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Wawayandaite

A valid IMA mineral species
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04749650017057890505872.jpg
Wawayandaite, etc.

Franklin Mine, Franklin, Sussex County, New Jersey, USA
03573280015859369998687.jpg
Wawayandaite

Franklin Mine, Franklin, Sussex County, New Jersey, USA
03651980014977320667199.jpg
Wawayandaite, etc.

Franklin Mine, Franklin, Sussex County, New Jersey, USA
07898860014977634124680.jpg
Wawayandaite

Franklin Mine, Franklin, Sussex County, New Jersey, USA
02532040014948868577824.jpg
Wawayandaite, etc.

Franklin Mine, Franklin, Sussex County, New Jersey, USA
00347570014947427254673.jpg
Wawayandaite

Franklin Mine, Franklin, Sussex County, New Jersey, USA
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About WawayandaiteHide

Formula:
Ca6Mn2BBe9Si6O23(OH,Cl)15
Colour:
Colourless to white
Lustre:
Pearly, Dull
Hardness:
1
Specific Gravity:
3.0
Crystal System:
Monoclinic
Name:
Named in 1990 by Pete J. Dunn, Donald Ralph Peacor, Joel Denison Grice, Frederick John Wicks, and Peter H. Chi from the language of the early inhabitants of the discovery area (Franklin, NJ), the Lenni Lenape Indians, "wawayanda" meaning many or several windings, in allusion to the grossly curved and winding habit of the mineral's crystals.
Only a very few specimens of this chemically unusual species are known.





Unique IdentifiersHide

Mindat ID:
4251
Long-form identifier:
mindat:1:1:4251:8
GUID
(UUID V4):
9794092d-cf37-4058-8fb1-53702d362352

IMA Classification of WawayandaiteHide

Classification of WawayandaiteHide

Strunz-mindat (2024):
9.HA.20

9 : SILICATES (Germanates)
H : Unclassified silicates
A : With Alkali and Alkali-earth Elements
Dana 8th ed.:
78.7.19.1

78 : Unclassified Silicates
7 :
Hey's CIM Ref.:
17.5.38

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

Physical Properties of WawayandaiteHide

Lustre:
Pearly, Dull
Transparency:
Transparent, Translucent, Opaque
Colour:
Colourless to white
Streak:
white
Hardness:
1 on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
{100}
Density:
3.0 g/cm3 (Measured)    2.98 g/cm3 (Calculated)

Optical Data of WawayandaiteHide

Type:
Biaxial (-)
RI values:
nα = 1.619 nβ = 1.631(1) nγ = 1.641(1)
2V:
Measured: 85° , Calculated: 84°
Max Birefringence:
δ = 0.022
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r < v strong

Chemistry of WawayandaiteHide

Mindat Formula:
Ca6Mn2BBe9Si6O23(OH,Cl)15
Elements listed:
B, Be, Ca, Cl, H, Mn, O, Si - search for minerals with similar chemistry
Common Impurities:
Zn,Mg,H2O

Crystallography of WawayandaiteHide

Crystal System:
Monoclinic
Cell Parameters:
a = 15.59(2) Å, b = 4.87(1) Å, c = 18.69(4) Å
β = 101.84(15)°
Ratio:
a:b:c = 3.201 : 1 : 3.838
Unit Cell V:
1,388.82 ų (Calculated from Unit Cell)
Z:
2
Twinning:
On {100}, probably universal.
Comment:
Point Group: 2/m or m:; Space Group: P 2/c or Pc:

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.157 Å(100)
15.1 Å(90)
3.001 Å(70)
2.626 Å(70)
2.718 Å(60)
2.249 Å(50)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
High-𝑇 alteration and/or metamorphism
32 : Ba/Mn/Pb/Zn deposits, including metamorphic deposits

Type Occurrence of WawayandaiteHide

Type Locality:
ⓘ Franklin Mine, Franklin, Sussex County, New Jersey, USA
Place of Conservation of Type Material:
National Museum of Natural History, Washington, D.C., USA, R5869, 93391;
Royal Ontario Museum, Toronto, Canada, M44227.
Geological Setting of Type Material:
Secondary veinlets in a metamorphosed Zn-Fe-Mn orebody.
Associated Minerals at Type Locality:
WillemiteFriedelite
Reference:
Dunn, P.J., Peacor, D.R., Grice, J.D., Wicks, F.J., Chi, P.H. (1990) Wawayandaite, a new calcium manganese beryllium boron silicate from Franklin, New Jersey. American Mineralogist: 75: 405-408.
Download:
https://rruff.info/rruff_1.0/uploads/AM75_405.pdf

Synonyms of WawayandaiteHide

Other Language Names for WawayandaiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
2 photos of Wawayandaite associated with FriedeliteMn2+8Si6O15(OH,Cl)10
1 photo of Wawayandaite associated with CahniteCa2[B(OH)4](AsO4)
1 photo of Wawayandaite associated with FrankliniteZn2+Fe3+2O4
1 photo of Wawayandaite associated with WillemiteZn2SiO4

Related Minerals - Strunz-mindat GroupingHide

9.HA.QeltiteCa3TiSi2(Fe3+2Si)O14Trig. 3 2 : P3 2 1
9.HA.Kalyuzhnyite-(Ce)NaKCaSrCeTi(Si8O21)OF(H2O)3Mon. 2/m : P2/b
9.HA.ShinichengiteCa5[BSi2O7(OH)2]2 · 6H2OTric. 1 : P1
9.HA.MoragiteCa3TiSi2(Al2Si)O14Trig. 3 2 : P3 2 1
9.HA.05ErtixiiteNa2Si4O9Iso.
9.HA.10KenyaiteNa2Si22O41(OH)8 · 6H2OMon.
9.HA.25MagbasiteKBaFe3+Mg7Si8O22(OH)2F6Orth. mmm (2/m 2/m 2/m) : Cmma
9.HA.35DemagistrisiteBaCa2Mn3+4(Si3O10)(Si2O7)(OH)4 · 3H2OOrth. mm2 : Amm2
9.HA.37DonwilhelmsiteCaAl4Si2O11Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
9.HA.40IgumnoviteCa3Al2[SiO4]2[◻Cl4]Iso.
9.HA.40KasatkiniteBa2Ca8B5Si8O32(OH)3 · 6H2O Mon.
9.HA.42PaqueiteCa3TiSi2(Al,Ti,Si)3O14Trig. 3 2 : P3 2 1
9.HA.45RippiteK2(Nb,Ti)2(Si4O12)O(O,F)Tet.
9.HA.47ZagamiiteCaAl2Si3.5O11Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
9.HA.50α-CarnegieiteNaAlSiO4
9.HA.50RudenkoiteSr3(Al3.5Si3.5)O10(OH,O)8Cl2 · H2OMon.
9.HA.52Atheriastitenear Ca5MgFeAl6Si8O32 · 5H2O
9.HA.55Balvraidite
9.HA.55FoshallasiteCa3[Si2O7] · 3H2O(?)
9.HA.57BhreckiteCa, Mg, Fe, Si, O, H
9.HA.60Bravaisite
9.HA.60NagelschmidtiteCa7(SiO4)2(PO4)2Hex. 6 : P61
9.HA.65Caryochroite(Na,Sr)3(Fe3+,Mg)10[Ti2Si12O37] · (H2O,O,OH)17Mon. 2/m
9.HA.70JuaniteCa10Mg4Al2Si11O39 · 4H2O or nearOrth.
9.HA.75TacharaniteCa12Al2Si18O33 (OH)36Mon.
9.HA.80OyeliteCa10Si8B2O29 · 12.5H2OTric. 1 : P1
9.HA.85DenisoviteK14+x(Ca,Na,Mn,Fe)48[Si60O162]F16(Ox,OH4-x) · 2H2OMon.
9.HA.90TiettaiteK4Na12Fe3+Si16O41(OH)4 · 2H2OOrth. mmm (2/m 2/m 2/m) : Cmcm

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 WawayandaiteHide

References for WawayandaiteHide

Localities for WawayandaiteHide

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.
USA (TL)
 
  • New Jersey
    • Sussex County
      • Franklin
Dunn et al. (1990) +1 other reference
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