Millisite Mineral Data (original) (raw)

General Millisite Information

Help on Chemical Formula: Chemical Formula:

(Na,K)CaAl6(PO4)4(OH)9•3(H2O)

Help on Composition: Composition:

Molecular Weight = 815.98 gm

Potassium 1.20 % K 1.44 % K2O

Sodium 2.11 % Na 2.85 % Na2O

Calcium 4.91 % Ca 6.87 % CaO

Aluminum 19.84 % Al 37.49 % Al2O3

Phosphorus 15.18 % P 34.79 % P2O5

Hydrogen 1.85 % H 16.56 % H2O

Oxygen 54.90 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

Na0.75K0.25CaAl6(PO4)4(OH)9•3(H2O)

Help on Environment: Environment:

Found in altered phosphate deposits.

Help on IMA Status: IMA Status:

Valid Species (Pre-IMA) 1930

Help on Locality: Locality:

Clay Canyon, Fairfield, Utah County, Utah, USA. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named for F. T. Millis of Lehi, Utah, who found the first specimens.

Help on Name Pronunciation: Name Pronunciation:

Millisite + Pronunciation Say MILLISITE

Help on Synonym: Synonym:

Lehiite

Millisite Image

Click Here for Larger Millisite Image in a New Browser Window Images:

Millisite Crystallography

Help on Axial Ratios: Axial Ratios:

a:c = 1:2.72428

Help on Cell Dimensions: Cell Dimensions:

a = 7, c = 19.07, Z = 2; V = 934.43 Den(Calc)= 2.90

Help on Crystal System: Crystal System:

Tetragonal - TrapezohedralH-M Symbol (4 2 2) Space Group: P 41212,P 43212

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 4.73(1), 4.8(1), 4.84(1),

Physical Properties of Millisite

Help on Cleavage: Cleavage:

{001} Good

Help on Color: Color:

Greenish, White, Light gray.

Help on Density: Density:

2.83

Help on Habit: Habit:

Fibrous - Crystals made up of fibers.

Help on Hardness: Hardness:

5.5 - Knife Blade

Help on Luminescence: Luminescence:

Non-fluorescent.

Help on Magnetism: Magnetism:

Nonmagnetic

Help on Streak: Streak:

white

Optical Properties of Millisite

Help on Gladstone-Dale: Gladstone-Dale:

CI meas= 0.046 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.069 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2051,KPDmeas= 0.2101,KC= 0.2202
Ncalc = 1.62 - 1.64

Help on Optical Data: Optical Data:

Biaxial (+), a=1.584, b=1.598, g=1.602, bire=0.0180

Calculated Properties of Millisite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=2.84 gm/cc
note: Specific Gravity of Millisite =2.83 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.0003340493
Boson Index = 0.9996659507

Help on Photoelectric: Photoelectric:

PEMillisite = 2.09 barns/electron
U=PEMillisite x relectron= 5.95 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 17.37 (Gamma Ray American Petroleum Institute Units)
Concentration of Millisite per GRapi unit = 5.76 (%)

Estimated Radioactivity from Millisite - barely detectable

Millisite Classification

Help on Dana Class: Dana Class:

42.07.09.01 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen

(42.07)where (AB)5 (XO4)3 Zq � x(H2O)

(42.07.09)Dana Group

42.07.09.01 Millisite (Na,K)CaAl6(PO4)4(OH)9•3(H2O) P 41212,P 43212 4 2 2

Help on Strunz Class: Strunz Class:

08.DL.10 08 - PHOSPHATES, ARSENATES, VANADATES

08.D - Phosphates, etc

08.DL -With large and medium-sized cations, (OH, etc.):RO4 = 2:1

08.DL.10 Cyrilovite NaFe3(PO4)2(OH)4•2(H2O) P 412121,P 432121 4 2 2

08.DL.10 Millisite (Na,K)CaAl6(PO4)4(OH)9•3(H2O) P 41212,P 43212 4 2 2

08.DL.10 Wardite NaAl3(PO4)2(OH)4•2(H2O) P 41212 4 2 2

Other Millisite Information

Help on References: References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

Help on See Also: See Also:

Links to other databases for Millisite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - MinDAT
10 - Mineralienatlas (Deutsch)
11 - Online Mineral Museum
12 - QUT Mineral Atlas
13 - Ruff.Info

Search for Millisite using:

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

Visit our Advertisers for Millisite :

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

Ask about Millisite 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 Espa�ol

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

Millisite

(Na,K)CaAl6(PO4)4(OH)9•3(H2O)
Dana No: 42.07.09.01 Strunz No: 08.DL.10
Locality:

Notes: