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Haiweeite

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Formula:
Ca(UO2)2[Si5O12(OH)2] · 6H2O
Colour:
Pale yellow, greenish-yellow
Lustre:
Pearly
Hardness:
Specific Gravity:
3.35
Crystal System:
Monoclinic
Name:
Named by T.C. McBurney and Joseph Murdoch in 1959 for the Haiwee Reservoir, California, located near the type locality.
This page provides mineralogical data about Haiweeite.


Hide all sections | Show all sections

Classification of HaiweeiteHide

Approved
First Published:
1959
9.AK.25

9 : SILICATES (Germanates)
A : Nesosilicates
K : Uranyl neso- and polysilicates
53.3.2.2

53 : NESOSILICATES Insular SiO4 Groups and Other Anions or Complex Cations
3 : Insular SiO4 Groups and Other Anions of Complex Cations with (UO2)
14.16.12

14 : Silicates not Containing Aluminum
16 : Silicates of U

Physical Properties of HaiweeiteHide

Pearly
Transparency:
Translucent
Colour:
Pale yellow, greenish-yellow
Streak:
White
Hardness:
3½ on Mohs scale
Cleavage:
Distinct/Good
On {100}
Density:
3.35 g/cm3 (Measured)    4.93 g/cm3 (Calculated)

Optical Data of HaiweeiteHide

Type:
Biaxial (-)
RI values:
nα = 1.560 - 1.571 nβ = 1.575 - 1.580 nγ = 1.578 - 1.582
2V:
Measured: 15° , Calculated: 46° to 50°
Max Birefringence:
δ = 0.018
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
r > v strong
Comments:
Y = pale yellow; Z = colorless. Y = b.

Chemical Properties of HaiweeiteHide

Formula:
Ca(UO2)2[Si5O12(OH)2] · 6H2O
IMA Formula:
Ca(UO2)2Si5O12(OH)2 · 6H2O

Crystallography of HaiweeiteHide

Crystal System:
Monoclinic
Cell Parameters:
a = 15.4 Å, b = 7.05 Å, c = 7.1 Å
β = 107.52°
Ratio:
a:b:c = 2.184 : 1 : 1.007
Unit Cell V:
735.09 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
9.14 (100)
7.05 (40)
4.56 (60)
4.42 (60)
3.54 (40)
3.19 (50)
3.11 (50)

Type Occurrence of HaiweeiteHide

General Appearance of Type Material:
Spherulitic aggregates, or single flakelike grains, on fracture surfaces in granite.

Synonyms of HaiweeiteHide

Other Language Names for HaiweeiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Gypsum14 photos of Haiweeite associated with Gypsum on mindat.org.
Phosphuranylite8 photos of Haiweeite associated with Phosphuranylite on mindat.org.
Fluorite8 photos of Haiweeite associated with Fluorite on mindat.org.
Uranophane6 photos of Haiweeite associated with Uranophane on mindat.org.
Uranophane-β5 photos of Haiweeite associated with Uranophane-β on mindat.org.
Selenite3 photos of Haiweeite associated with Selenite on mindat.org.
Calcite3 photos of Haiweeite associated with Calcite on mindat.org.
Sklodowskite2 photos of Haiweeite associated with Sklodowskite on mindat.org.
Phurcalite1 photo of Haiweeite associated with Phurcalite on mindat.org.
Quartz1 photo of Haiweeite associated with Quartz on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

9.AK.05Soddyite(UO2)2SiO4 · 2H2OOrth.
9.AK.10CuprosklodowskiteCu(UO2)2(SiO3OH]2 · 6H2OTric. 1 : P1
9.AK.10OursiniteCo(UO2)2(SiO3OH)2 · 6H2OOrth. mmm (2/m 2/m 2/m) : Cmca
9.AK.10SklodowskiteMg(UO2)2(SiO3OH)2 · 6H2OMon. 2/m : B2/m
9.AK.15Boltwoodite(K,Na)(UO2)(SiO3OH) · 1.5H2OMon. 2 : P21
9.AK.15KasolitePb(UO2)[SiO4] · H2OMon. 2/m : P21/b
9.AK.15NatroboltwooditeNa(UO2)(SiO3OH) · H2O
9.AK.15Uranophane-βCa(UO2)2(SiO3OH)2 · 5H2OMon.
9.AK.15UranophaneCa(UO2)2(SiO3OH)2 · 5H2OMon. 2 : P21
9.AK.15Beta-UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
9.AK.20Swamboite-(Nd)Nd0.333[(UO2)(SiO3OH)](H2O)∼2.5Mon.
9.AK.25MetahaiweeiteCa(UO2)2Si6O15 · nH2O
9.AK.30WeeksiteK2(UO2)2(Si5O13) · 4H2OOrth.
9.AK.30CoutinhoiteThxBa(1-2x)(UO2)2Si5O13 · (H2O)1+y (0 < x < 0.5 and 0 < y < (2+x))Orth.
9.AK.35UrsiliteMg4(UO2)4(Si2O5)5.5(OH)5 · 13H2OOrth.
9.AK.35MagnioursiliteMg4(UO2)4(Si2O5)5(OH)6 · 20H2O
9.AK.35CalcioursiliteCa4(UO2)4(Si2O5)5(OH)6 · 15H2O
9.AK.40UranosiliteUO3 · 7SiO2Orth.

Related Minerals - Dana Grouping (8th Ed.)Hide

53.3.2.1WeeksiteK2(UO2)2(Si5O13) · 4H2OOrth.
53.3.2.3MetahaiweeiteCa(UO2)2Si6O15 · nH2O

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

14.16.1UranosiliteUO3 · 7SiO2Orth.
14.16.2Coffinite(U4+,Th)(SiO4)1-x(OH)4xTet.
14.16.3Soddyite(UO2)2SiO4 · 2H2OOrth.
14.16.4Swamboite-(Nd)Nd0.333[(UO2)(SiO3OH)](H2O)∼2.5Mon.
14.16.5WeeksiteK2(UO2)2(Si5O13) · 4H2OOrth.
14.16.6Boltwoodite(K,Na)(UO2)(SiO3OH) · 1.5H2OMon. 2 : P21
14.16.7NatroboltwooditeNa(UO2)(SiO3OH) · H2O
14.16.8CuprosklodowskiteCu(UO2)2(SiO3OH]2 · 6H2OTric. 1 : P1
14.16.9SklodowskiteMg(UO2)2(SiO3OH)2 · 6H2OMon. 2/m : B2/m
14.16.10UranophaneCa(UO2)2(SiO3OH)2 · 5H2OMon. 2 : P21
14.16.11Uranophane-βCa(UO2)2(SiO3OH)2 · 5H2OMon.
14.16.13MetahaiweeiteCa(UO2)2Si6O15 · nH2O
14.16.15SteacyiteK0.3(Na,Ca)2ThSi8O20Tet. 4/mmm (4/m 2/m 2/m) : P4/mcc
14.16.16EkaniteCa2ThSi8O20Tet. 4 2 2 : I4 2 2
14.16.17KasolitePb(UO2)[SiO4] · H2OMon. 2/m : P21/b
14.16.18OrlitePb3(UO2)3(Si2O7)2 · 6H2O
14.16.19OursiniteCo(UO2)2(SiO3OH)2 · 6H2OOrth. mmm (2/m 2/m 2/m) : Cmca

Fluorescence of HaiweeiteHide

Weak dull-green

Other InformationHide

Health Risks:
Contains uranium. Wash hands after handling. Do not lick or ingest. Store in uninhabited areas.

References for HaiweeiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
McBurney, T.C. and Murdoch, J. (1959) Haiweeite, a new uranium mineral from California. American Mineralogist: 44: 839-843.
Fleischer, M. (1960) New mineral names. American Mineralogist: 45: 753-756.
International Mineralogical Association (1962) International Mineralogical Association: Commission on new minerals and mineral names. Mineralogical Magazine: 33: 260-263.
de Carmargo, W.G.R. and Svisero, D.P. (1969) Haiweeite, a new occurrence in Brazil. Amercian Mineralogist: 54: 966-968.
Yeremenko, G.K., Il'menov, Ye.S., and Azimi, N.A. (1977) Find of weeksite-group minerals in Afghanistan. Doklady Akademii Nauk SSSR Earth Science Sections: 237: 226-228.
Yeremenko, G.K., Il'menov, Ye.S., and Azimi, N.A. (1977) Find of weeksite-group minerals in Afghanistan [Russian]. Doklady Akademii Nauk SSSR: 237: 1191-1193.
Jambor, J.L. and Roberts, A.C. (1999) New mineral names. American Mineralogist: 84: 193-198.
Burns, P.C. (2001) A new uranyl silicate sheet in the structure of haiweeite and comparison to other uranyl silicates. Canadian Mineralogist: 39: 1153-1160.
Jambor, J.L. and Roberts, A.C. (2002) New mineral names. American Mineralogist: 87: 765-768.
Burns, P.C. (2005) U6+ minerals and inorganic compounds: insights into an expanded structural hierarchy of crystal structures. Canadian Mineralogist: 43: 1839-1894.
Frost, R.L., Cejka, J., Weier, M.L., and Martens, W. (2006) A Raman and infrared spectroscopic study of the uranyl silicates - weeksite, soddyite and haiweeite: Part 2. Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy: 63: 305-312.
Frost, R.L., Cejka, J., Weier, M.L., Martens, W., and Kloprogge, J.T. (2006) A Raman and infrared spectroscopic study of the uranyl silicates - weeksite, soddyite and haiweeite. Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy: 64: 308-315.
Plášil, J., Fejfarová, K., Čejka, J., Dušek, M., Škoda, R., and Sejkora, J. (2013) Revision of the crystal structure and chemical formula of haiweeite, Ca(UO2)2(Si5O12)(OH)2⋅6H2O. American Mineralogist: 98: 718-723.

Internet Links for HaiweeiteHide

Localities for HaiweeiteHide

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 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Austria
 
  • Salzburg
    • Hohe Tauern
      • Gastein valley
        • Naßfeld valley
          • Kreuzkogel massif
            • Radhausberg
A. Strasser: Die Minerale Salzburgs, 1989
Brazil
 
  • Bahia
    • Lagoa Real U province
A.M.D.V. Chaves (2005) Mineralogia e Geoquímica Supergênicas do Urânio - Província Uranífera de Lagoa Real, Caetité-Bahia. Dissertação de Mestrado, Comissão Nacional de Energia Nuclear, 101p. (In portuguese with abstract in english)
  • Minas Gerais
    • Mucuri valley
American Mineralogist: 84: 197-198.; Jambor, J.L. and Roberts, A.C. (2002) New mineral names. American Mineralogist: 87: 765-768.
  • São Paulo
    • São Paulo
American Mineralogist 54:966-969
Fosfatos e Silicatos Secundários de Urânio de Perus, São Paulo - Atencio, Daniel and Hypolito, Raphael - Revista Brasileira de Geociências, março de 1994
Canada
 
  • Saskatchewan
    • Athabasca Basin
ALEXANDRE, P., UVAROVA, Y. & KYSER, T.K. (2012) Origin of uranous and uranil minerals at the Centennial deposit, Athabasca Basin, Northern Saskatchewan, Canada. Canadian Mineralogist, 50, 693-704.
Chile
 
  • Atacama Region
    • Copiapó Province
      • Quebrada San Miguel
A. Molina & M. Dini collections (based on analysis)
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Plzeň Region
      • Planá u Mariánských Lázní (Plan)
Pauliš P., Kopecký S., Černý P. 2007: Uranové minerály České Republiky a jejich naleziště. 1. část. (Kutna Hora, issue 1)
Japan
 
  • Honshu Island
    • Chugoku Region
      • Tottori Prefecture
K. Watanabe (1976) Journal of the Faculty of Science, Shinshu University, 11, 53-113 (in japanese with english summary)
Mexico
 
  • Chihuahua
    • Mun. de Aldama
      • Peña Blanca District
        • Sierra Peña Blanca
EDS analysis
    • Mun. de Aquiles Serdán
      • Santa Eulalia District
        • West Camp
          • Francisco Portillo
Tony Peterson, SEM/EDS
Namibia
 
  • Erongo Region
JAHN, St.; SCHNAITMANN, E.A.; NIEDERMAYR, G. (2010): Spektakuläre Neufunde aus dem Erongo (IV). - MINERALIEN-Welt (5), 60-66.
    • Swakopmund District
      • Arandis
Bezing, L. von, Bode, R. & Jahn, S. (2007): Namibia. Minerals and Localities. Edition Schloss Freudenstein, Bode Verlag, Haltern, 343 pp. (in English); Irene M. Abraham (2009): Geology and spatial distribution of uranium mineralisation in the SK anomaly area, Rossing area, Namibia, Master thesis University of the Witwatersrand.
Spain
 
  • Madrid
Tanago, J. G., Lozano, P. L., Larios, A. , La Iglesia, A. (2012) Stokesite crystals from La Cabrera, Madrid, Spain. Mineralogical Record 43:499-508
Tajikistan
 
  • Region of Republican Subordination
    • Tien Shan Mtn
      • Alai Range (Alayskiy)
http://www.koeln.netsurf.de/~w.steffens/dara.htm
USA (TL)
 
  • California
    • Inyo Co.
      • Coso Mts (Coso Range)
        • Coso District (New Coso District)
McBurney, Thomas Chester & Joseph Murdoch (1959), Haiweeite a new uranium mineral from California: American Mineralogist: 44: 839-843; Outerbridge, W.F., et al (1960), Weeksite, a new uranium silicate from the Thomas Range, Juab County, Utah, American Mineralogist: 45: 39-52; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 517.
  • New Hampshire
    • Grafton Co.
      • Grafton
www.shannonsminerals.com
  • Texas
    • Presidio Co.
R&M 66:3 pp 196-224
Mineral and/or Locality  
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