Mineralogy Database

Haradaite Mineral Data

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General Haradaite Information

Help on Chemical  Formula: Chemical Formula: Sr4V++++4Si8O28
Help on Composition: Composition: Molecular Weight = 1,221.38 gm
   Barium      4.50 %  Ba    5.02 % BaO
   Strontium  22.96 %  Sr   27.15 % SrO
   Calcium     0.98 %  Ca    1.38 % CaO
   Aluminum    0.22 %  Al    0.42 % Al2O3
   Vanadium   16.27 %  V    29.04 % V2O5
   Silicon    18.40 %  Si   39.36 % SiO2
   Oxygen     36.68 %  O
             ______        ______ 
             100.00 %      102.36 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Sr3.2Ba0.4Ca0.3Al0.1V5+3.9Si8O28
Help on Environment: Environment: In coarse-grained rhodonite ore (Noda-Tamagawa mine, Japan); as veinlets cutting rhodonite-goldmanite ore (Yamato mine, Japan).
Help on IMA Status: IMA Status: Approved IMA 1974
Help on Locality: Locality: In Japan, in the Yamato mine and on Amamioshima Island, Kagoshima Prefecture; in the Noda-Tamagawa mine, Iwate Prefecture; and in the Matsuo mine, Kochi Prefecture. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Zyunpei Harada (1898{1992), Emeritus Professor, Hokkaido University, Sapporo, Japan.
Help on Name Pronunciation: Name Pronunciation: Haradaite + Pronunciation Say HARADAITE
Help on Synonym: Synonym: ICSD 30451
  PDF 18-1284

Haradaite Image

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Comments: Translucent green crystal prism fragments of haradaite.
Location: Gambatesa Mine, Val Graveglia, Liguria, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Haradaite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.4822:1:0.364
Help on Cell Dimensions: Cell Dimensions: a = 7.06, b = 14.64, c = 5.33, Z = 1; V = 550.90 Den(Calc)= 3.68
Help on Crystal System: Crystal System: Orthorhombic - Pyramidal H-M Symbol (mm2) Space Group: Ama2
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.2(1), 2.88(0.9), 3.65(0.4),

Physical Properties of Haradaite

Help on Cleavage: Cleavage: {010} Perfect, {100} Distinct, {001} Distinct
Help on Color: Color: Green, Light blue, Light green.
Help on Density: Density: 3.8
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 4.5 - Between Fluorite and Apatite
Help on Luster: Luster: Vitreous (Glassy)

Optical Properties of Haradaite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.174 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.147 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1964,KPDmeas= 0.1902,KC= 0.2301
Ncalc = 1.85 - 1.87
Help on Optical Data: Optical Data: Biaxial (?), a=1.713, b=1.721, g=1.734, bire=0.0210, 2V(Calc)=78, 2V(Meas)=90. Dispersion r < v very strong.
Help on Pleochroism (x): Pleochroism (x): colorless or very pale green.
Help on Pleochroism (y): Pleochroism (y): colorless or light yellowish green.
Help on Pleochroism (z): Pleochroism (z): bluish green or bluish green.

Calculated Properties of Haradaite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.48 gm/cc
note: Specific Gravity of Haradaite =3.68 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PEHaradaite = 48.77 barns/electron
U=PEHaradaite x rElectron Density= 169.58 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Haradaite is Not Radioactive

Haradaite Classification

Help on  Dana Class: Dana Class: (65)Inosilicate Single-Width Unbranched Chains, W=1
  (65.03)with chains P=4
  (65.03.01)Haradaite group Haradaite Sr4V4Si8O28 Ama2 mm2 Suzukiite BaVO(SiO3)2 Ama2 mm2
Help on  Strunz Class: Strunz Class: 09.DH.15 09 - SILICATES (Germanates)
  09.D - Inosilicates* Structural terminology according to Liebau (1985)
  09.DH -Inosilicates with 4-periodic single chains, Si4O12
09.DH.15 Haradaite Sr4V4Si8O28 Ama2 mm2
09.DH.15 Suzukiite BaVO(SiO3)2 Ama2 mm2

Other Haradaite Information

Help on References: References: NAME( AntBidBlaNic2) PHYS. PROP.(AntBidBlaNic2) OPTIC PROP.(AntBidBlaNic2)
Help on See Also: See Also: Links to other databases for Haradaite :
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

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Dana No: Strunz No: 09.DH.15





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