.40 | Macphersonite | Pb4(CO3)2(SO4)(OH)2 |
5.BF.40 | Susannite | Pb4(CO3)2(SO4)(OH)2 |
5.BF.45 | Peatite-(Y) | Li4Na12Y12(PO4)12(CO3)4(F,OH)8 |
5.BF.50 | Ramikite-(Y) | Li4(Na,Ca)12Y6Zr6(PO4)12(CO3)4O4[(OH),F]4 |
Fluorescence of Mineevite-(Y)
Weak yellowish green fluorescence.
Other Information
IR Spectrum:
The infrared pattern has absorption bands (s = strong) at 3400-3500, 1790, 1740, 1600, 1540s, 1520s, 1438, 1383s, 1154s, 1128, 1077, 1060,920, 897s, 882, 870s, 830, 766s, 728, 708, 690, 650s, 635, and 460 cm-1.
Thermal Behaviour:
DTA: Endotherms at 410, 500, and 690°C (decarbonation and dehydroxylation).
TGA: Weight losses of 2.5% from 20-220°C (dissociation of nahcolite and other impurities), 8.1% from 220-480°C, 1.9% from 480-620°C, and 1.9% from 620-1000°C.
TGA: Weight losses of 2.5% from 20-220°C (dissociation of nahcolite and other impurities), 8.1% from 220-480°C, 1.9% from 480-620°C, and 1.9% from 620-1000°C.
Notes:
Stable in water, but readily decomposed in dilute acids (including citric) with effervescence.
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 Mineevite-(Y)
mindat.org URL:
https://www.mindat.org/min-2718.html
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References for Mineevite-(Y)
Localities for Mineevite-(Y)
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).
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.
All localities listed without proper references should be considered as questionable.
Russia (TL) | |
| Khomjakov et al. (1992) +1 other reference |
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Alluaiv Mountain, Lovozersky District, Murmansk Oblast, Russia