General Matveevite Information![]() KTiMn2Fe+++2(PO4)4(OH)3•15(H2O) |
![]() Molecular Weight = 1,009.69 gm |
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Potassium 3.87 % K 4.66 % K2O |
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Titanium 4.74 % Ti 7.91 % TiO2 |
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Manganese 10.88 % Mn 14.05 % MnO |
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Iron 11.06 % Fe 15.82 % Fe2O3 |
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Phosphorus 12.27 % P 28.12 % P2O5 |
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Hydrogen 3.29 % H 29.44 % H2O |
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Oxygen 53.88 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
![]() KTiMn2+2Fe3+2(PO4)4(OH)3•15(H2O) |
![]() The Mn end member in the series with paulkerrite. Decomposition product in granitic pegmatite. Matveevite (1991) discredited as equivalent to Mg-Al-bearing benyacarite. |
![]() Discredited IMA 2006 - Approved IMA 1991 |
![]() Ilmenskih National Park, Ural Mountains, Russia. Link to MinDat.org Location Data. |
![]() Named in 1986 for K. K. Matveev (1875-1954). |
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| | Matveevite Crystallography![]() a:b:c =0.6052:1:0.5126 |
![]() a = 12.42, b = 20.52, c = 10.52, Z = 4; V = 2,681.11 Den(Calc)= 2.50 |
![]() OrthorhombicSpace Group: Pnam ro P na21 |
![]() 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![]() {010} Perfect |
![]() Colorless, White, Yellowish white. |
![]() 2.32 |
![]() Transparent to Translucent |
![]() Brittle - Irregular - Very brittle fracture producing irregular fragments |
![]() Platy - Sheet forms (e.g. micas). |
![]() 2.5 - Finger Nail |
![]() Vitreous - Pearly |
![]() white |
| Optical Properties of Matveevite![]() 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 ![]() Biaxial (+), a=1.574, b=1.58, g=1.618, bire=0.0440 |
| Calculated Properties of Matveevite![]() Bulk Density (Electron Density)=2.33 gm/cc |
note: Specific Gravity of Matveevite =2.32 gm/cc. ![]() Fermion Index = 0.0087448932 |
Boson Index = 0.9912551068 ![]() PEMatveevite = 7.69 barns/electron |
U=PEMatveevite x relectron= 17.94 barns/cc. ![]() |
GRapi = 56.21 (Gamma Ray American Petroleum Institute Units)
Estimated Radioactivity from Matveevite | Matveevite Classification![]() 42.11.21.03 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen |
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(42.11)where (AB)4 (XO4)3 Zq · x(H2O) |
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(42.11.21)Paulkerrite Group |
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![]() 08.DH.35 08 - PHOSPHATES, ARSENATES, VANADATES |
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08.D - Phosphates, etc |
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08.DH -With large and medium-sized cations, (OH, etc.):RO4 < 1:1 |
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| Other Matveevite Information![]() NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8) |
![]() 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: Visit our Advertisers for Matveevite : A Bijoux Google Search for MatveeviteAdam'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 : Print or Cut-and-Paste your Matveevite Specimen Label here :
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