Haradaite
A valid IMA mineral species
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About Haradaite
Zyunpei Harada
Formula:
SrVSi2O7
Colour:
Bright grass green
Lustre:
Vitreous
Hardness:
4½
Specific Gravity:
3.80
Crystal System:
Orthorhombic
Name:
Named by Jun Ito in 1965 (a full description and approval came several years later) after Zyunpei Harada (5 October 1898, Yokohama, Japan - 27 April 1992, Kawasaki, Japan), Professor at Hokkaido University, Sapporo, Japan who contributed eminently to the studies on minerals in Japan.
Unique Identifiers
Mindat ID:
1817
Long-form identifier:
mindat:1:1:1817:9
Similar Names
| Hartite | A synonym of Branchite |
| Harttite | A synonym of Svanbergite |
IMA Classification of Haradaite
Approved
IMA Formula:
SrV4+Si2O7
Approval year:
1963
First published:
1974
Classification of Haradaite
9.DH.15
9 : SILICATES (Germanates)
D : Inosilicates
H : Inosilicates with 4-periodic single chains, Si4O12
9 : SILICATES (Germanates)
D : Inosilicates
H : Inosilicates with 4-periodic single chains, Si4O12
65.3.1.1
65 : INOSILICATES Single-Width,Unbranched Chains,(W=1)
3 : Single-Width Unbranched Chains, W=1 with chains P=4
65 : INOSILICATES Single-Width,Unbranched Chains,(W=1)
3 : Single-Width Unbranched Chains, W=1 with chains P=4
14.14.4
14 : Silicates not Containing Aluminum
14 : Silicates of V and Bi
14 : Silicates not Containing Aluminum
14 : Silicates of V and Bi
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Hra | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Pronunciation of Haradaite
Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Jolyon Ralph | United Kingdom |
Physical Properties of Haradaite
Vitreous
Transparency:
Transparent, Translucent
Colour:
Bright grass green
Streak:
Very pale green
Hardness:
4½ on Mohs scale
Comment:
on {010}
Cleavage:
Perfect
perfect on {010}
distinct {100} and {001}
perfect on {010}
distinct {100} and {001}
Density:
3.80 g/cm3 (Measured) 3.83 g/cm3 (Calculated)
Optical Data of Haradaite
Type:
Biaxial (-)
RI values:
nα = 1.713(5) nβ = 1.721(2) nγ = 1.734(5)
2V:
Measured: 90° , Calculated: 78°
Max. Birefringence:
δ = 0.021
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
Surface Relief:
Very High (positive)
Relative to Canada balsam mounting medium (n ≈ 1.537).
Relative to Canada balsam mounting medium (n ≈ 1.537).
This shows the grain boundary and Becke line effect under plane-polarised
light, based on the contrast between this mineral's average refractive
index and the mounting medium. It does not take into account mineral
colouration.
In focus
Interference Figure:
This shows the idealized biaxial acute bisectrix (Bxa) interference figure
- the conoscopic view for a grain cut perpendicular to the acute bisectrix, using
this mineral's 2V. The two small white dots mark the melatopes - the points
where the two optic axes emerge - and are shown only when they fall within the
field of view. The coloured bands are isochromatics, and the dark bands are
isogyres.
Rotate the stage: at 0°/90° the isogyres form a cross through the melatopes; at 45° they pull apart into curved hyperbolas. That splitting on rotation - absent in a uniaxial figure - is the standard diagnostic test for telling biaxial minerals from uniaxial ones. If 2V is large, the melatopes may fall outside the field of view, as they often do at the microscope too.
Rotate the stage: at 0°/90° the isogyres form a cross through the melatopes; at 45° they pull apart into curved hyperbolas. That splitting on rotation - absent in a uniaxial figure - is the standard diagnostic test for telling biaxial minerals from uniaxial ones. If 2V is large, the melatopes may fall outside the field of view, as they often do at the microscope too.
Dispersion:
weak
Pleochroism:
Strong
Comments:
a=X= colourless to very pale green, b=Y= colourless to light yellowish green, and c=Z= bluish green.
Chemistry of Haradaite
Mindat Formula:
SrVSi2O7
Element Weights:
Elements listed:
Common Impurities:
Ti,Al,Fe,Mn,Cu,Pb,Ca,Ba,Na,K
Crystallography of Haradaite
Crystal System:
Orthorhombic
Class (H-M):
mmm(2/m2/m2/m) - Dipyramidal
Cell Parameters:
a = 7.001 Å, b = 14.64 Å, c = 5.312 Å
Ratio:
a:b:c = 0.478 : 1 : 0.363
Unit Cell V:
544.45 ų (Calculated from Unit Cell)
Z:
4
Comment:
Space Group: Amam
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Display Options
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
View
CIF File Best | x | y | z | a | b | c
CIF File Best | x | y | z | a | b | c
Rotation
Stop | Start
Stop | Start
Labels
Console Off | On | Grey | Yellow
Console Off | On | Grey | Yellow
Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0014874 | Haradaite | Basso R, Lucchetti G, Palenzona A, Zefiro L (1995) Haradaite from the Gambatesa mine, eastern Liguria, Italy Neues Jahrbuch fur Mineralogie, Monatshefte 1995 281-288 | 1995 | Gambatesa mine, eastern Liguria, Italy | 0 | 293 | |
| 0014413 | Haradaite | Takeuchi Y, Joswig W (1967) The structure of haradaite and a note on the Si-O bond lengths in silicates Mineralogical Journal 5 98-123 | 1967 | Nodatamagawa manganese mine, Iwate, Japan | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.20 Å | (100) |
| 2.88 Å | (90) |
| 3.65 Å | (40) |
| 2.65 Å | (40) |
| 2.12 Å | (40) |
| 2.04 Å | (35) |
| 7.30 Å | (30) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| High-? alteration and/or metamorphism | |
| 32 : Ba/Mn/Pb/Zn deposits, including metamorphic deposits |
Type Occurrence of Haradaite
General Appearance of Type Material:
Small tablets to 5 mm.
Place of Conservation of Type Material:
National Science Museum, Tokyo, Japan, M15111.
Geological Setting of Type Material:
Veinlets cutting the massive metamorphosed manganese ores and wallrocks.
Associated Minerals at Type Locality:
Synonyms of Haradaite
Other Language Names for Haradaite
Relationship of Haradaite to other Species
Structurally related to group(s):
| 'Haradaite Group' | MVSi2O7 |
Common Associates
Related Minerals - Strunz-mindat Grouping
| 9.DH. | Devilliersite | Ca4Ca2Fe3+10O4[(Fe3+10Si2)O36] |
| 9.DH. | 'Gageite-2M' | (Mn,Mg,Zn)42Si16O54(OH)40 |
| 9.DH. | Bavsiite | Ba2V2O2[Si4O12] |
| 9.DH. | Yuzuxiangite | Sr3Fe3+(Si2O6)2(OH) · 3H2O |
| 9.DH. | Louisfuchsite | Ca2(Mg4Ti2)(Al4Si2)O20 |
| 9.DH.05 | Leucophanite | NaCaBeSi2O6F |
| 9.DH.10 | Ohmilite | Sr3(Ti,Fe3+)(Si4O12)(O,OH) · 2-3H2O |
| 9.DH.15 | Suzukiite | BaVSi2O7 |
| 9.DH.20 | Shcherbakovite | (K,Ba)KNa(Ti,Nb)2(Si4O12)O2 |
| 9.DH.20 | Batisite | BaNaNaTi2(Si4O12)O2 |
| 9.DH.20 | Noonkanbahite | BaKNaTi2(Si4O12)O2 |
| 9.DH.25 | Taikanite | Sr3BaMn2+2(Si4O12)O2 |
| 9.DH.30 | Krauskopfite | BaSi2O5 · 3H2O |
| 9.DH.35 | Gageite | Mn21(Si4O12)2O3(OH)20 |
| 9.DH.35 | Balangeroite | (Mg,Fe2+,Fe3+,Mn2+)42Si16O54(OH)40 |
| 9.DH.40 | Kuratite | Ca2(Fe2+5Ti)O2[Si4Al2O18] |
| 9.DH.40 | Aenigmatite | Na4[Fe2+10Ti2]O4[Si12O36] |
| 9.DH.40 | Dorrite | Ca4(Mg3Fe3+9)O4(Si3Al8Fe3+O36) |
| 9.DH.40 | Serendibite | Ca4[Mg6Al6]O4[Si6B3Al3O36] |
| 9.DH.40 | Rhönite | Ca4[Mg8Fe3+2Ti2]O4[Si6Al6O36] |
| 9.DH.40 | Khesinite | Ca4(Mg3Fe3+9)O4(Fe3+9Si3)O36 |
| 9.DH.40 | 'UM1991-29-SiO:FeMgNa' | Na4(Mg5Fe3+7)O4[Si9Fe3+3O36] |
| 9.DH.40 | Høgtuvaite | Ca4[Fe2+6Fe3+6]O4[Si8Be2Al2O36] |
| 9.DH.40 | 'Leucorhönite' | Ca2(Mg,Fe3+,Al)6(Si,Al)6O20 |
| 9.DH.40 | Welshite | Ca4Mg9Sb3O4[Si6Be3AlFe2O36] |
| 9.DH.40 | Wilkinsonite | Na2Fe2+4Fe3+2(Si6O18)O2 |
| 9.DH.40 | Krinovite | Na2Mg4Cr3+2(Si6O18)O2 |
| 9.DH.40 | Makarochkinite | (Ca,Na)4[Fe2+8Fe3+2Ti2]O4[Si8Be2Al2O36] |
| 9.DH.45 | Sapphirine | Mg4(Mg3Al9)O4[Si3Al9O36] |
| 9.DH.50 | Khmaralite | (Mg,Al,Fe)16[(Al,Si,Be)12O36]O4 |
| 9.DH.55 | 'UM1988-26-SiO:AlMg' | Mg4Al2O[Si3Al2O15] |
| 9.DH.55 | Surinamite | (Mg,Fe)3Al4BeSi3O16 |
| 9.DH.60 | Deerite | Fe2+6Fe3+3(Si6O17)O3(OH)5 |
| 9.DH.65 | Taneyamalite | (Na,Ca)Mn2+12(Si,Al)12(O,OH)44 |
| 9.DH.65 | Howieite | Na(Fe2+,Fe3+,Al,Mg)12(Si6O17)2(O,OH)10 |
| 9.DH.70 | Johninnesite | Na2Mn2+9Mg7(OH)8[AsO4]2[Si6O17]2 |
| 9.DH.75 | Agrellite | NaCa2Si4O10F |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Haradaite
mindat.org URL:
https://www.mindat.org/min-1817.html
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Please feel free to link to this page.
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References for Haradaite
Reference List:
ITO, JUN (1965) Synthesis of vanadium silicates: haradaite, goldmanite and roscoelite. Mineralogical Journal, 4 (4). 299-316 doi:10.2465/minerj1953.4.299
Takéuchi, Yoshio, Joswig, Werner (1967) The structure of haradaite and a note on the Si-O bond lengths in silicates. Mineralogical Journal, 5 (2) 98-123 doi:10.2465/minerj1953.5.98
WATANABE, Takeo, KATO, Akira, ITO, Jun, YOSHIMURA, Toyofumi, MOMOI, Hitoshi, FUKUDA, Koji (1982) Haradaite, Sr2V24+(O2|Si4O12), from the Noda-Tamagawa mine, Iwate Prefecture and the Yamato mine, Kagoshima Prefecture, Japan. Proceedings of the Japan Academy, Series B, 58 (2). 21-24 doi:10.2183/pjab.58.21
Localities for Haradaite
Showing 3 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Italy | |
| Palenzona (1986) +1 other reference |
Japan | |
| Collection of NHM +2 other references |
| Chem.Index Min. (1963) +1 other reference |
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Gambatesa Mine, Reppia, Ne, Genoa, Liguria, Italy