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Hazenite

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About HazeniteHide

Professor Robert M.Hazen
Formula:
KNaMg2(PO4)2 · 14H2O
Colour:
colourless
Lustre:
Vitreous
Hardness:
2 - 2½
Specific Gravity:
1.91
Crystal System:
Orthorhombic
Member of:
Name:
Named by H. Yang, H.J. Sun, and R.T. Downs in 2011 in honor of Dr. Robert M. Hazen (1 November 1948, Rockville Centre, New York, USA - ), mineralogist at the Carnegie Institute for Science Geophysical Laboratory.

Classification of HazeniteHide

Approved
Approval Year:
2007
First Published:
2011
8.CH.40

8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
H : With large and medium-sized cations, RO4:H2O < 1:1

Physical Properties of HazeniteHide

Vitreous
Transparency:
Transparent
Colour:
colourless
Streak:
white
Hardness:
2 - 2½ on Mohs scale
Hardness Data:
Measured
Tenacity:
Brittle
Cleavage:
Distinct/Good
{001}
Density:
1.91 g/cm3 (Measured)    1.88 g/cm3 (Calculated)

Chemical Properties of HazeniteHide

Formula:
KNaMg2(PO4)2 · 14H2O

Crystallography of HazeniteHide

Crystal System:
Orthorhombic
Class (H-M):
mm2 - Pyramidal
Cell Parameters:
a = 6.9349 Å, b = 25.1737 Å, c = 11.2189 Å
Ratio:
a:b:c = 0.275 : 1 : 0.446
Unit Cell V:
1,958.56 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.302 (100)
4.184 (22)
3.262 (20)
2.803 (32)
2.786 (43)
2.767 (51)
2.742 (48)
2.670 (51)

Type Occurrence of HazeniteHide

General Appearance of Type Material:
radiating elongated tabular or prismatic clusters or single crystals up to 0.06 x 0.12 x 0.40 mm
Place of Conservation of Type Material:
University of Arizona Mineral Museum
Geological Setting of Type Material:
in dried-out or decomposed algae on porous calcite and aragonite
Associated Minerals at Type Locality:

Synonyms of HazeniteHide

Relationship of Hazenite to other SpeciesHide

Member of:
Other Members of this group:
Struvite(NH4)Mg(PO4) · 6H2OOrth. mm2
Struvite-(K)KMg(PO4)·6H2OOrth. mm2 : Pmn21

Related Minerals - Nickel-Strunz GroupingHide

8.CH.05WalentaiteH(Ca,Mn2+,Fe2+)Fe3+3(AsO4,PO4)4 · 7H2OOrth.
8.CH.10AnapaiteCa2Fe2+(PO4)2 · 4H2OTric. 1 : P1
8.CH.15PicropharmacoliteCa4Mg(AsO4)2(HAsO4)2 · 11H2OTric. 1 : P1
8.CH.20Dittmarite(NH4)Mg(PO4) · H2OOrth.
8.CH.20Niahite(NH4)(Mn2+,Mg)(PO4) · H2OOrth. mm2 : Pmn21
8.CH.25FrancoanelliteK3Al5(PO4)2(HPO4)3 · 12H2OTrig.
8.CH.25Taranakite(K,NH4)Al3(PO4)3(OH) · 9H2OTrig. 3m (3 2/m) : R3c
8.CH.30Schertelite(NH4)2MgH2(PO4)2 · 4H2OOrth.
8.CH.35Hannayite(NH4)2Mg3H4(PO4)4 · 8H2OTric. 1 : P1
8.CH.40Struvite(NH4)Mg(PO4) · 6H2OOrth. mm2
8.CH.40Struvite-(K)KMg(PO4)·6H2OOrth. mm2 : Pmn21
8.CH.45Rimkorolgite(Mg,Mn)5(Ba,Sr,Ca)(PO4)4 · 8H2OOrth.
8.CH.50BakhchisaraitseviteNa2Mg5(PO4)4 · 7H2OMon.
8.CH.55FahleiteCaZn5Fe3+2(AsO4)6 · 14H2OOrth.
8.CH.55SmolyaninoviteCo3Fe3+2(AsO4)4 · 11H2OOrth.
8.CH.60Barahonaite-(Al)(Ca,Cu,Na,Fe3+,Al)12Al2(AsO4)8(OH,Cl)x · nH2OMon. 2/m : P2/b
8.CH.60Barahonaite-(Fe)(Ca,Cu,Na,Fe3+,Al)12Fe3+2(AsO4)8(OH,Cl)x · nH2OMon. 2/m : P2/b

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 HazeniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Yang, H., Sun, H.J. (2004) Crystal structure of a new phosphate compound, Mg2KNa(PO4)2·14H2O. Journal of Solid State Chemistry: 177: 2991-2997.
Yang, H., Sun, H.J., Downs, R.T. (2011) Hazenite, KNaMg2(PO4)2·14H2O, a new biologically related phosphate mineral, from Mono Lake, California, U.S.A. American Mineralogist: 96: 675–681.

Internet Links for HazeniteHide

Localities for HazeniteHide

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)
 
  • California
    • Mono Co.
      • Mono Lake
Yang, H., Sun, H. J. and Downs, R. T. (2011): Hazenite, KNaMg2(PO4)2·14H2O, a new biologically related phosphate mineral, from Mono Lake, California, U.S.A. American Mineralogist, 96:675–681.
Mineral and/or Locality  
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