Reederite-(Y)
A valid IMA mineral species
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Formula:
(Na,Mn)15Y2(CO3)9(FSO3)Cl
Colour:
Yellow to orange-brown
Lustre:
Vitreous
Hardness:
3 - 3½
Specific Gravity:
2.91
Crystal System:
Hexagonal
Name:
Named in honor of Professor Richard J. Reeder, at the State University of New York at Stony Brook, for his significant contributions to carbonate mineralogy. The suffix/modifier follows the Levinson rule for minerals with essential REE and the predominance of, in this case, yttrium.
Presently, the only known mineral with a fluorosulphate (FSO3)- anion.
Unique Identifiers
Mindat ID:
3381
Long-form identifier:
mindat:1:1:3381:3
GUID
(UUID V4):
(UUID V4):
e3ea644d-3bab-4dab-b052-edd2ae752f48
IMA Classification of Reederite-(Y)
Classification of Reederite-(Y)
5.BF.20
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
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 |
---|---|---|
Rde-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 Reederite-(Y)
Vitreous
Transparency:
Transparent
Colour:
Yellow to orange-brown
Streak:
White
Hardness:
3 - 3½ on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
{001}
{001}
Fracture:
Conchoidal
Density:
2.91 g/cm3 (Measured) 2.85 g/cm3 (Calculated)
Optical Data of Reederite-(Y)
Type:
Uniaxial (-)
RI values:
nω = 1.548 nε = 1.537
Max Birefringence:
δ = 0.011
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
Pleochroism:
Non-pleochroic
Comments:
Some grains were observed to be biaxial negative with 2V up to 15 deg (type description).
Chemistry of Reederite-(Y)
Mindat Formula:
(Na,Mn)15Y2(CO3)9(FSO3)Cl
Crystallography of Reederite-(Y)
Crystal System:
Hexagonal
Class (H-M):
6 - Trigonal Dipyramidal
Space Group:
P6
Setting:
P6
Cell Parameters:
a = 8.773 Å, c = 10.746 Å
Ratio:
a:c = 1 : 1.225
Unit Cell V:
716.26 ų (Calculated from Unit Cell)
Z:
1
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) |
---|---|---|---|---|---|---|---|
0001759 | Reederite-(Y) | Grice J D, Gault R A, Chao G Y (1995) Reederite -(Y), a new sodium rare-earth mineral with a unique fluorosulfate anion American Mineralogist 80 1059-1064 | 1995 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
6.20 Å | (40) |
4.39 Å | (80) |
3.801 Å | (20) |
2.872 Å | (20) |
2.774 Å | (80) |
2.606 Å | (20) |
2.532 Å | (100) |
2.240 Å | (80) |
2.067 Å | (30) |
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Stage 3a: Earth’s earliest Hadean crust | >4.50 |
9 : Lava/xenolith minerals (hornfels, sanidinite facies) | |
Stage 4b: Highly evolved igneous rocks | >3.0 |
35 : Ultra-alkali and agpaitic igneous rocks |
Type Occurrence of Reederite-(Y)
General Appearance of Type Material:
An inclusion in a vug filled by trona. Irregular tabular to blocky grains up to 2 mm.
Place of Conservation of Type Material:
Canadian Museum of Nature, Ottawa, Ontario, Canada, number 8152 (cotype).
Geological Setting of Type Material:
In a sodalite xenolith in syenite in an alkaline intrusive complex. Probably a late stage hydrothermal mineral.
Associated Minerals at Type Locality:
Synonyms of Reederite-(Y)
Other Language Names for Reederite-(Y)
Russian:Ридерит-(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.25 | Mineevite-(Y) | Na25Ba(Y,Gd,Dy)2(CO3)11(HCO3)4(SO4)2F2Cl |
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 Reederite-(Y)
Not fluorescent.
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 Reederite-(Y)
mindat.org URL:
https://www.mindat.org/min-3381.html
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References for Reederite-(Y)
Localities for Reederite-(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.
Canada (TL) | |
| Grice et al. (1995) |
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