Matveevite Mineral Data (original) (raw)

General Matveevite Information

Help on Chemical Formula: Chemical Formula:

KTiMn2Fe+++2(PO4)4(OH)3•15(H2O)

Help on Composition: Composition:

Molecular Weight = 1,009.69 gm

Potassium 3.87 % K 4.66 % K2O

Titanium 4.74 % Ti 7.91 % TiO2

Manganese 10.88 % Mn 14.05 % MnO

Iron 11.06 % Fe 15.82 % Fe2O3

Phosphorus 12.27 % P 28.12 % P2O5

Hydrogen 3.29 % H 29.44 % H2O

Oxygen 53.88 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

KTiMn2+2Fe3+2(PO4)4(OH)3•15(H2O)

Help on Environment: Environment:

The Mn end member in the series with paulkerrite. Decomposition product in granitic pegmatite. Matveevite (1991) discredited as equivalent to Mg-Al-bearing benyacarite.

Help on IMA Status: IMA Status:

Discredited IMA 2006 - Approved IMA 1991

Help on Locality: Locality:

Ilmenskih National Park, Ural Mountains, Russia. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named in 1986 for K. K. Matveev (1875-1954).

Search for Matveevite Images

Click Here To Search Images:

Matveevite Crystallography

Help on Axial Ratios: Axial Ratios:

a:b:c =0.6052:1:0.5126

Help on Cell Dimensions: Cell Dimensions:

a = 12.42, b = 20.52, c = 10.52, Z = 4; V = 2,681.11 Den(Calc)= 2.50

Help on Crystal System: Crystal System:

OrthorhombicSpace Group: Pnam ro P na21

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 6.23(1), 3.15(0.9), 10.4(0.9),7.5(0.8), 2.86(0.4),

Physical Properties of Matveevite

Help on Cleavage: Cleavage:

{010} Perfect

Help on Color: Color:

Colorless, White, Yellowish white.

Help on Density: Density:

2.32

Help on Diaphaneity: Diaphaneity:

Transparent to Translucent

Help on Fracture: Fracture:

Brittle - Irregular - Very brittle fracture producing irregular fragments

Help on Habit: Habit:

Platy - Sheet forms (e.g. micas).

Help on Hardness: Hardness:

2.5 - Finger Nail

Help on Luster: Luster:

Vitreous - Pearly

Help on Streak: Streak:

white

Optical Properties of Matveevite

Help on Gladstone-Dale: Gladstone-Dale:

CI meas= 0.055 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.123 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2363,KPDmeas= 0.2546,KC= 0.2693
Ncalc = 1.62 - 1.67

Help on Optical Data: Optical Data:

Biaxial (+), a=1.574, b=1.58, g=1.618, bire=0.0440

Calculated Properties of Matveevite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=2.33 gm/cc
note: Specific Gravity of Matveevite =2.32 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.0087448932
Boson Index = 0.9912551068

Help on Photoelectric: Photoelectric:

PEMatveevite = 7.69 barns/electron
U=PEMatveevite x relectron= 17.94 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 56.21 (Gamma Ray American Petroleum Institute Units)
Concentration of Matveevite per GRapi unit = 1.78 (%)

Estimated Radioactivity from Matveevite - barely detectable

Matveevite Classification

Help on Dana Class: Dana Class:

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

(42.11)where (AB)4 (XO4)3 Zq � x(H2O)

(42.11.21)Paulkerrite Group

42.11.21.01 Paulkerrite K(Mg,Mn)2(Fe,Al)2Ti(PO4)4(OH)3•15(H2O) P bca 2/m 2/m 2/m

42.11.21.02 Mantienneite KMg2Al2Ti(PO4)4(OH)3•15(H2O) P bca 2/m 2/m 2/m

42.11.21.03 Matveevite? KTiMn2Fe2(PO4)4(OH)3•15(H2O) Pnam ro P na21 Ortho

42.11.21.04 Benyacarite (H2O,K)2Ti(Mn,Fe)2(Fe,Ti)2Ti(PO4)4(O,F)2•14(H2O) P bca 2/m 2/m 2/m

Help on Strunz Class: Strunz Class:

08.DH.35 08 - PHOSPHATES, ARSENATES, VANADATES

08.D - Phosphates, etc

08.DH -With large and medium-sized cations, (OH, etc.):RO4 < 1:1

08.DH.35 Benyacarite (H2O,K)2Ti(Mn,Fe)2(Fe,Ti)2Ti(PO4)4(O,F)2•14(H2O) P bca 2/m 2/m 2/m

08.DH.35 Matveevite? KTiMn2Fe2(PO4)4(OH)3•15(H2O) Pnam ro P na21 Ortho

08.DH.35 Mantienneite KMg2Al2Ti(PO4)4(OH)3•15(H2O) P bca 2/m 2/m 2/m

08.DH.35 Paulkerrite K(Mg,Mn)2(Fe,Al)2Ti(PO4)4(OH)3•15(H2O) P bca 2/m 2/m 2/m

Other Matveevite Information

Help on References: References:

NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)

Help on See Also: See Also:

Links to other databases for Matveevite :
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 Matveevite using:

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

Visit our Advertisers for Matveevite :

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

Ask about Matveevite 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 Matveevite Specimen Label here :

Matveevite

KTiMn2Fe+++2(PO4)4(OH)3•15(H2O)
Dana No: 42.11.21.03 Strunz No: 08.DH.35
Locality:

Notes: