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Haradaite

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Big Photo

Valgraveglia Mine (Gambatesa Mine), Reppia, Graveglia Valley, Ne, Genova Province, Liguria, Italy
© D. Preite

Show Haradaite Photos (6)



Formula:
SrVSi
 
2
O
 
7
System:OrthorhombicHardness:4½
Name:Named after Dr. Zyumpei Harada, Emeritus Professor of Hokkaido University, who has eminently contributed to the studies on minerals in Japan.


Haradaite Group.

Classification of Haradaite

IMA status:Approved
Strunz 8th edition ID:8/F.26-10
Nickel-Strunz 10th (pending) edition ID:9.DH.15

9 : SILICATES (Germanates)
D : Inosilicates
H : Inosilicates with 4-periodic single chains, Si4O12
Dana 8th edition ID:65.3.1.1

65 : INOSILICATES Single-Width,Unbranched Chains,(W=1)
3 : Single-Width Unbranched Chains, W=1 with chains P=4
Hey's CIM Ref.:14.14.4

14 : Silicates not Containing Aluminum
14 : Silicates of V and Bi
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Type Occurrence of Haradaite

Type Locality:Yamato mine, Amami-Oshima Island, Kagoshima Prefecture, Nansei Archipelago, Kyushu Region, Japan
Year of Discovery:1974

Physical Properties of Haradaite

Hardness (Mohs):4½

Crystallography of Haradaite

Crystal System:Orthorhombic

Optical Data of Haradaite

Type:Biaxial
RI values: nα = 1.713 nβ = 1.721 nγ = 1.734
2V:Measured: 90° , Calculated: 78°
Maximum Birefringence:δ = 0.021

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:High
Dispersion:weak

Chemical Properties of Haradaite

Formula:
SrVSi
 
2
O
 
7
Essential elements:O, Si, Sr, V
All elements listed in formula:O, Si, Sr, V
Common Impurities:Ti,Al,Fe,Mn,Cu,Pb,Ca,Ba,Na,K

Relationship of Haradaite to other Species

Structurally related to group(s):
Haradaite Group
MVSi
 
2
O
 
7
Related Minerals - Nickel-Strunz Grouping):

- +
9.DH.05Leucophanite
NaCaBeSi
 
2
O
 
6
F
9.DH.10Ohmilite
Sr
 
3
(Ti,Fe
3+
 
)(Si
 
4
O
 
12
)(O,OH) · 2-3H
 
2
O
9.DH.15Suzukiite
BaVSi
 
2
O
 
7
9.DH.20Batisite
BaNaNaTi
 
2
(Si
 
4
O
 
12
)O
 
2
9.DH.20Shcherbakovite
(K,Ba)KNa(Ti,Nb)
 
2
(Si
 
4
O
 
12
)O
 
2
9.DH.25Taikanite
Sr
 
3
BaMn
2+
2
(Si
 
4
O
 
12
)O
 
2
9.DH.30Krauskopfite
BaSi
 
2
O
 
5
 · 3H
 
2
O
9.DH.35Balangeroite
(Mg,Fe,Fe,Mn)
 
42
Si
 
16
O
 
54
(OH)
 
40
9.DH.35Gageite
Mn
 
21
O
 
3
(Si
 
4
O
 
12
)
 
2
(OH)
 
20
9.DH.40Aenigmatite
Na
 
2
Fe
2+
5
Ti(Si
 
6
O
 
18
)O
 
2
9.DH.40Dorrite
Ca
 
2
(Mg,Fe
2+
 
)
 
2
Fe
3+
4
[O
 
2
|Al
 
4
Si
 
2
O
 
18
]
9.DH.40Høgtuvaite
(Ca,Na)
 
2
(Fe
2+
 
,Fe
3+
 
,Ti)
 
6
[O
 
2
|Be(Si,Al)
 
5
O
 
18
]
9.DH.40Krinovite
Na
 
2
Mg
 
4
Cr
3+
2
(Si
 
6
O
 
18
)O
 
2
9.DH.40Makarochkinite
Ca
 
2
Fe
2+
4
Fe
3+
 
Ti[O
 
2
|BeAlSi
 
4
O
 
18
]
9.DH.40Rhönite
Ca
 
2
(Mg,Fe
2+
 
,Fe
3+
 
,Ti)
 
6
[O
 
2
|(Si,Al)
 
6
O
 
18
]
9.DH.40Serendibite
(Ca,Na)
 
2
(Mg,Fe
2+
 
)
 
3
(Al,Fe
3+
 
)
 
3
[O
 
2
|(Si,Al,B)
 
6
O
 
18
]
9.DH.40Welshite
Ca
 
4
Mg
 
9
Sb
 
3
O
 
4
[Si
 
6
Be
 
3
AlFe
 
2
O
 
36
]
9.DH.40Wilkinsonite
Na
 
2
Fe
2+
4
Fe
3+
2
(Si
 
6
O
 
18
)O
 
2
9.DH.45Sapphirine
(Mg,Fe)
 
4-x
Al
 
4+x
[Al
 
4+x
Si
 
2-x
O
 
18
]O
 
2
9.DH.50Khmaralite
(Mg,Al,Fe)
 
16
[(Al,Si,Be)
 
12
O
 
36
]O
 
4
9.DH.55Surinamite
(Mg,Fe)
 
3
Al
 
4
BeSi
 
3
O
 
16
9.DH.60Deerite
(Fe,Mn)
 
6
(Fe,Al)
 
3
[Si
 
6
O
 
17
]O
 
3
(OH)
 
5
9.DH.65Howieite
Na(Fe,Mn)
 
10
(Fe,Al)
 
2
Si
 
12
O
 
31
(OH)
 
13
9.DH.65Taneyamalite
(Na,Ca)(Mn,Mg,Fe)
 
12
Si
 
12
(O,OH)
 
44
9.DH.70Johninnesite
Na
 
2
Mn
2+
9
Mg
 
7
(OH)
 
8
[AsO
 
4
]
 
2
[Si
 
6
O
 
17
]
 
2
9.DH.75Agrellite
NaCa
 
2
Si
 
4
O
 
10
F
Related Minerals - Hey's Index Grouping:

- +
14.14.1Cavansite
Ca(VO)Si
 
4
O
 
10
 · 4H
 
2
O
14.14.2Pentagonite
Ca(VO)Si
 
4
O
 
10
 · 4H
 
2
O
14.14.3Goldmanite
Ca
 
3
V
3+
2
(SiO
 
4
)
 
3
14.14.5Saneroite
Na
 
2
(Mn,Mn)
 
10
Si
 
11
VO
 
34
(OH)
 
4
14.14.6Erlianite
(Fe,Mg)
 
4
(Fe,V)
 
2
Si
 
6
O
 
15
(OH,O)
 
8
14.14.7Eulytine
Bi
 
4
(SiO
 
4
)
 
3
14.14.8Bismutoferrite
Fe
3+
2
Bi(SiO
 
4
)
 
2
(OH)

Other Names for Haradaite

Synonyms:
IMA1963-011
Other Languages:
German:Haradait
Russian:Харадаит
Spanish:Haradaita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Haradaite

Reference List:

- +
American Mineralogist: 56: 1123.

American Mineralogist: 60: 340.

Neues Jahrbuch für Mineralogie, Monatshefte (1995): 281-288.

Mineralogical Journal: 5: 98-123.

Internet Links for Haradaite

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  • Raman and XRD data at RRUFF project
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    • Localities for Haradaite

    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
    Hide Locality List
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Italy
     
    • Liguria
      • Genova Province
        • Ne
          • Graveglia Valley
            • Reppia
    		Palenzona A. (1986) - Palenzonaite, Gamagarite ed Haradaite, Val Graveglia, Liguria - Riv Min. It, Milano, n. 1, 1986 pp. 13-16
    Japan
     
    • Honshu Island
      • Tohoku Region
        • Iwate Prefecture
          • Noda
    		Collection of NHM, Vienna; Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols
    • Kyushu Region
      • Nansei Archipelago
        • Kagoshima Prefecture
          • Amami-Oshima Island
    		Chem.Index Min.(1963) 2nd ed., appendix pp. 57 and 104, Min.Journ.Japan (1982) 11, 15-20
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