Hematolite Mineral Data

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General Hematolite Information

Chemical Formula:

(Mn,Mg,Al)15(AsO3)(AsO4)2(OH)23

Composition:

Molecular Weight = 1,468.19 gm

Magnesium 4.97 % Mg 8.24 % MgO

Manganese 37.42 % Mn 48.32 % MnO

Aluminum 3.68 % Al 6.94 % Al₂O₃

Arsenic 15.31 % As 6.74 % As₂O₃ / 15.65 % As₂O₅

Hydrogen 1.58 % H 14.11 % H₂O

Oxygen 37.05 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Mn²⁺₁₀Mg₃Al₂(AsO₃)(AsO₄)₂(OH)₂₃

Environment:

In fissures in metamorphosed limestone and metamorphosed Fe-Mn orebodies.

IMA Status:

Valid Species (Pre-IMA) 1884

Locality:

Moss mine, Nordmark and Langban, Varmland, Sweden. Link to MinDat.org Location Data.

Name Origin:

From the Greek for "blood" in allusion to its color.

Name Pronunciation:

Hematolite + Pronunciation

Synonym:

ICSD 200234

PDF 33-868

Hematolite Image

Images:

Hematolite

Comments: Reddish-orange granular hematolite in white quartz.
Location: Langban, Varmland, Sweden. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Hematolite Crystallography

Axial Ratios:

a:c = 1:4.42296

Cell Dimensions:

a = 8.275, c = 36.6, Z = 3; V = 2,170.44 Den(Calc)= 3.37

Crystal System:

Trigonal - PyramidalH-M Symbol (3) Space Group: R 3

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

By Intensity(I/I_o): 4.137(1), 12.2(0.36), 5.642(0.29),

Forms:

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Forms: ( 0 1 5) ( 0 0 1)

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Crystal Structure:

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Moore P B , Araki T , American Mineralogist , 63 (1978) p.150-159, Hematolite: A complex dense-packed sheet structure

Physical Properties of Hematolite

Cleavage:

{0001} Perfect

Color:

Blood red, Brown red, Black, Black red.

Density:

3.49

Diaphaneity:

Translucent to Subopaque

Fracture:

Brittle - Uneven - Very brittle fracture producing uneven fragments.

Habit:

Tabular - Form dimensions are thin in one direction.

Hardness:

3.5 - Copper Penny

Luster:

Vitreous - Pearly

Streak:

brown red

Optical Properties of Hematolite

Gladstone-Dale:

CI meas= 0.037 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.002 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2147,KPDmeas= 0.2073,KC= 0.2152
Ncalc = 1.73 - 1.75

Optical Data:

Uniaxial (-), e=1.714, w=1.733, bire=0.0190.

Calculated Properties of Hematolite

Electron Density:

Bulk Density (Electron Density)=3.24 gm/cc
note: Specific Gravity of Hematolite =3.37 gm/cc.

Fermion Index:

Fermion Index = 0.005146548
Boson Index = 0.994853452

Photoelectric:

PE_Hematolite= 20.17 barns/electron
U=PE_Hematolite x rElectron Density= 65.38 barns/cc.

Radioactivity:

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

Hematolite Classification

Dana Class:

43.04.06.01 (43)Compound Phosphates, etc.

(43.04)(Anhydrous Compound Anions With Hydroxyl or Halogen)

(43.04.06)Dana Group

43.04.06.01 Hematolite (Mn,Mg,Al)15(AsO3)(AsO4)2(OH)23 R 3 3

Strunz Class:

08.BE.45 08 - PHOSPHATES, ARSENATES, VANADATES

08.B - Phosphates, etc. with Additional Anions, without H2O

08.BE -With only medium-sized cations, (OH, etc.):RO4 > 2:1

08.BE.45 Dixenite CuMn14Fe(AsO3)5(SiO4)2(AsO4)(OH)6 R 3 3

08.BE.45 Hematolite (Mn,Mg,Al)15(AsO3)(AsO4)2(OH)23 R 3 3

08.BE.45 Kraisslite (Mn,Mg)24Zn3Fe(AsO3)2(AsO4)3(SiO4)6(OH)18 P 6₃22 6 2 2

08.BE.45 Mcgovernite Mn9Mg4Zn2As2Si2O17(OH)14 R 3c 3 2/m

08.BE.45 Turtmannite! (Mn,Mg)25.5[(V,As)O4]3(SiO4)3[AsO3]xO5-5x(OH)20x R 3c 3 2/m

08.BE.45 Arakiite! (Zn,Mn)(Mn,Mg)12(Fe,Al)2(AsO3)(AsO4)2(OH)23 Cc m

Other Hematolite Information

References:

NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Hematolite :
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 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

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

Hematolite

(Mn,Mg,Al)15(AsO3)(AsO4)2(OH)23
Dana No: 43.04.06.01 Strunz No: 08.BE.45
Locality:

Notes: