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Tsugaruite

Big Photo

Yunosawa Mine, Minami-Tsugara-gun, Aomori Prefecture, Tohoku Region, Honshu Island, Japan
© JF Carpentier 2007

Formula:
Pb
 
4
As
 
2
S
 
7
System:OrthorhombicColour:Lead-gray
Lustre:MetallicHardness:2½ - 3
Name:Named after the discovery locality, Yunosawa Mine, Tsugaru-gun, Aomori Prefecture, Japan.
This page provides mineralogical data about Tsugaruite.

Classification of Tsugaruite

IMA status:Approved 1997
Strunz 8th edition ID:2/E.15-45
Nickel-Strunz 10th (pending) edition ID:2.JB.30c

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
J : Sulfosalts of PbS archetype
B : Galena derivatives, with Pb
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Type Occurrence of Tsugaruite

Type Locality:Yunosawa Mine, Minami-Tsugara-gun, Aomori Prefecture, Tohoku Region, Honshu Island, Japan

Physical Properties of Tsugaruite

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Colour:Lead-gray
Streak:Lead-gray
Hardness (Mohs):2½ - 3

Crystallography of Tsugaruite

Crystal System:Orthorhombic

Chemical Properties of Tsugaruite

Formula:
Pb
 
4
As
 
2
S
 
7
Essential elements:As, Pb, S
All elements listed in formula:As, Pb, S

Relationship of Tsugaruite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
2.JB.05Diaphorite
Ag
 
3
Pb
 
2
Sb
 
3
S
 
8
2.JB.10Cosalite
Pb
 
2
Bi
 
2
S
 
5
2.JB.15Freieslebenite
AgPbSbS
 
3
2.JB.15Marrite
AgPbAsS
 
3
2.JB.20Cannizzarite
Pb
 
4
Bi
 
6
S
 
13
2.JB.20Wittite
Pb
 
9
Bi
 
12
(S,Se)
 
27
2.JB.25aJunoite
Cu
 
2
Pb
 
3
Bi
 
8
(S,Se)
 
16
2.JB.25iNeyite
Pb
 
7
(Cu,Ag)
 
2
Bi
 
6
S
 
17
2.JB.25cNordströmite
CuPb
 
3
Bi
 
7
(Se
 
4
S
 
10
)
2.JB.25gNuffieldite
Pb
 
2
Cu(Pb,Bi)Bi
 
2
S
 
7
2.JB.25dProudite
CuPb
 
7.5
Bi
 
9.33
(S,Se)
 
22
2.JB.25hWeibullite
Pb
 
5
Bi
 
8
Se
 
7
S
 
11
2.JB.25bFelbertalite
Cu
 
2
Pb
 
6
Bi
 
8
S
 
19
2.JB.25jRouxelite
Cu
 
2
HgPb
 
23
Sb
 
27
S
 
65.5
2.JB.25fAngelaite
Cu
 
2
AgPbBiS
 
4
2.JB.30aGeocronite
Pb
 
14
(Sb,As)
 
6
S
 
23
2.JB.30aJordanite
Pb
 
14
(As,Sb)
 
6
S
 
23
2.JB.30bKirkiite
Pb
 
10
Bi
 
3
As
 
3
S
 
19
2.JB.35cPillaite
Pb
 
9
Sb
 
10
S
 
23
ClO
 
0.5
2.JB.35aZinkenite
Pb
 
9
Sb
 
22
S
 
42
2.JB.35bScainiite
Pb
 
14
Sb
 
30
S
 
54
O
 
5
2.JB.35dPellouxite
(Cu,Ag)Pb
 
10
Sb
 
12
S
 
27
O(Cl,S)
 
0.6
2.JB.40bAschamalmite
Pb
 
6
Bi
 
2
S
 
9
2.JB.40aBursaite
Pb
 
5
Bi
 
4
S
 
11
2.JB.40bEskimoite
Ag
 
7
Pb
 
10
Bi
 
15
S
 
36
2.JB.40aFizélyite
Pb
 
14
Ag
 
5
Sb
 
21
S
 
48
 ?
2.JB.40aGustavite
Ag
 
3
Pb
 
5
Bi
 
11
S
 
24
2.JB.40aLillianite
Pb
 
3
Bi
 
2
S
 
6
2.JB.40cOurayite
Ag
 
3
Pb
 
4
Bi
 
5
S
 
13
2.JB.40aRamdohrite
Ag
 
3
Pb
 
6
Sb
 
11
S
 
24
2.JB.40aRoshchinite
Ag
 
19
Pb
 
10
Sb
 
51
S
 
96
2.JB.40Schirmerite
AgPb
 
2
Bi
 
3
S
 
7
2.JB.40aTreasurite
Ag
 
7
Pb
 
6
Bi
 
15
S
 
32
2.JB.40aUchucchacuaite
AgMnPb
 
3
Sb
 
5
S
 
12
2.JB.40eUstarasite
Pb(Bi,Sb)
 
6
S
 
10
 (?)
2.JB.40aVikingite
Ag
 
5
Pb
 
8
Bi
 
13
S
 
30
2.JB.40aXilingolite
Pb
 
3
Bi
 
2
S
 
6
2.JB.40bHeyrovskýite
Pb
 
10
AgBi
 
5
S
 
18
2.JB.40aAndorite IV
Pb
 
18
Ag
 
15
Sb
 
47
S
 
96
2.JB.40aAndorite VI
PbAgSb
 
3
S
 
6
2.JB.55Gratonite
Pb
 
9
As
 
4
S
 
15
2.JB.60Marrucciite
Hg
 
3
Pb
 
16
Sb
 
18
S
 
46
2.JB.65Vurroite
Pb
 
20
Sn
 
2
(Bi,As)
 
22
S
 
54
Cl
 
6

Other Names for Tsugaruite

Synonyms:
IMA1997-010
Other Languages:
German:Tsugaruit
Spanish:Tsugaruita

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 Tsugaruite

Reference List:Shimizu, M., Miyawaki, R., Kato, A., Matsubara, S., Matsuyama, F. and Kiyota, K. (1998): Tsugaruite, Pb4As2S7, a new mineral species from the Yunosawa mine, Aomori Prefecture, Japan. Mineralogical Magazine: 62(6): 793-799.

Articles/Blogs about Tsugaruite

Internet Links for Tsugaruite

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    Localities for Tsugaruite

    (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.
    Japan
     
    • Honshu Island
      • Tohoku Region
        • Aomori Prefecture
          • Minami-Tsugara-gun
    		Min.Mag. (1998) 62, 793-79 [AmMin 84:992]
    Mineral and/or Locality
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