Mineralogy Database

Hazenite Mineral Data

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General Hazenite Information

Help on Chemical  Formula: Chemical Formula: KNaMg2(PO4)2•14H2O
Help on Composition: Composition: Molecular Weight = 552.85 gm
   Potassium    7.07 %  K     8.52 % K2O
   Sodium       4.16 %  Na    5.61 % Na2O
   Magnesium    8.79 %  Mg   14.58 % MgO
   Phosphorus  11.21 %  P    25.67 % P2O5
   Hydrogen     5.10 %  H    45.62 % H2O
   Oxygen      63.67 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: KNaMg2(PO4)2•14(H2O)
Help on Environment: Environment: Found in dried-out or decomposed algae on porous calcium-carbonate (calcite and aragonite) substrates. Precipitated by microbes. Struvite group
Help on IMA Status: IMA Status: Proposed IMA 2007
Help on Locality: Locality: South shore of Mono Lake, California, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Robert M. Hazen, Senior Research Scientist at the Carnegie Institution of Washington�s Geophysical Laboratory and the Clarence Robinson Professor of Earth Science at Georg e Mason University.
Help on Synonym: Synonym: IMA2007-061

Hazenite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.2754:1:0.4456
Help on Cell Dimensions: Cell Dimensions: a = 6.9349, b = 25.1737, c = 11.2189, Z = 4; V = 1,958.56 Den(Calc)= 1.87
Help on Crystal System: Crystal System: Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: Pmnb
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 4.302(1), 2.67(0.51), 2.767(0.51),2.742(0.48), 2.786(0.43), 2.803(0.32), 4.184(0.22), 3.262(0.2),

Physical Properties of Hazenite

Help on Cleavage: Cleavage: {001} Good
Help on Color: Color: Colorless.
Help on Density: Density: 1.91
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Habit: Habit: Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 2-2.5 - Gypsum-Finger Nail
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white

Optical Properties of Hazenite

Help on Optical Data: Optical Data: NCalc= 1.48 - from Gladstone-Dale relationship (KC = 0.2586) where Ncalc=Dcalc*KC+1
NCalc= 1.49 - from Gladstone-Dale relationship (KC = 0.2586) where Ncalc=Dmeas*KC+1

Calculated Properties of Hazenite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=1.95 gm/cc
note: Specific Gravity of Hazenite =1.87 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0091142911
Boson Index = 0.9908857089
Help on Photoelectric: Photoelectric: PEHazenite = 1.59 barns/electron
U=PEHazenite x relectron= 3.11 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 106.32 (Gamma Ray American Petroleum Institute Units)
Concentration of Hazenite per GRapi unit = 0.94 (%)

Estimated Radioactivity from Hazenite - barely detectable


Hazenite Classification

Help on  Dana Class: Dana Class: (40)Hydrated Phosphates, etc
  (40.01)where A++ B++ (XO4) � x(H2O)
  (40.01.01)Struvite Group Struvite (NH4)MgPO4•6(H2O) P mn21 mm2 Struvite-(K)! KMg(PO4)•6(H2O) P mn21 mm2 Hazenite KNaMg2(PO4)2•14H2O Pmnb 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 08.CH.40 08 - PHOSPHATES, ARSENATES, VANADATES
  08.C - Phosphates without Additional Anions, with H2O
  08.CH -With large and medium-sized cations, RO4:H2O < 1:1
08.CH.40 Struvite (NH4)MgPO4•6(H2O) P mn21 mm2
08.CH.40 Struvite-(K)! KMg(PO4)•6(H2O) P mn21 mm2
08.CH.40 Hazenite KNaMg2(PO4)2•14H2O Pmnb 2/m 2/m 2/m

Other Hazenite Information

Help on See Also: See Also: Links to other databases for Hazenite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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Dana No: Strunz No: 08.CH.40





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