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Vanderheydenite

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Formula:
Zn6(PO4)2(SO4)(OH)4·7H2O
Hardness:
3
Specific Gravity:
3.06 (Calculated)
Crystal System:
Monoclinic
New structure type.


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Classification of VanderheydeniteHide

Approved
Approval Year:
2014
First Published:
2018

Physical Properties of VanderheydeniteHide

Hardness:
Cleavage:
None Observed
Density:
3.06 g/cm3 (Calculated)
Comment:
Calculated density is 3.12 g/cm-3 from the empirical formula and 3.06 g/cm-3 from the ideal formula.

Optical Data of VanderheydeniteHide

Type:
Biaxial (-)
RI values:
nα = 1.565(4) nβ = 1.580(4) nγ = 1.582(4)
2V:
Calculated: 39.8°
Max Birefringence:
δ = 0.017
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate

Chemical Properties of VanderheydeniteHide

Formula:
Zn6(PO4)2(SO4)(OH)4·7H2O
IMA Formula:
Zn6(PO4)2(SO4)(OH)4 · 7H2O

Crystallography of VanderheydeniteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 6.2040(12) Å, b = 19.619(4) Å, c = 7.7821(16) Å
β = 90.67(3)°
Ratio:
a:b:c = 0.316 : 1 : 0.397
Unit Cell V:
947.1 ų
Morphology:
Pseudohexagonal blades up to 0.4 mm in length, flattened on {100} and exhibiting the forms {100}, {010}, and {021}.
Comment:
Space-group setting P21/n.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
9.826(66)
7.296(14)
6.134(100)
4.368(10)
3.368(15)
3.069(15)
2.778(10)
2.648(10)
Comments:
From Type Description.

Type Occurrence of VanderheydeniteHide

General Appearance of Type Material:
Aggregates of colourless crystals up to 0.5 mm across in voids of a sphalerite–galena matrix
Place of Conservation of Type Material:
Type material is deposited in the mineralogical collections of the South Australian Museum, Adelaide, South Australia, Australia, registration number G32512
Reference:
Elliott, P. and Kolitsch, U. (2018) Description and crystal structure of vanderheydenite, Zn6(PO4)2(SO4)(OH)4·7H2O, a new mineral from Broken Hill, New South Wales, Australia. European Journal of Mineralogy: 30: 835-840.

Synonyms of VanderheydeniteHide

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.

References for VanderheydeniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Elliott, P. and Kolitsch, U. (2015) Vanderheydenite, IMA 2014-076. CNMNC Newsletter No. 23, February 2015, page 56. Mineralogical Magazine: 79: 51-58.
Elliott, P. and Kolitsch, U. (2018) Description and crystal structure of vanderheydenite, Zn6(PO4)2(SO4)(OH)4·7H2O, a new mineral from Broken Hill, New South Wales, Australia. European Journal of Mineralogy: 30: 835-840.

Internet Links for VanderheydeniteHide

Localities for VanderheydeniteHide

ⓘ - 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.
Australia (TL)
 
  • New South Wales
    • Yancowinna Co.
      • Broken Hill district
        • Broken Hill
Elliott, P. and Kolitsch, U. (2015) Vanderheydenite, IMA 2014-076. CNMNC Newsletter No. 23, February 2015, page 56; Mineralogical Magazine, 79, 51-58; Elliott, P. and Kolitsch, U. (2018): Description and crystal structure of vanderheydenite, Zn6(PO4)2(SO4)(OH)4·7H2O, a new mineral from Broken Hill, New South Wales, Australia. Eur. J. Mineral. 30, 835-840.
Mineral and/or Locality  
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