[Newest Minerals] [Mineral Auctions] [Mineral Gallery] The Mineral Gallery's Exceptional Specimens and Mineral Hall of Fame Visa, PayPal, and Mastercard are Welcomed General Matveevite InformationKTiMn2Fe+++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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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 Crystallographya: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 MatveeviteCI 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 MatveeviteBulk 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 Classification42.11.21.03 (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 InformationNAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8) |
Links to other databases for Matveevite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - Google Images 4 - Google Scholar 5 - MinDAT 6 - MinMax(Deutsch) 7 - MinMax(English) 8 - Mineralienatlas (Deutsch) 9 - QUT Mineral Atlas 10 - Ruff.Info Search for Matveevite using: Visit our Advertisers for Matveevite : AA Mineral SpecimensB & L Fine Minerals Crystalarium.com Dan Weinrich Fine Minerals Dan Weinrich Auctions Dakota Matrix Desert Winds Gems and Minerals Excalibur Minerals Exceptional Minerals Fabre Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club Wrights Rock Shop Translate Matveevite Mineral Data : Ask about Matveevite here : Print or Cut-and-Paste your Matveevite Specimen Label here :
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