Mitryaevaite Mineral Data

[Newest Minerals] [Equipment] [Analytical Services] [About Us] [Mineral Gallery] [eBay Store]
See Also: [Diamond Crystals] [Mineral News] [Hudson Institute] [Minerals on CDROM]
Rare Minerals, Meteorites, Equipment and Analytical Services
Excalibur Mineral Company, World leaders in the supply of rare species
Serving the scientific and collector communities since 1974

General Mitryaevaite Information

Chemical Formula:

Al5[(PO4)2[(P,S)O3(OH,O)]2F2(OH)2(H2O)8•6.48(H2O)

Composition:

Molecular Weight = 850.59 gm

Aluminum 15.86 % Al 29.97 % Al₂O₃

Phosphorus 12.75 % P 29.20 % P₂O₅

Hydrogen 3.91 % H 34.95 % H₂O

Sulfur 1.88 % S

Oxygen 61.13 % O

Fluorine 4.47 % F 4.47 % F

- % F -1.88 % -O=F₂

______ ______

100.00 % 96.70 % = TOTAL OXIDE

Empirical Formula:

Al₅(PO₄)₂(PO₃OH)_1.5(SO3OH)_0.5F₂(OH)₂(H₂O)₈·6.5(H₂O)

Environment:

In vanadium-bearing black shales in a Cambrian carbonaceous chert formation.

IMA Status:

Approved IMA 1997 (Dana # Added)

Locality:

Northwestern Karatau Range and Zhabagly Mountains, southern Kazakhstan. Link to MinDat.org Location Data.

Name Origin:

For Dr. Nonna Mikhailovna Mitryaeva (1920-) in recognition of her contributions to the mineralogy of Kazakhstan.

Name Pronunciation:

Mitryaevaite + Pronunciation

Synonym:

IMA1991-035

Mitryaevaite Image

Images:

Mitryaevaite

Comments: Small grain of white mitryaevaite on sample holder.
Location: Northwestern Karatau range, Kazakhstan. Scale: Peg Size 2 mm.
© Sergey Vasiliev / Systematic Mineralogy

Mitryaevaite Crystallography

Axial Ratios:

a:b:c =0.6831:1:1.0166

Cell Dimensions:

a = 6.918, b = 10.127, c = 10.296, Z = 1; alpha = 77.036°, beta = 73.989°, gamma = 76.272° V = 656.37 Den(Calc)= 2.15

Crystal System:

Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1

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

By Intensity(I/I_o): 9.75(1), 6.35(0.3), 9.24(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

Cahill C L , Krivovichev S V , Burns P C , Bekenova G K , Shabanova T A , The Canadian Mineralogist , 39 (2001) p.179-186, The crystal structure of mitryaevaite, Al5(PO4)2[(P,S)O3(OH,O)]2F2(OH)2(H2O)8*6.48H2O,, determined from a microcrystal using synchrotron radiation

Physical Properties of Mitryaevaite

Cleavage:

{001} Perfect, {010} Perfect, {100} Good

Color:

Colorless, White.

Density:

2.02 - 2.03, Average = 2.02

Diaphaneity:

Transparent

Habit:

Encrustations - Forms crust-like aggregates on matrix.

Habit:

Nodular - Tuberose forms having irregular protuberances over the surface.

Habit:

Pulverulent - Forms a loose, poorly-coherent powdery mass.

Luster:

Vitreous - Dull

Streak:

white

Optical Properties of Mitryaevaite

Gladstone-Dale:

CI meas= -0.064 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= -0.012 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2392,KPDmeas= 0.2516,KC= 0.2364
Ncalc = 1.48 - 1.5

Optical Data:

Biaxial (+), a=1.504, g=1.515, bire=0.0110

Calculated Properties of Mitryaevaite

Electron Density:

Bulk Density (Electron Density)=2.19 gm/cc
note: Specific Gravity of Mitryaevaite =2.13 gm/cc.

Fermion Index:

Fermion Index = 0.0004406685
Boson Index = 0.9995593315

Photoelectric:

PE_Mitryaevaite= 1.29 barns/electron
U=PE_Mitryaevaite x rElectron Density= 2.82 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Mitryaevaite is Not Radioactive

Mitryaevaite Classification

Dana Class:

43.05.21.01 (43)Compound Phosphates, etc.

(43.05)(Hydrated Compound Anions With Hydroxyl or Halogen)

(43.05.21)Dana Group

43.05.21.01 Mitryaevaite! Al5[(PO4)2[(P,S)O3(OH,O)]2F2(OH)2(H2O)8•6.48(H2O) P1 1

Strunz Class:

08.DB.25 08 - PHOSPHATES, ARSENATES, VANADATES

08.D - Phosphates, etc

08.DB -With only medium-sized cations, (OH, etc.):RO4 < 1:1

08.DB.25 Mitryaevaite! Al5[(PO4)2[(P,S)O3(OH,O)]2F2(OH)2(H2O)8•6.48(H2O) P1 1

Other Mitryaevaite Information

References:

NAME( MinRec) PHYS. PROP.(Am.Min.,V84,p1994-1999,V86, p 1115) OPTIC PROP.(Am.Min.,Vol.84,p194,1999)

See Also:

Links to other databases for Mitryaevaite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - Google Images
4 - Google Scholar
5 - Handbook of Mineralogy (MinSocAm)
6 - Handbook of Mineralogy (UofA)
7 - MinDAT
8 - MinMax(Deutsch)
9 - MinMax(English)
10 - Mineralienatlas (Deutsch)
11 - QUT Mineral Atlas
12 - Ruff.Info

Search for Mitryaevaite using:

[ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Mitryaevaite :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Desert Winds Gems and Minerals

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Mitryaevaite Mineral Data :

Ask about Mitryaevaite 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 Mitryaevaite Specimen Label here :

Mitryaevaite

Al5[(PO4)2[(P,S)O3(OH,O)]2F2(OH)2(H2O)8•6.48(H2O)
Dana No: 43.05.21.01 Strunz No: 08.DB.25
Locality:

Notes: