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Proto-ferro-suenoite

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Formula:
☐{Mn
2+
2
}{Fe
2+
5
}(Si
 
8
O
 
22
)(OH)
 
2
Suenoite has Mn as the dominant in the B position. It is a orthorhombic amphiboles in the magnesium-iron-manganese amphibole subgroup. The minerals in this root name group may have either Pnma or Pnmn (proto- prefixed name) space group symmetry. The suenoite is defined with A(Na+K+2Ca)<0.5 apfu and C(Al+Fe3++2Ti)<1 apfu.

Proto-ferro-suenoite is defined with Pnmn symmetry and and Fe2+ as the dominant element in the C position.
System:OrthorhombicColour:White to brownish-grey.
Lustre:VitreousHardness:5½ - 6
Member of:Magnesium-iron-manganese Amphibole Subgroup > w(OH, F, Cl)-dominant Amphibole Group > Amphibole Supergroup
Name:Named after Professor Shigeho Sueno (1937–2001), Professor
of Mineralogy at the University of Tsukuba and fellow of the Mineralogical Society of America
This page provides mineralogical data about Proto-ferro-suenoite.

Classification of Proto-ferro-suenoite

IMA status:Approved
Strunz 8th edition ID:8/F.12-160
Nickel-Strunz 10th (pending) edition ID:9.DD.05

9 : SILICATES (Germanates)
D : Inosilicates
D : Inosilicates with 2-periodic double chains, Si4O11; Orthoamphiboles
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Type Occurrence of Proto-ferro-suenoite

Type Locality:Nippyo mine (Yokoneyama), Awano, Kanuma City, Tochigi Prefecture, Kanto Region, Honshu Island, Japan

Physical Properties of Proto-ferro-suenoite

Lustre:Vitreous
Colour:White to brownish-grey.
Streak:White to greyish-white
Hardness (Mohs):5½ - 6

Crystallography of Proto-ferro-suenoite

Crystal System:Orthorhombic

Optical Data of Proto-ferro-suenoite

Type:Biaxial (-)
RI values: nα = 1.695 nβ = 1.714 nγ = 1.731
Maximum Birefringence:δ = 0.036

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

Chemical Properties of Proto-ferro-suenoite

Formula:
☐{Mn
2+
2
}{Fe
2+
5
}(Si
 
8
O
 
22
)(OH)
 
2


Suenoite has Mn as the dominant in the B position. It is a orthorhombic amphiboles in the magnesium-iron-manganese amphibole subgroup. The minerals in this root name group may have either Pnma or Pnmn (proto- prefixed name) space group symmetry. The suenoite is defined with A(Na+K+2Ca)<0.5 apfu and C(Al+Fe3++2Ti)<1 apfu.

Proto-ferro-suenoite is defined with Pnmn symmetry and and Fe2+ as the dominant element in the C position.
Simplified for copy/paste:☐{Mn2+2}{Fe2+5}(Si8O22)(OH)2
Essential elements:Fe, H, Mn, O, Si
All elements listed in formula:Fe, H, Mn, O, Si

Relationship of Proto-ferro-suenoite to other Species

Member of:Magnesium-iron-manganese Amphibole Subgroup > w(OH, F, Cl)-dominant Amphibole Group > Amphibole Supergroup
Other Members of Group:

- +
Anthophyllite Root Name
☐{X
 
2
}{Z
 
5
}(Si
 
8
O
 
22
)(OH)
 
2
Cummingtonite
☐{Mg
 
2
}{Mg
 
5
}(Si
 
8
O
 
22
)(OH)
 
2
Gedrite Root Name
☐{X
2+
2
}{Z
2+
3
Z
3+
2
}(Al
 
2
Si
 
6
O
 
22
)(OH)
 
2
Grunerite
☐{Fe
2+
2
}{Fe
2+
5
}(Si
 
8
O
 
22
)(OH)
 
2
Manganocummingtonite
☐{Mn
2+
2
}{Mg
 
5
}(Si
 
8
O
 
22
)(OH)
 
2
Manganogrunerite
☐{Mn
2+
2
}{Fe
2+
5
}(Si
 
8
O
 
22
)(OH)
 
2
Sodic-ferro-anthophyllite
{Na}{Fe
2+
2
}{Fe
2+
5
}(AlSi
 
7
O
 
22
)(OH)
 
2
Sodic-ferrogedrite
{Na}{Fe
2+
2
}{Fe
2+
3
Al
 
2
}(Al
 
3
Si
 
5
O
 
22
)(OH)
 
2
Sodicanthophyllite
{Na}{Mg
 
2
}{Mg
 
5
}(AlSi
 
7
O
 
22
)(OH)
 
2
Sodicgedrite
{Na}{Mg
 
2
}{Mg
 
3
Al
 
2
}(Al
 
3
Si
 
5
O
 
22
)(OH)
 
2
Related Minerals - Nickel-Strunz Grouping):

- +
9.DD.05Ferro-anthophyllite
☐{Fe
2+
2
}{Fe
2+
5
}(Si
 
8
O
 
22
)(OH)
 
2
9.DD.05Ferro-gedrite
☐{Fe
2+
2
}{Fe
2+
3
Al
 
2
}(Al
 
2
Si
 
6
O
 
22
)(OH)
 
2
9.DD.05Gedrite
☐{Mg
 
2
}{Mg
 
3
Al
 
2
}(Al
 
2
Si
 
6
O
 
22
)(OH)
 
2
9.DD.05Holmquistite
☐{Li
 
2
}{Mg
 
3
Al
 
2
}(Si
 
8
O
 
22
)(OH)
 
2
9.DD.05Sodicanthophyllite
{Na}{Mg
 
2
}{Mg
 
5
}(AlSi
 
7
O
 
22
)(OH)
 
2
9.DD.05Sodic-ferro-anthophyllite
{Na}{Fe
2+
2
}{Fe
2+
5
}(AlSi
 
7
O
 
22
)(OH)
 
2
9.DD.05Sodic-ferrogedrite
{Na}{Fe
2+
2
}{Fe
2+
3
Al
 
2
}(Al
 
3
Si
 
5
O
 
22
)(OH)
 
2
9.DD.05Sodicgedrite
{Na}{Mg
 
2
}{Mg
 
3
Al
 
2
}(Al
 
3
Si
 
5
O
 
22
)(OH)
 
2
9.DD.05Ferro-holmquistite
☐{Li
 
2
}{Fe
2+
3
Al
 
2
}(Si
 
8
O
 
22
)(OH)
 
2
9.DD.05Proto-anthophyllite
☐{Mg
 
2
}{Mg
 
5
}(Si
 
8
O
 
22
)(OH)
 
2

Other Names for Proto-ferro-suenoite

Synonyms:
IMA1986-007
Other Languages:
Japanese:プロトマンガノ鉄直閃石
Russian:Протоманганоферроантофиллит

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 Proto-ferro-suenoite

Reference List:

- +
Physics and Chemistry of Minerals: 25: 366-377.

American Mineralogist (1999): 84: 196.

Sueno, S., Matsuura, S., Bunno, M., and Kurosawa, M. (2002) Occurrence and crystal chemical features of protoferro-anthophyllite and protomangano-ferroanthophyllite from Cheyenne Canyon and Cheyenne Mountain, U.S.A. and Hirukawa-mura, Suisho-yama, and Yokone-yama, Japan. Journal of Mineralogical and Petrological Sciences: 97: 127-136.

Hawthorne, Frank C., and Roberta Oberti (2006), On the classification of amphiboles: Canadian Mineralogist:
44(1): 1-21.

Frank C. Hawthorne, Roberta Oberti, George E. Harlow, Walter V. Maresch, Robert F. Martin, John C. Schumacer, Mark D. Welch (2012): Nomenclature of the amphibole supergroup, American Mineralogist, Volume 97, pages 2031–2048

Best Localities for Proto-ferro-suenoite

Best of Species:Proto-ferro-suenoite

Internet Links for Proto-ferro-suenoite

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  • Localities for Proto-ferro-suenoite

    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.
    (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
      • Kanto Region
        • Tochigi Prefecture
          • Kanuma City
            • Awano
    AmMin 84:196; Journal of Mineralogical and Petrological Sciences: 97: 127-136.; Sueno, S., Matsuura, S., Bunno, M., & Kurosawa, M. (2002). Occurrence and crystal chemical features of protoferro-anthophyllite and protomangano-ferro-anthophyllite from Cheyenne Canyon and Cheyenne Mountain, USA and Hirukawa-mura, Suisho-yama, and Yokone-yama, Japan. Journal of mineralogical and petrological sciences, 97(4), 127-136.
      • Tohoku Region
        • Fukushima Prefecture
          • Kawamata
            • Iizaka Village (Iisaka)
    Am.Min. 84: 196; Lapis 2002(11): 12; Journal of Mineralogical and Petrological Sciences: 97: 127-136.; Sueno, S., Matsuura, S., Bunno, M., & Kurosawa, M. (2002). Occurrence and crystal chemical features of protoferro-anthophyllite and protomangano-ferro-anthophyllite from Cheyenne Canyon and Cheyenne Mountain, USA and Hirukawa-mura, Suisho-yama, and Yokone-yama, Japan. Journal of mineralogical and petrological sciences, 97(4), 127-136.
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