Hazenite Mineral Data

General Hazenite Information

Chemical Formula:

KNaMg2(PO4)2•14H2O

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

Empirical Formula:

KNaMg₂(PO₄)₂•14(H₂O)

Environment:

Found in dried-out or decomposed algae on porous calcium-carbonate (calcite and aragonite) substrates. Precipitated by microbes. Struvite group

IMA Status:

Proposed IMA 2007

Locality:

South shore of Mono Lake, California, USA. Link to MinDat.org Location Data.

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.

Synonym:

IMA2007-061

Search for Hazenite Images

Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.

Hazenite Crystallography

Axial Ratios:

a:b:c =0.2754:1:0.4456

Cell Dimensions:

a = 6.9349, b = 25.1737, c = 11.2189, Z = 4; V = 1,958.56 Den(Calc)= 1.87

Crystal System:

Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pmnb

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 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),

Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above

Yang H , Sun H J , Journal of Solid State Chemistry , 177 (2004) p.2991-2997, Crystal structure of a new phosphate compound, Mg2KNa(PO4)2*14H2O, Locality: synthetic

Physical Properties of Hazenite

Cleavage:

{001} Good

Color:

Colorless.

Density:

1.91

Diaphaneity:

Transparent

Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Habit:

Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).

Habit:

Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)

Habit:

Tabular - Form dimensions are thin in one direction.

Hardness:

2-2.5 - Gypsum-Finger Nail

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Hazenite

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

Electron Density:

Bulk Density (Electron Density)=1.95 gm/cc
note: Specific Gravity of Hazenite =1.87 gm/cc.

Fermion Index:

Fermion Index = 0.0091142911
Boson Index = 0.9908857089

Photoelectric:

PE_Hazenite= 1.59 barns/electron
U=PE_Hazenite x r_electron= 3.11 barns/cc.

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

Dana Class:

40.01.01.03 (40)Hydrated Phosphates, etc

(40.01)where A++ B++ (XO4) · x(H2O)

(40.01.01)Struvite Group

40.01.01.01 Struvite (NH4)MgPO4•6(H2O) P mn2₁ mm2

40.01.01.02 Struvite-(K)! KMg(PO4)•6(H2O) P mn2₁ mm2

40.01.01.03 Hazenite KNaMg2(PO4)2•14H2O Pmnb 2/m 2/m 2/m

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

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

Search for Hazenite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Hazenite :

A Bijoux Google Search for Hazenite
Adam's Minerals Google Search for Hazenite
Cape Minerals Google Search for Hazenite
Dakota Matrix Minerals Google Search for Hazenite
Excalibur Mineral Corp. Google Search for Hazenite
Exceptional Minerals Google Search for Hazenite
John Betts Fine Minerals Search for Hazenite
McDougall Minerals Google Search for Hazenite
Mineral News Website Link
Rock and Mineral Shows Google Search for Hazenite
Weinrich Minerals, Inc. Google Search for Hazenite

Ask about Hazenite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

Print or Cut-and-Paste your Hazenite Specimen Label here :

Hazenite

KNaMg2(PO4)2•14H2O
Dana No: 40.01.01.03 Strunz No: 08.CH.40
Locality:

Notes: