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Nizamoffite

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About NizamoffiteHide

Formula:
Mn2+Zn2(PO4)2(H2O)4
Colour:
colorless
Lustre:
Vitreous
Hardness:
Specific Gravity:
3.00
Crystal System:
Orthorhombic
Member of:
Name:
In honor of James W. Nizamoff (b. 1971) in recognition of his research on pegmatite mineralogy in general, and especially on the phosphate mineralogy of the Palermo pegmatites at North Groton, New Hampshire. J.W. Nizamoff is one of the discoverers of the new mineral and provided the specimens used for its characterization.
Mn analogue of hopeite.


Classification of NizamoffiteHide

Approved

Physical Properties of NizamoffiteHide

Vitreous
Transparency:
Transparent
Colour:
colorless
Hardness:
3½ on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
perfect on {010}, good on {100}, and fair on {001}.
Fracture:
Irregular/Uneven
Density:
3.00(1) g/cm3 (Measured)    2.961 g/cm3 (Calculated)

Optical Data of NizamoffiteHide

Type:
Biaxial (-)
RI values:
nα = 1.580 nβ = 1.590 nγ = 1.591
2V:
Measured: 28° (1), Calculated: 35°
Max Birefringence:
δ = 0.011
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
strong dispersion, r < v
Pleochroism:
Non-pleochroic

Chemical Properties of NizamoffiteHide

Formula:
Mn2+Zn2(PO4)2(H2O)4

Crystallography of NizamoffiteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pbcm
Cell Parameters:
a = 10.6530 Å, b = 18.4778 Å, c = 5.0583 Å
Ratio:
a:b:c = 0.577 : 1 : 0.274
Unit Cell V:
995.70 ų (Calculated from Unit Cell)
Z:
4
Comment:
Space group Pnma

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
9.27(71)
4.62(37)
4.43(24)
3.424(52)
2.873(100)
2.644(36)
2.540(33)
1.953(36)
Comments:
From Type Description.

Type Occurrence of NizamoffiteHide

General Appearance of Type Material:
prisms up to 1 mm in length and 0.5 mm in diameter. The prisms are elongated and lightly striated parallel to [001]
Place of Conservation of Type Material:
Natural History Museum of Los Angeles County, Los Angeles, California, USA, catalogue numbers 64009 and 64010
Geological Setting of Type Material:
pegmatite secondary alteration of primary triphylite and associated sphalerite
Associated Minerals at Type Locality:

Synonyms of NizamoffiteHide

Relationship of Nizamoffite to other SpeciesHide

Member of:
Other Members of this group:
ArsenohopeiteZn3(AsO4)2 · 4H2OOrth. mmm (2/m 2/m 2/m) : Pnma
DavidlloyditeZn3(AsO4)2·4H2O Tric. 1 : P1
HopeiteZn3(PO4)2 · 4H2OOrth. mmm (2/m 2/m 2/m) : Pnma
ParahopeiteZn3(PO4)2 · 4H2OTric. 1 : P1
Unnamed (Mg-analogue of Hopeite)Mg3(PO4)2 · 4H2O

Common AssociatesHide

Associated Minerals Based on Photo Data:
Laueite1 photo of Nizamoffite associated with Laueite on mindat.org.

Fluorescence of NizamoffiteHide

Other InformationHide

Notes:
dissolves readily in cold, dilute HCl
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 NizamoffiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Kampf, A.R., Falster, A.U., Simmons, W.B. and Whitmore, R.W. (2013) Nizamoffite, IMA 2012-076. CNMNC Newsletter No. 15, February 2013, page 9; Mineralogical Magazine, 77, 1-12.
Kampf, A. R., Falster, A. U., Simmons, W. B., & Whitmore, R. W. (2013). Nizamoffite, Mn2+ Zn2 (PO4) 2 (H2O) 4, the Mn analogue of hopeite from the Palermo No. 1 pegmatite, North Groton, New Hampshire. American Mineralogist, 98(10), 1893-1898.

Internet Links for NizamoffiteHide

Localities for NizamoffiteHide

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.
USA (TL)
 
  • New Hampshire
    • Grafton Co.
      • Groton
Kampf, A. R., Falster, A. U., Simmons, W. B., & Whitmore, R. W. (2013). Nizamoffite, Mn2+ Zn2 (PO4) 2 (H2O) 4, the Mn analogue of hopeite from the Palermo No. 1 pegmatite, North Groton, New Hampshire. American Mineralogist, 98(10), 1893-1898.
  • North Carolina
    • Cleveland Co.
      • Kings Mountain District
Jason Smith collection, A. Kampf PXRD/EDS 5/2018
Mineral and/or Locality  
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