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Reedmergnerite

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Formula:
NaBSi3O8
System:
Triclinic
Colour:
Colourless to ...
Lustre:
Vitreous
Hardness:
6 - 6½
Member of:
Name:
Named after Frank S. Reed and John L. Mergner, thin section and polished section technicians at the USGS.
Feldspar Group.

A synthetic K analogue is known (Krzhizhanovskaya et al., 2010, IMA2010, Budapest).


Classification of Reedmergnerite

Approved, 'Grandfathered' (first described prior to 1959)
9.FA.35

9 : SILICATES (Germanates)
F : Tektosilicates without zeolitic H2O
A : Tektosilicates without additional non-tetrahedral anions
76.1.4.1

76 : TECTOSILICATES Al-Si Framework
1 : Al-Si Framework with Al-Si frameworks
17.5.2

17 : Silicates Containing other Anions
5 : Borosilicates

Physical Properties of Reedmergnerite

Vitreous
Diaphaneity (Transparency):
Transparent, Translucent
Colour:
Colourless to yellow-orange, salmon-orange
Hardness (Mohs):
6 - 6½

Optical Data of Reedmergnerite

Type:
Biaxial (-)
RI values:
nα = 1.554 nβ = 1.565 nγ = 1.573
2V:
Measured: 80° , Calculated: 80°
Max Birefringence:
δ = 0.019
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
none

Chemical Properties of Reedmergnerite

Formula:
NaBSi3O8
Idealised Formula:
Na[BSi3O8]
Elements listed in formula:
Common Impurities:
Ti,Al,Fe,Mg,Ca,Ba,K,F,H2O,P

Crystallography of Reedmergnerite

Crystal System:
Triclinic
Cell Parameters:
a = 7.83 Å, b = 12.36 Å, c = 6.8 Å
α = 93.31°, β = 116.35°, γ = 92.06°
Ratio:
a:b:c = 0.633 : 1 : 0.55
Unit Cell Volume:
V 587.34 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
Image Loading

Radiation - Copper Kα
Data Set:
Data courtesy of RRUFF project at University of Arizona, used with permission.

Type Occurrence of Reedmergnerite

Relationship of Reedmergnerite to other Species

Member of:
Other Members of Group:
AlbiteNa(AlSi3O8)
AmazoniteK(AlSi3O8)
Andesine(Na,Ca)[Al(Si,Al)Si2O8]
AnorthiteCa(Al2Si2O8)
Anorthoclase(Na,K)AlSi3O8
BanalsiteNa2BaAl4Si4O16
Buddingtonite(NH4)(AlSi3)O8
Bytownite(Ca,Na)[Al(Al,Si)Si2O8]
CelsianBa(Al2Si2O8)
DmisteinbergiteCa(Al2Si2O8)
FilatoviteK(Al,Zn)2(As,Si)2O8
HexacelsianBaAl2Si2O8
Hyalophane(K,Ba)[Al(Si,Al)Si2O8]
KokchetaviteK(AlSi3O8)
KumdykoliteNa(AlSi3O8)
Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
MicroclineK(AlSi3O8)
Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
OrthoclaseK(AlSi3O8)
ParacelsianBa(Al2Si2O8)
RubiclineRb(AlSi3O8)
SanidineK(AlSi3O8)
SlawsoniteSr(Al2Si2O8)
StronalsiteNa2SrAl4Si4O16
SunstoneA variety of feldspar (microcline or oligoclase) that has schiller, commonly with an orange/brown background color, ...
SvyatoslaviteCa(Al2Si2O8)
9.FA.05KaliophiliteKAlSiO4
9.FA.05KalsiliteKAlSiO4
9.FA.05NephelineNaAlSiO4
9.FA.05PanunziteK3Na(AlSiO4)4
9.FA.05TrikalsiliteK2NaAl3(SiO4)3
9.FA.05YoshiokaiteCa1-x(Al,Si)2O4
9.FA.05MegakalsiliteKAlSiO4
9.FA.10MalinkoiteNaBSiO4
9.FA.15VirgiliteLiAlSi2O6
9.FA.25LisitsyniteKBSi2O6
9.FA.30AdulariaKAlSi3O8
9.FA.30Anorthoclase(Na,K)AlSi3O8
9.FA.30Buddingtonite(NH4)AlSi3O8
9.FA.30CelsianBaAl2Si2O8
9.FA.30Hyalophane(K,Ba)(Al,Si)4O8
9.FA.30MicroclineKAlSi3O8
9.FA.30OrthoclaseKAlSi3O8
9.FA.30SanidineKAlSi3O8
9.FA.30RubiclineRbAlSi3O8
9.FA.30MonalbiteNaAlSi3O8
9.FA.35AlbiteNaAlSi3O8
9.FA.35Andesine(Na,Ca)[Al(Si,Al)Si2O8]
9.FA.35AnorthiteCaAl2Si2O8
9.FA.35Bytownite(Ca,Na)[Al(Al,Si)Si2O8]
9.FA.35Labradorite(Ca,Na)[Al(Al,Si)Si2O8]
9.FA.35Oligoclase(Na,Ca)[Al(Si,Al)Si2O8]
9.FA.40ParacelsianBaAl2Si2O8
9.FA.45SvyatoslaviteCaAl2Si2O8
9.FA.45KumdykoliteNaAlSi3O8
9.FA.50SlawsoniteSrAl2Si2O8
9.FA.55LisetiteNa2CaAl4(SiO4)4
9.FA.60BanalsiteNa2BaAl4Si4O16
9.FA.60StronalsiteNa2SrAl4Si4O16
9.FA.65DanburiteCaB2Si2O8
9.FA.65MaleeviteBaB2Si2O8
9.FA.65PekoviteSrB2Si2O8
9.FA.70LinguniteNaAlSi3O8
9.FA.75KokchetaviteKAlSi3O8
17.5.1ManandoniteLi2Al4(Si2AlB)O10(OH)8
17.5.3SearlesiteNaBSi2O5(OH)2
17.5.4OleniteNaAl3Al6(Si6O18)(BO3)3(O3)OH
17.5.5ElbaiteNa(Al1.5Li1.5)Al6(Si6O18)(BO3)3(OH)3OH
17.5.6KalborsiteK6Al4BSi6O20(OH)4Cl
17.5.7BoromuscoviteKAl2(Si3B)O10(OH)2
17.5.8PoudretteiteKNa2(B3Si12)O30
17.5.9LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
17.5.10DatoliteCaB(SiO4)(OH)
17.5.11DanburiteCaB2Si2O8
17.5.12HowliteCa2B5SiO9(OH)5
17.5.13BakeriteCa4(H5B5Si3O20)
17.5.14OyeliteCa10B2Si8O29 · 12H2O
17.5.15Kornerupine(Mg,Fe2+,Al,◻)10(Si,Al,B)5O21(OH,F)
17.5.16HarkeriteCa12Mg4Al(SiO4)4(BO3)3(CO3)5 · H2O
17.5.17SerendibiteCa4(Mg6Al6)O4[Si6B3Al3O36]
17.5.18Stillwellite-(Ce)CeBSiO5
17.5.19Tadzhikite-(Ce)
17.5.20Melanocerite-(Ce)Ce5(SiO4,BO4)3(OH,O)
17.5.21Okanoganite-(Y)(Y,REE,Ca,Na,Th)16(Fe3+,Ti)(Si,B,P)10(O,OH)38F10
17.5.22Tritomite-(Ce)Ce5(SiO4,BO4)3(OH,O)
17.5.23Tritomite-(Y)Y5(SiO4,BO4)3(O,OH,F)
17.5.24Cappelenite-(Y)BaY6B6Si3O24F2
17.5.25DumortieriteAlAl6BSi3O18
17.5.26Holtite(Ta0.60.4)Al6BSi3O18
17.5.27DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3OH
17.5.28 FerridraviteNaFe33+(Mg2Fe43+)(Si6O18)(BO3)3(OH)3O
17.5.29Axinite-(Mg)Ca4Mg2Al4[B2Si8O30](OH)2
17.5.30UviteCa(Mg3)MgAl5(Si6O18)(BO3)3(OH)3(F/OH)
17.5.31GarrelsiteNaBa3B7Si2O16(OH)4
17.5.32TienshaniteK(Na,K,◻)9Ca2Ba6Mn62+Ti6B12Si36O114(O,OH,F)11
17.5.33LeucospheniteNa4BaTi2B2Si10O30
17.5.34TaramelliteBa4(Fe3+,Ti)4O2[B2Si8O27]Clx; x = 0 to 1
17.5.35TitantaramelliteBa4(Ti,Fe3+,Mg)4(O,OH)2[B2Si8O27]Clx
17.5.36NagashimaliteBa4(V3+,Ti)4(O,OH)2[B2Si8O27]Cl
17.5.37Chromium-draviteNa(Mg3)Cr63+(Si6O18)(BO3)3(OH)3(OH)
17.5.38WawayandaiteCa6Be9Mn22+BSi6O23(OH,Cl)15
17.5.39WerdingiteMg2Al14Si4B4O37
17.5.40Axinite-(Mn)Ca4Mn22+Al4[B2Si8O30](OH)2
17.5.41Axinite
17.5.42TinzeniteCa2Mn42+Al4[B2Si8O30](OH)2
17.5.44SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3OH
17.5.45Fluor-buergeriteNaFe33+Al6(Si6O18)(BO3)3O3F
17.5.46FeruviteCaFe32+(Al5Mg)(Si6O18)(BO3)3(OH)3OH
17.5.47Axinite-(Fe)Ca4Fe22+Al4[B2Si8O30](OH)2
17.5.48HomiliteCa2Fe2+B2(SiO4)2O2
17.5.49GrandidieriteMgAl3O2(BO3)SiO4
17.5.50Hyalotekite(Ba,Pb,K)4(Ca,Y)2(B,Be)2(Si,B)2Si8O28F
17.5.51Hellandite-(Y)(Ca,REE)4Y2Al(Be,Li)2-xB4Si4O22(OH)2

Other Names for Reedmergnerite

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 Reedmergnerite

Reference List:
American Mineralogist (1960): 45: 188-199.

Fleet, M.E. (1992) Tetrahedral-site occupancies in reedmergnerite and synthetic boron albite (NaBSi3O8). American Mineralogist (1992): 77: 76-84.

Hackwell, T.P. and Angel, R.J. (1992), The comparative compressibility of reedmergnerite, danburite and their aluminum analogs. European Journal of Mineralogy: 4: 1221-1227.

European Journal of Mineralogy (1993): 5: 971.

Ufer, M. and Schreyer, W. (1996) Syntheses und Hochdruckstabilität des 'Bor-Albits' Reedmergnerite. Berichte Deuitschen Mineral Gesell, Beiheft z European Journal of Mineralogy: 8(1): 292.

Grew, E.S., and Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).

Internet Links for Reedmergnerite

mindat.org URL:
https://www.mindat.org/min-3382.html
Please feel free to link to this page.

Localities for Reedmergnerite

This 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.
Pakistan
 
  • Federally Administered Tribal Areas (FATA)
    • Mohmand Agency
      • Warsak (Warzak)
Weerth, A. & Weiß, S. (2016): Neues aus der Grenzregion Pakistan/Afghanistan. Lapis, 41 (10), 30-39 (in German).
Russia
 
  • Northern Region
    • Murmanskaja Oblast'
      • Kola Peninsula
        • Lovozero Massif
[World of Stones 95:5-6, p64]
Pakhomovsky, Y. A., Ivanyuk, G. Y., & Yakovenchuk, V. N. (2014). Loparite-(Ce) in rocks of the Lovozero layered complex at Mt. Karnasurt and Mt. Kedykvyrpakhk. Geology of Ore Deposits, 56(8), 685-698.
Tajikistan
 
  • Region of Republican Subordination
    • Tien Shan Mtn
      • Alai Range (Alayskiy)
Canadian Mineralogist 42:107-119 (2004); Pautov L.A., Agakhanov A.A., Sokolova E.V., Hawthorne F., Karpenko V.Yu. (2011) Byzantievite, Ba5(Ca,REE,Y)22(Ti,Nb)18(SiO4)4[(PO4),(SiO4)]4(BO3)9O21[(OH),F]43(H2O)1.5, a new mineral. New Data on Minerals 46:5-12; Agakhanov A.A., Pautov L.A., Karpenko V.Yu., Bekenova G.K., Uvarova Y.A. (2011) Orlovite, KLi2 TiSi4 O11F, a new mineral of the mica group New Mineral Data 46:13-19; Agakhanov, A.A., Pautov, L.A., Sokolova, E., Hawthorne, F.C., Karpenko, V.Yu., Siidra, O.I., Muftakhov, V.A. (2016): Odigitriaite, CsNa5Ca5[Si14B2O38]F2, a new cesium borosilicate mineral from the Darai-Pioz alkaline massif, Tajikistan: Description and crystal structure. Mineralogical Magazine, 80, (in press).
USA
 
  • New Mexico
    • Otero Co.
      • Cornudas Mts
  • Utah
    • Duchesne Co.
Am Min 45:188-199; Am Min 58:211-217
UGMS Bull 117 Minerals and Mineral Localities of Utah
Am Min 45:188-199
American Mineralogist (1972) Vol. 57, pp. 1801-1822
    • Uintah Co.
      • Uteland Knoll District (Ouray District)
        • Ouray
Min Rec 8:5 p369
Mineral and/or Locality  
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