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Reederite-(Y)

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Dr. Richard J. Reeder (c. 2009)
Formula:
(Na,Mn)15Y2(CO3)9(FSO3)Cl
System:
Hexagonal
Colour:
Yellow to orange-brown
Lustre:
Vitreous
Hardness:
3 - 3½
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.
Presently, the only known mineral with a fluorosulphate (FSO3)- anion.

Classification of Reederite-(Y)

Approved
Approval Year:
1994
5/C.07-200
5.BF.20

5 : CARBONATES (NITRATES)
B : Carbonates with additional anions, without H2O
F : With (Cl), SO4, PO4, TeO3
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Type Occurrence of Reederite-(Y)

Physical Properties of Reederite-(Y)

Vitreous
Colour:
Yellow to orange-brown
Streak:
White
Hardness (Mohs):
3 - 3½

Crystallography of Reederite-(Y)

Crystal System:
Hexagonal
Class (H-M):
6 - Trigonal Dipyramidal
Space Group:
P6
Space Group Setting:
P6
Cell Parameters:
a = 8.773Å, c = 10.746Å
Ratio:
a:c = 1 : 1.225
Unit Cell Volume:
V 716.26 ų (Calculated from Unit Cell)
Z:
1

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.
Surface Relief:
Low

Chemical Properties of Reederite-(Y)

Formula:
(Na,Mn)15Y2(CO3)9(FSO3)Cl
Essential elements:
All elements listed in formula:

Relationship of Reederite-(Y) to other Species

5.BF.05FerrotychiteNa6(Fe,Mn,Mg)2(CO3)4(SO4)
5.BF.05ManganotychiteNa6Mn2(CO3)4(SO4)
5.BF.05NorthupiteNa3Mg(CO3)2Cl
5.BF.05TychiteNa6Mg2(CO3)4(SO4)
5.BF.10BonshtedtiteNa3Fe2+(CO3)(PO4)
5.BF.10BradleyiteNa3Mg(CO3)(PO4)
5.BF.10CrawforditeNa3Sr(CO3)(PO4)
5.BF.10SidorenkiteNa3Mn2+(CO3)(PO4)
5.BF.15Daqingshanite-(Ce)(Sr,Ca,Ba)3(Ce,La)(CO3)3-x(PO4)(OH,F)2x
5.BF.25Mineevite-(Y)Na25Ba(Y,Gd,Dy)2(CO3)11(HCO3)4(SO4)2F2Cl
5.BF.30BrianyoungiteZn3(CO3,SO4)(OH)4
5.BF.35PhilolithitePb12Mn2+(Mg,Mn2+)2(Mn2+,Mg)4(CO3)4(SO4)O6(OH)12Cl4
5.BF.40LeadhillitePb4(CO3)2(SO4)(OH)2
5.BF.40MacphersonitePb4(CO3)2(SO4)(OH)2
5.BF.40SusannitePb4(CO3)2(SO4)(OH)2

Other Names for Reederite-(Y)

Name in Other Languages:

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.

References for Reederite-(Y)

Reference List:
Grice J D, Gault R A, Chao G Y (1995) Reederite-(Y), a new sodium rare-earth carbonate mineral with a unique fluorosulfate anion, American Mineralogist 80, 1059-1064.

Mineralogical Record: 27: 304-305.

Internet Links for Reederite-(Y)

Localities for Reederite-(Y)

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Canada (TL)
 
  • Québec
    • Montérégie
      • La Vallée-du-Richelieu RCM
        • Mont Saint-Hilaire
GRICE, J.D., GAULT, R.A., and CHAO,G.Y. (1995) Reederite (Y), a new sodium rare earth carbonate mineral with a unique fluorosulfate anion. American Mineralogist, 80, 1059 1064.
Mineral and/or Locality  
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