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Reedmergnerite

A valid IMA mineral species - grandfathered
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About ReedmergneriteHide

Formula:
NaBSi3O8
Colour:
Colourless to yellow-orange, salmon-orange
Lustre:
Vitreous
Hardness:
6 - 6½
Specific Gravity:
2.70 - 2.78
Crystal System:
Triclinic
Member of:
Name:
Named in honor of Frank S. Reed (b. 1894) and John L. Mergner (1894), thin section and polished section technicians at the United States Geological Survey (USGS).
Feldspar Group.

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


Unique IdentifiersHide

Mindat ID:
3382
Long-form identifier:
mindat:1:1:3382:0
GUID
(UUID V4):
fb125733-e240-494f-815a-3598141b29c6

IMA Classification of ReedmergneriteHide

Classification of ReedmergneriteHide

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

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
RmIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of ReedmergneriteHide

Vitreous
Transparency:
Transparent, Translucent
Colour:
Colourless to yellow-orange, salmon-orange
Hardness:
6 - 6½ on Mohs scale
Cleavage:
Perfect
{001}
Density:
2.70 - 2.78 g/cm3 (Measured)    2.779 g/cm3 (Calculated)

Optical Data of ReedmergneriteHide

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

Chemistry of ReedmergneriteHide

Mindat Formula:
NaBSi3O8
Common Impurities:
Ti,Al,Fe,Mg,Ca,Ba,K,F,H2O,P

Crystallography of ReedmergneriteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
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 V:
587.34 ų (Calculated from Unit Cell)
Z:
4
Comment:
Space Group: C1

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0000139ReedmergneriteAppleman D E, Clark J R (1965) Crystal structure of reedmergnerite, a boron albite, and its relation to feldspar crystal chemistry American Mineralogist 50 1827-185019650293
0001439ReedmergneriteFleet M E (1992) Tetrahedral-site occupancies in reedmergnerite and synthetic boron albite (NaBSi3O8) sample from Utah American Mineralogist 77 76-8419920293
0001440ReedmergneriteFleet M E (1992) Tetrahedral-site occupancies in reedmergnerite and synthetic boron albite (NaBSi3O8) sample low boron albite Gb100 American Mineralogist 77 76-8419920293
0001441ReedmergneriteFleet M E (1992) Tetrahedral-site occupancies in reedmergnerite and synthetic boron albite (NaBSi3O8) sample high boron albite Gb87, known as reedmergnerite-high American Mineralogist 77 76-8419920293
0002214ReedmergneriteDowns R T, Yang H, Hazen R M, Finger L W, Prewitt C T (1999) Compressibility mechanisms of alkali feldspars: New data from reedmergnerite Sample from Joseph Smith #1 mine, Duchesne Co., Utah, NMNH 140 American Mineralogist 84 333-34019990293
0002215ReedmergneriteDowns R T, Yang H, Hazen R M, Finger L W, Prewitt C T (1999) Compressibility mechanisms of alkali feldspars: New data from reedmergnerite Sample from Joseph Smith #1 mine, Duchesne Co., Utah, NMNH 140 American Mineralogist 84 333-34019990293
0002216ReedmergneriteDowns R T, Yang H, Hazen R M, Finger L W, Prewitt C T (1999) Compressibility mechanisms of alkali feldspars: New data from reedmergnerite Sample from Joseph Smith #1 mine, Duchesne Co., Utah, NMNH 140 American Mineralogist 84 333-34019990.88293
0002217ReedmergneriteDowns R T, Yang H, Hazen R M, Finger L W, Prewitt C T (1999) Compressibility mechanisms of alkali feldspars: New data from reedmergnerite Sample from Joseph Smith #1 mine, Duchesne Co., Utah, NMNH 140 American Mineralogist 84 333-34019991.89293
0002218ReedmergneriteDowns R T, Yang H, Hazen R M, Finger L W, Prewitt C T (1999) Compressibility mechanisms of alkali feldspars: New data from reedmergnerite Sample from Joseph Smith #1 mine, Duchesne Co., Utah, NMNH 140 American Mineralogist 84 333-34019993293
0002219ReedmergneriteDowns R T, Yang H, Hazen R M, Finger L W, Prewitt C T (1999) Compressibility mechanisms of alkali feldspars: New data from reedmergnerite Sample from Joseph Smith #1 mine, Duchesne Co., Utah, NMNH 140 American Mineralogist 84 333-34019993.64293
0002220ReedmergneriteDowns R T, Yang H, Hazen R M, Finger L W, Prewitt C T (1999) Compressibility mechanisms of alkali feldspars: New data from reedmergnerite Sample from Joseph Smith #1 mine, Duchesne Co., Utah, NMNH 140 American Mineralogist 84 333-34019994.68293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

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Radiation - Copper Kα
Data Set:
Data courtesy of RRUFF project at University of Arizona, used with permission.
Powder Diffraction Data:
d-spacingIntensity
3.037 Å(100)
3.561 Å(90)
3.076 Å(90)
3.225 Å(85)
3.876 Å(65)
2.841 Å(55)
6.076 Å(50)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Near-surface Processes
24 : Authigenic minerals in terrestrial sediments (see also #17)
Stage 4b: Highly evolved igneous rocks>3.0
35 : Ultra-alkali and agpaitic igneous rocks
Stage 10a: Neoproterozoic oxygenation/terrestrial biosphere<0.6
50 : Coal and/or oil shale minerals<0.36

Type Occurrence of ReedmergneriteHide

General Appearance of Type Material:
As stubby prismatic to platy crystals, commonly wedge-shaped
Place of Conservation of Type Material:
National Museum of Natural History, Washington, D.C., USA, 106865.
Geological Setting of Type Material:
Dolomitic shale
Associated Minerals at Type Locality:
Reference:
Milton, C., Axelrod, J.M., Grimaldi, F.S. (1955) New minerals, reedmergnerite (Na2O·B2O3·6SiO2) and eitelite (Na2O·MgO·2CO2) associated with leucosphenite, shortite, searlesite, and crocidolite in the Green River formation, Utah. American Mineralogist: 40: 326-327.

Other Language Names for ReedmergneriteHide

Relationship of Reedmergnerite to other SpeciesHide

Member of:
Other Members of this group:
Alkali FeldsparA subgroup of the Feldspar Group, poor in calcium, and mostly rich in potassium.
BanalsiteNa2BaAl4Si4O16Orth. mm2 : Iba2
Buddingtonite(NH4)(AlSi3O8)Mon. 2 : P21
CelsianBa(Al2Si2O8)Mon. 2/m
CleavelanditeNa(AlSi3O8)Tric.
FilatoviteK(Al,Zn)2(As,Si)2O8Mon. 2/m
HexacelsianBaAl2Si2O8Hex. 6/mmm (6/m 2/m 2/m) : P63/mcm
KokchetaviteK(AlSi3O8)Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
KumdykoliteNa(AlSi3O8)Orth. mmm (2/m 2/m 2/m) : Pnnm
ParacelsianBa(Al2Si2O8)Mon. 2/m : P21/b
Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SlawsoniteSr(Al2Si2O8)Mon. 2/m : P21/b
StronalsiteNa2SrAl4Si4O16Orth.
SvyatoslaviteCa(Al2Si2O8)Mon. 2 : P21
Unnamed (New Ordered Member of the Alkali Feldspar Series)KNa(Si6Al2)O16Mon. m

Common AssociatesHide

Associated Minerals Based on Photo Data:
6 photos of Reedmergnerite associated with Telyushenkoite(Cs,Na,K)Na6[Be2Al3Si15O39]F2
6 photos of Reedmergnerite associated with QuartzSiO2
4 photos of Reedmergnerite associated with ShibkoviteK(◻K)Ca2Zn3[Si12O30]
3 photos of Reedmergnerite associated with Hyalotekite(Ba,Pb,K)4(Ca,Y)2(B,Be)2(Si,B)2Si8O28(F,Cl)
2 photos of Reedmergnerite associated with EpididymiteNa2Be2Si6O15 · H2O
2 photos of Reedmergnerite associated with AegirineNaFe3+Si2O6
2 photos of Reedmergnerite associated with PekoviteSrB2Si2O8
2 photos of Reedmergnerite associated with PectoliteNaCa2Si3O8(OH)
1 photo of Reedmergnerite associated with YusupoviteNa2Zr(Si6O15) · 2.5H2O
1 photo of Reedmergnerite associated with Kentbrooksite(Na,REE)15(Ca,REE)6(Mn2+,Fe2+)3Zr3Nb[Si25O74]F2 · 2H2O

Related Minerals - Strunz-mindat GroupingHide

9.FA.HexacelsianBaAl2Si2O8Hex. 6/mmm (6/m 2/m 2/m) : P63/mcm
9.FA.Wodegongjieite KCa3(Al7Si9)O32Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
9.FA.05KaliophiliteKAlSiO4Trig. 3 : P3
9.FA.05KalsiliteKAlSiO4Hex. 6 2 2 : P63 2 2
9.FA.05NephelineNa3K(Al4Si4O16)Hex. 6 : P63
9.FA.05Panunzite(K,Na)AlSiO4Hex. 6 : P63
9.FA.05TrikalsiliteK2NaAl3(SiO4)3Hex. 6 : P63
9.FA.05Yoshiokaite(Ca,Na)[Al(Al,Si)O4]Trig. 3 : P3
9.FA.05CarnegieiteNaAlSiO4Tric.
9.FA.05 vaGermanate-nepheline(Na,K)AlGeO4
9.FA.05MegakalsiliteKAlSiO4Hex. 6 : P63
9.FA.05TrinephelineNaAlSiO4 Hex. 6 : P61
9.FA.05Davidsmithite(Ca,◻)2Na6Al8Si8O32Hex. 6 : P63
9.FA.10MalinkoiteNaBSiO4Hex. 6 : P63
9.FA.15VirgiliteLiAlSi2O6Hex. 6 2 2 : P62 2 2
9.FA.25LisitsyniteKBSi2O6Orth. 2 2 2 : P2 2 2
9.FA.30Buddingtonite(NH4)(AlSi3O8)Mon. 2 : P21
9.FA.30CelsianBa(Al2Si2O8)Mon. 2/m
9.FA.30MicroclineK(AlSi3O8)Tric. 1
9.FA.30OrthoclaseK(AlSi3O8)Mon. 2/m : B2/m
9.FA.30SanidineK(AlSi3O8)Mon. 2/m : B2/m
9.FA.30RubiclineRb(AlSi3O8)Mon. 2/m : B2/m
9.FA.30 vaGermanate-celsianBaAl2Ge2O8
9.FA.30MonalbiteNaAlSi3O8Mon. 2/m : B2/m
9.FA.30FerrisanidineK[Fe3+Si3O8]Mon. 2/m : B2/m
9.FA.35AlbiteNa(AlSi3O8)Tric. 1
9.FA.35AnorthiteCa(Al2Si2O8)Tric. 1 : P1
9.FA.40ParacelsianBa(Al2Si2O8)Mon. 2/m : P21/b
9.FA.45SvyatoslaviteCa(Al2Si2O8)Mon. 2 : P21
9.FA.45KumdykoliteNa(AlSi3O8)Orth. mmm (2/m 2/m 2/m) : Pnnm
9.FA.50SlawsoniteSr(Al2Si2O8)Mon. 2/m : P21/b
9.FA.55LisetiteCaNa2Al4Si4O16Orth. mm2
9.FA.60BanalsiteNa2BaAl4Si4O16Orth. mm2 : Iba2
9.FA.60StronalsiteNa2SrAl4Si4O16Orth.
9.FA.65DanburiteCaB2Si2O8Orth. mmm (2/m 2/m 2/m)
9.FA.65MaleeviteBaB2Si2O8Orth. mmm (2/m 2/m 2/m) : Pnma
9.FA.65PekoviteSrB2Si2O8Orth. mmm (2/m 2/m 2/m) : Pnma
9.FA.70StöffleriteCaAl2Si2O8Tet. 4/m : I4/m
9.FA.70Lingunite(Na,Ca)AlSi3O8Tet. 4/m : I4/m
9.FA.70LiebermanniteKAlSi3O8Tet. 4/m : I4/m
9.FA.75KokchetaviteK(AlSi3O8)Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc

Other InformationHide

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 ReedmergneriteHide

References for ReedmergneriteHide

Reference List:

Localities for ReedmergneriteHide

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.

Locality ListHide

- 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.
China
 
  • Xinjiang
    • Yili Hasake Autonomous Prefecture (Ili Kazakh Autonomous Prefecture)
      • Tacheng Prefecture (Tarbaghatay Prefecture)
        • Junggar Basin
ZHANG et al. (2018) +2 other references
Pakistan
 
  • Khyber Pakhtunkhwa Province
    • Mohmand District
      • Warsak Intrusions
Weerth et al. (2016)
Russia
 
  • Murmansk Oblast
    • Lovozersky District
[World of Stones 95:5-6
Pakhomovsky et al. (2014)
Tajikistan
 
  • Districts of Republican Subordination
Grew et al. (1994) +5 other references
USA
 
Tank (1972) +1 other reference
  • New Mexico
    • Otero County
      • Cornudas Mountains
  • Utah
    • Duchesne County
Milton et al. (1960) +1 other reference
Bullock (1981)
Milton et al. (1960)
Pabst et al. (1972)
    • Uintah County
      • Uteland Knoll Mining District (Ouray Mining District)
        • Ouray
Milton (1977)
 
Mineral and/or Locality  
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