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Mineralogical ClassificationNew minerals 2012 approved by IMA CNMNC - February-May 2012

22nd Jun 2012 10:27 UTCMarco E. Ciriotti Manager

New mineral proposals approved in February 2012

IMA No. 2011-091

Rumseyite

Pb2OClF

Torr Works (Merehead) Quarry, East Cranmore,

Somerset, England

R.W. Turner*, O.I. Siidra, S.V. Krivovichev,

C.J. Stanley, and J. Spratt

*E-mail: rturner@imbuia-holdings.com

Aurivillius structure type

Tetragonal: I4/mmm; structure determined
a = 4.065(1), c = 12.631(7) A ˚

6.306(17), 3.848(41), 2.923(100), 2.875(68),

2.110(12), 2.049(10), 1.719(9), 1.680(14)

Type material is deposited in the collections of

the Natural History Museum, London, UK,

catalogue number BM1970,110

How to cite: Turner, R.W., Siidra, O.I.,

Krivovichev, S.V., Stanley, C.J. and Spratt. J.

(2012) Rumseyite, IMA 2011-091. CNMNC

Newsletter No. 13, June 2012, page 808;

Mineralogical Magazine, 76, 807-817.

IMA No. 2011-096

Fuxiaotuite

Ca2Cu9(AsO4)4(SO4)0.5(OH)9·9H2O

Tangdan and Nanniping mines, Dongchuan

copper mining district, Yao’an County,

Cuxiong Autonomous Prefecture, Yunnan

Province, People’s Republic of China (26º11’N

103º51’E)

Jeffrey de Fourestier*, Li Guowu, Glenn Poirier,

Nikita V. Chukanov and Ma Zhesheng

*E-mail: jeffrey.defourestier@forces.gc.ca

Closely related to tyrolite

Monoclinic: C2/c; structure determined
a = 54.490(9), b = 5.5685(9), c = 10.4690(17) A ˚ ,

beta = 96.294(3)º

5.263(54), 4.782(100), 4.333(71), 3.949(47),

2.976(46), 2.631(41), 2.368(29), 1.744(24)

Type material is deposited in the collections of

the Crystal Structure Laboratory, China

University of Geosciences, Beijing 100083,

People’s Republic of China, catalogue number

TD1

How to cite: de Fourestier, J., Li, G., Poirier, G.,

Chukanov, N.V. and Ma, Z. (2012) Fuxiaotuite,

IMA 2011-096. CNMNC Newsletter No. 13,

June 2012, page 808; Mineralogical Magazine,

76, 807-817.

IMA No. 2011-097

Oxy-chromium-dravite

NaCr3(Cr4Mg2)(Si6O18)(BO3)3(OH)3O

Pereval marble quarry, Sludyanka, Irkutsk

region, Siberia, Russia (51º37’N 103º38’E)

Ferdinando Bosi*, Leonid Rezeniskii and

Henrik Skogby

*E-mail: ferdinando.bosi@uniroma1.it

Tourmaline supergroup

Trigonal: R3m; structure determined
a = 16.0539(7), c = 7.3247(5) A ˚

6.480(62), 4.634(24), 4.270(44), 4.014(63),

3.542(50), 3.005(60), 2.600(100), 2.063(47)

Type material is deposited in the collections of

the Museum of Mineralogy, Earth Sciences

Department, Sapienza University of Rome,

Rome, Italy, catalogue number 33064

How to cite: Bosi, F., Rezeniskii, L. and

Skogby, H. (2012) Oxy-chromium-dravite,

IMA 2011-097. CNMNC Newsletter No. 13,

June 2012, page 808; Mineralogical Magazine,

76, 807-817.

IMA No. 2011-098

Debattistiite

Ag9Hg0.5As6S12Te2

Lengenbach quarry, Binn Valley, Valais,

Switzerland

Alessandro Guastoni*, Luca Bindi and Fabrizio

Nestola

*E-mail: alessandro.guastoni@unipd.it

New structure type

Triclinic: P1¯ ; structure determined
a = 7.832(5), b = 8.606(4), c = 10.755(5) A ˚ , alpha =

95.563(9), beta = 95.880(5), gamma = 116.79(4)º

10.56(100), 7.582(4), 5.736(3), 4.038(3),

3.367(3), 3.301(4), 2.742(7), 2.733(7)

Type material is deposited in the collections of

the Museum of Mineralogy of the Department

of Geosciences at the University of Padova,

Italy, catalogue number MMP M10680

How to cite: Guastoni, A., Bindi, L. and

Nestola, F. (2012) Debattistiite, IMA 2011-

098. CNMNC Newsletter No. 13, June 2012,

page 808; Mineralogical Magazine, 76,

807-817.

IMA No. 2011-099

Takanawaite-(Y)

YTaO4

Takanawa Mountain, Matsuyama City, Ehime

Prefecture, Shikoku, Japan (33º56’N 132º51’E)

Daisuke Nishio-Hamane*, Tetsuo Minakawa

and Yukikazu Ohgoshi

*E-mail: hamane@issp.u-tokyo.ac.jp

Polymorph of iwashiroite-(Y), formanite-(Y)

and yttrotantalite-(Y)

Monoclinic: I2/a; structure determined
a = 5.3182(7), b = 10.957(1), c = 5.0597(7) A ˚ ,

beta = 94.99(1)º

3.133(100), 2.953(85), 2.739(29), 2.649(21),

1.912(24), 1.905(39), 1.855(26), 1.573(18)

Type material is deposited in the collections of

the National Museum of Nature and Science,

Tokyo, Japan, specimen number NSM M-43517

How to cite: Nishio-Hamane, D., Minakawa, T.

and Ohgoshi, Y. (2012) Takanawaite-(Y), IMA

2011-099. CNMNC Newsletter No. 13, June

2012, page 808; Mineralogical Magazine, 76,

807-817.

IMA No. 2011-100

Forêtite

Cu2Al2(AsO4)(OH,O,H2O)6

Cap Garonne mine, Var, Provence-Alpes-Côte d’Azur, France

Stuart J. Mills*, Anthony R. Kampf, Andrew M.

McDonald, Georges Favreau and Pierre-Jacques

Chiappero

*E-mail: smills@museum.vic.gov.au

New structure type

Triclinic: P1¯ ; structure determined
a = 6.969(9), b = 7.676(9), c = 8.591(11) A ˚ ,

alpha = 82.01(9), beta = 71.68(8), gamma = 102.68(8)º

7.307(100), 4.519(23), 4.277(18), 3.455(17),

3.141(24), 2.818(24), 2.719(20), 2.343(22)

Type material is deposited in the collections of

the Natural History Museum of Los Angeles

County, Los Angeles, USA, catalogue numbers

63573, 63574, 63575, 63576 and 63577,

Museum Victoria, Melbourne, Australia, registration

number M51746, and the Muse´um

National d’Histoire Naturelle, Paris, France,

catalogue number 211.58

How to cite: Mills, S.J., Kampf, A.R.,

McDonald, A.M., Favreau, G. and Chiappero,

P.-J. (2012) Foreˆtite, IMA 2011-100. CNMNC

Newsletter No. 13, June 2012, page 809;

Mineralogical Magazine, 76, 807-817.

IMA No. 2011-101

Phosphovanadylite-Ca

Ca·12H2O

South Rasmussen Ridge phosphate mine, Soda

Springs, Caribou County, Idaho, USA (42º51’N, 111º21’W)

Anthony R. Kampf*, Barbara P. Nash and

Thomas A. Loomis

*E-mail: akampf@nhm.org

Ca analogue of phosphovanadylite

Cubic: I4¯ 3m; structure determined
a = 15.441(11) A ˚

11.04(97), 7.788(100), 4.487(14), 3.171(46),

2.749(32), 2.458(14), 2.343(15), 1.830(16)

Type material is deposited in the collections of

the Natural History Museum of Los Angeles

County, 900 Exposition Boulevard, Los

Angeles, CA 90007, USA, catalogue numbers

63578, 63579, 63580, 63581 and 63582

How to cite: Kampf, A.R., Nash, B.P. and

Loomis, T.A. (2012) Phosphovanadylite-Ca,

IMA 2011-101. CNMNC Newsletter No. 13,

June 2012, page 809; Mineralogical Magazine,

76, 807-817.

IMA No. 2011-103

Hydrokenomicrolite

(□,H2O)2Ta2(O,OH)6(H2O)

Volta Grande pegmatite, Nazareno, Minas

Gerais, Brazil

Marcelo B. Andrade, Daniel Atencio*, Nikita V.

Chukanov and Javier Ellena

*E-mail: datencio@usp.br

Pyrochlore supergroup

Cubic: Fd3¯ m; structure determined
a = 10.5733(9) A ˚

6.112(86), 3.191(52), 3.052(100), 2.642(28),

2.035(11), 1.869(29), 1.788(10), 1.594(24)

Type material is deposited in the collections of

the Museu de Geociências, Instituto de

Geociências, Universidade de São Paulo, São

Paulo, Brazil, registration number DR725

How to cite: Andrade, M.B., Atencio, D.,

Chukanov, N.V. and Ellena, J. (2012)

Hydrokenomicrolite, IMA 2011-103. CNMNC

Newsletter No. 13, June 2012, page 809;

Mineralogical Magazine, 76, 807-817.

IMA No. 2011-104

Saltonseaite

K3NaMnCl6

Salton Sea, Imperial County, California, USA

(33º07’N 115º41’W)

Anthony R. Kampf*, Stuart J. Mills, Fabrizio

Nestola and Anatoly Kasatkin

*E-mail: akampf@nhm.org

Mn analogue of rinneite

Trigonal: R3¯c; structure determined
a = 12.0966(5), c = 13.9555(10) A ˚

5.831(61), 3.498(25), 2.851(68), 2.689(32),

2.625(62), 2.542(100), 1.983(32), 1.384(22)

Type material is deposited in the collections of

the Natural History Museum of Los Angeles

County, Los Angeles, California, USA, catalogue

number 23604, and Museum Victoria,

Melbourne, Australia, catalogue number

M51615

How to cite: Kampf, A.R., Mills, S.J., Nestola,

F. and Kasatkin, A. (2012) Saltonseaite, IMA

2011-104. CNMNC Newsletter No. 13, June

2012, page 809; Mineralogical Magazine, 76,

807-817.

IMA No. 2011-105

Nashite

Na3Ca2(O28)·24H2O

Little Eva mine, Yellow Cat District, Grand

County, Utah, USA, and the St Jude mine, Slick

Rock district, San Miguel County, Colorado, USA

Anthony R. Kampf*, John M. Hughes, Joe

Marty and Francis Brown

*E-mail: akampf@nhm.org

New structure type

Monoclinic: P21/n; structure determined
a = 10.0099(3), b = 21.8472(7), c =

11.1504(7) A ˚ , beta = 116.584(8)º

10.995(46), 9.044(100), 8.350(64), 6.962(15),

5.526(17), 3.501(15), 2.994(13), 2.652(15)

Type material is deposited in the collections of

the Natural History Museum of Los Angeles

County, Los Angeles, California, USA, catalogue

numbers 63583 (holotype) and 63584

(Little Eva mine), and 63585, 63586 and 63587

(St Jude mine)

How to cite: Kampf, A.R., Hughes, J.M., Marty,

J. and Brown, F. (2012) Nashite, IMA 2011-105.

CNMNC Newsletter No. 13, June 2012, page

810; Mineralogical Magazine, 76, 807-817.

New mineral proposals approved in March 2012

IMA No. 2011-102

Luanshiweiite-2M1

KLiAl1.5(Si3.5Al0.5)O10(OH)2

#309 pegmatite vein, Guangpo, Lushi County,

Henan Province, China (33º52.480’N 110º42.760’E)

Fan Guang*, Li Guowu, Shen Ganfu, Xu Jinsha

and Dai Jie

*E-mail: fanguang2008@163.com

Mica group

Monoclinic: C2/c; structure determined
a = 5.1861(7), b = 8.9857 (13), c = 19.970(3) A ˚ ,

beta = 95.420(3)º

9.891(35), 4.451(31), 3.468(42), 3.314(36),

2.973(34), 2.565(100), 2.378(31), 1.986(30)

Type material is deposited in the collections of

the Geological Museum of China, Beijing,

China, registration number M11797

How to cite: Fan, G., Li, G., Shen, G., Xu, J. and

Dai, J. (2012) Luanshiweiite-2M1, IMA 2011-

102. CNMNC Newsletter No. 13, June 2012,

page 810; Mineralogical Magazine, 76,

807-817.

IMA No. 2011-106

Putnisite

SrCa4Cr3+8(CO3)8SO4(OH)16·23H2O

Polar Bear peninsula, Lake Cowan, Norseman,

Western Australia, Australia (121º49’E 31º56’S)

Peter Elliott*, Gerald Giester, Ralph Rowe and

Allan Pring

*E-mail: peter.elliott@adelaide.edu.au

New structure type

Orthorhombic: Pnma; structure determined
a = 15.351(3), b = 20.421(4), c = 18.270(4) A ˚

13.577(100), 7.659(80), 7.095(10), 5.084(19),

4.901(13), 3.385(7), 3.689(16), 3.594(7)

Type material is deposited in the collections of

the South Australian Museum, Adelaide, South

Australia, Australia, registration number

G33429, and the Canadian Museum of Nature,

Ottawa, Canada, catalogue number CMNMC

86133

How to cite: Elliott, P., Giester, G., Rowe, R.

and Pring, A. (2012) Putnisite, IMA 2011-106.

CNMNC Newsletter No. 13, June 2012, page

810; Mineralogical Magazine, 76, 807-817.

IMA No. 2011-107

Christofschäferite-(Ce)

(Ce,La,Ca)4Mn(Ti,Fe)3(Fe,Ti)(Si2O7)2O8

Wingertsberg, near Mendig, Laacher See area,

Eifel Mountains, Rhineland-Palatinate, Germany

Nikita V. Chukanov*, Sergey M. Aksenov,

Ramiza K. Rastsvetaeva, Dmitriy I.

Belakovskiy, Jörg Göttlicher, Sergey N.

Britvin and Konstantin V. Van

*E-mail: chukanov@icp.ac.ru

Mn2+-dominant member of the chevkinite group

Monoclinic: P21/m; structure determined
a = 13.3722(4), b = 5.7434(1), c = 11.0862(2) A ˚ ,

beta = 100.580(2)º

4.90(39), 4.64(65), 3.480(78), 3.169(81),

3.095(43), 2.730(100), 2.169(46), 1.737(46)

Type material is deposited in the collections of

the Fersman Mineralogical Museum of the

Russian Academy of Sciences, Moscow,

Russia, registration number 4227/1

How to cite: Chukanov, N.V., Aksenov, S.M.,

Rastsvetaeva, R.K., Belakovskiy, D.I.,

Göttlicher, J., Britvin, S.N. and Van, K.V.

(2012) Christofschäferite-(Ce), IMA 2011-107.

CNMNC Newsletter No. 13, June 2012, page

810; Mineralogical Magazine, 76, 807-817.

IMA No. 2011-108

Lusernaite-(Y)

Y4Al(CO3)2(OH)10F·6H2O

Seccarezze quarries, Luserna Valley, Luserna

San Giovanni, Torino, Piedmont, Italy

(44º45’80’’N 7º12’08’’E)

Cristian Biagioni*, Elena Bonaccorsi, Fernando

Ca´mara, Marcella Cadoni, Marco E. Ciriotti,

Danilo Bersani and Uwe Kolitsch

*E-mail: biagioni@dst.unipi.it

New structure type

Orthorhombic: Pmna; structure determined
a = 7.839(2), b = 11.023(2), c = 11.383(2) A ˚

11.02(100), 7.90(49), 6.41(15), 5.66(25),

5.06(24), 4.258(33), 3.195(27), 3.095(21)

Type material is deposited in the collections of

the Museo di Storia Naturale e del Territorio,

Universita` di Pisa, Calci (Pisa), Italy, catalogue

number 19445, and the Museo Regionale di

Scienze Naturali, Turin, Italy, catalogue number

15901

How to cite: Biagioni, C., Bonaccorsi, E.,

Cámara, F., Cadoni, M., Ciriotti, M.E.,

Bersani, D. and Kolitsch, U. (2012)

Lusernaite-(Y), IMA 2011-108. CNMNC

Newsletter No. 13, June 2012, page 811;

Mineralogical Magazine, 76, 807-817.

IMA No. 2011-109

Tubulite

Ag2Pb22Sb20S53

Rivet quarry, Peyrebrune ore field, Réalmont,

Tarn Department, France (43º45’42’’N

02º14’16’’E), and in the Veneziana and

Torinese galleries, Borgofranco mines

complex, Biò, Borgofranco d’Ivrea ore district,

Torino, Piedmont, Italy (45º31’07’’N 7º51’53’’E)

Y. Moëlo*, R. Pecorini, M. E. Ciriotti, N.

Meisser, M. Caldes-Rouillon, P. Orlandi, P.E.

Petit, B. Martini and A. Salvetti

*E-mail: Yves.Moëlo@cnrs-imn.fr

Zinkenite group

Monoclinic: Pc, P2/c or P21/c
a = 4.132(2), b = 43.1(2), c = 27.4(1) A ˚ ,

beta = 93.2(3)º

5.32(45), 3.99(35), 3.69(60), 3.36(100),

3.28(55), 2.99(55), 2.912(55), 2.063(75)

Type material is deposited in the collections of

the Museum of Mineralogy of the Ecole

Nationale Supérieure des Mines de Paris,

Paris, France, catalogue number M 82939, the

Museo Regionale di Scienze Naturali, Torino,

Italy, catalogue number 15905, the Museo di

Storia Naturale e del Territorio, Università di

Pisa, Calci (Pisa), Italy, catalogue number

19630, and the Musée Cantonal de Géologie,

Université-Anthropole, Lausanne, Switzerland,

catalogue number MGL#92635

How to cite: Moëlo, Y., Pecorini, R., Ciriotti,

M.E., Meisser, N., Caldes-Rouillon, M.,

Orlandi, P., Petit, P.E., Martini, B. and

Salvetti, A. (2012) Tubulite, IMA 2011-109.

CNMNC Newsletter No. 13, June 2012, page

811; Mineralogical Magazine, 76, 807-817.

IMA No. 2011-111

Fuettererite

PbFe3+7AlSi7O27·5H2O

NE2 vein, Otto Mountain, Baker, San

Bernardino County, California, USA

(35.27776ºN, 116.09331ºW)

Anthony R. Kampf*, Stuart J. Mills, Robert M.

Housley and Joseph Marty

*E-mail: akampf@nhm.org

New structure type

Hexagonal: R3¯
a = 8.4035(12), c = 44.681(4) A ˚

6.106(44), 3.733(100), 2.749(53), 2.669(49),

2.529(41), 1.964(87), 1.900(48), 1.584(44)

Type material is deposited in the collections of

the Mineral Sciences Department, Natural

History Museum of Los Angeles County, 900

Exposition Boulevard, Los Angeles, California

90007, USA, catalogue numbers 63588 and

63589

How to cite: Kampf, A.R., Mills, S.J., Housley,

R.M. and Marty, J. (2012) Fuettererite, IMA

2011-111. CNMNC Newsletter No. 13, June

2012, page 811; Mineralogical Magazine, 76,

807-817.

IMA No. 2011-112

Fluorchegemite

Ca7(SiO4)3F2

Upper Chegem volcanic caldera, Kabardino-

Balkaria, North Caucasus, Russia (43º17’N 43º6’E)

I.O. Galuskina*, B. Lazic, E.V. Galuskin, T.

Armbruster, V.M. Gazeev, R. Włodyka, A.E.

Zadov, M. Dulski and P. Dzierżanowski

*E-mail: irina.galuskina@us.edu.pl

F-dominant analogue of chegemite

Orthorhombic: Pbnm; structure determined
a = 5.0620(1), b = 11.3917(2), c = 23.5180(3) A ˚

3.636(52), 3.013(57), 2.991 (56), 2.832(51),

2.718(63), 2.699(46), 2.531(100), 1.905(95)

Type material is deposited in the collections of

the Fersman Mineralogical Museum of the

Russian Academy of Sciences, Moscow,

Russia, catalogue number 4163/1

How to cite: Galuskina, I.O., Lazic, B.,

Galuskin, E.V., Armbruster, T., Gazeev, V.M.,

Włodyka, R., Zadov, A.E., Dulski, M. and

Dzierżanowski, P. (2012) Fluorchegemite,

IMA 2011-112. CNMNC Newsletter No. 13,

June 2012, page 812; Mineralogical Magazine,

76, 807-817.

IMA No. 2011-113

Hydroxyledgrewite

Ca9(SiO4)4(OH)2

Upper Chegem volcanic caldera, Kabardino-

Balkaria, North Caucasus, Russia (43º17’N 43º6’E)

E.V. Galuskin*, T. Armbruster, N.N. Pertsev,

I.O. Galuskina, B. Lazic, V.M. Gazeev, R.

Włodyka, M. Dulski, P. Dzierżanowski, A.E.

Zadov and L. Dubrovinsky

*E-mail: evgeny.galuskin@us.edu.pl

OH-dominant analogue of edgrewite

Monoclinic: P21/b; structure determined
a = 5.0672(1), b = 11.3545(1), c = 15.3941(2) A ˚ ,

beta = 100.587(1)º

3.813(41), 3.028(100), 2.822(78), 2.764(65),

2.624(55), 1.906(52), 1.906(53), 1.890(55)

Type material is deposited in the collections of

the Fersman Mineralogical Museum of the

Russian Academy of Sciences, Moscow,

Russia, catalogue number 4164/1

How to cite: Galuskin, E.V., Armbruster, T.,

Pertsev, N.N., Galuskina, I.O., Lazic, B.,

Gazeev, V.M., Włodyka, R., Dulski, M.,

Dzierżanowski, P., Zadov, A.E. and

Dubrovinsky, L. (2012) Hydroxyledgrewite,

IMA 2011-113. CNMNC Newsletter No. 13,

June 2012, page 812; Mineralogical Magazine,

76, 807-817.

New mineral proposals approved in April 2012

IMA No. 2011-114

Vanackerite

Pb4Cd(AsO4)3(Cl,OH)

Tsumeb ore deposit, Tsumeb, Namibia

Jochen Schlüter*, Thomas Malcherek and

Georg Gebhard

*E-mail: Jochen.Schlueter@uni-hamburg.de

Related to apatite group structures

Trigonal: P3; structure determined
a = 10.032(1), c = 7.300(1) A ˚

4.140(10), 3.290(34), 2.982(100), 2.067(16),

1.944(11), 1.875(8), 1.635(10), 1.523(10)

Type material is deposited in the collections of

the Mineralogical Museum of the University of

Hamburg, Hamburg, Germany, registration

number TS 706

How to cite: Schlüter, J., Malcherek, T. and

Gebhard, G. (2012) Vanackerite, IMA 2011-

114. CNMNC Newsletter No. 13, June 2012,

page 812; Mineralogical Magazine, 76,

807-817.

IMA No. 2011-115

Agaite

Pb3CuTeO5(OH)2(CO3)

Aga mine, Otto Mountain, Baker, San

Bernardino County, California, USA

(35.27215ºN 116.09487ºW)

Anthony R. Kampf*, Stuart J. Mills, Robert M.

Housley and Joseph Marty

*E-mail: akampf@nhm.org

New structure type

Orthorhombic: Pca21; structure determined
a = 10.6522(7), b = 9.1630(5), c = 9.6011(7) A ˚

4.26(28), 4.165(14), 3.303(100), 2.747(68),

2.571(14), 2.081(21), 2.031(17), 1.747(40)

Type material is deposited in the collections of

the Mineral Sciences Department, Natural

History Museum of Los Angeles County, Los

Angeles, California, USA, catalogue number

63590

How to cite: Kampf, A.R., Mills, S.J., Housley,

R.M. and Marty, J. (2012) Agaite, IMA 2011-

115. CNMNC Newsletter No. 13, June 2012,

page 812; Mineralogical Magazine, 76,

807-817.

IMA No. 2012-002

Lahnsteinite

Zn4(SO4)(OH)6·3H2O

Friedrichssegen mine, Lahnstein, Lahn valley,

Rhineland-Palatinate, Germany (50º18’11’’N 7º40’17’’E)

Nikita V. Chukanov*, Ramiza K. Rastsvetaeva,

Sergey M. Aksenov, Igor V. Pekov, Dmitriy I.

Belakovskiy, Günter Blass and Gerhard Möhn

*E-mail: nikchukanov@yandex.ru

Chemically related to namuwite and osakaite

Triclinic: P1; structure determined
a = 8.3125(6), b = 14.545(1), c = 18.504(2) A ˚ ,

alpha = 89.71(1), beta = 90.05(1), gamma = 90.13(1)º

9.30(100), 4.175(18), 3.476(19), 3.290(19),

2.723(57), 2.624(36), 2.503(35), 1.574(25)

Type material is deposited in the collections of

the Fersman Mineralogical Museum of the

Russian Academy of Sciences, Moscow,

Russia, registration number 4252/1

How to cite: Chukanov, N.V., Rastsvetaeva,

R.K., Aksenov, S.M., Pekov, I.V., Belakovskiy,

D.I. , Blass, G. and Möhn, G. (2012)

Lahnsteinite, IMA 2012-002. CNMNC

Newsletter No. 13, June 2012, page 813;

Mineralogical Magazine, 76, 807-817.

IMA No. 2012-003

Yaroshevskite

Cu9O2(VO4)4Cl2

Yadovitaya fumarole, Second scoria cone,

Tolbachik volcano, Kamchatka peninsula,

Kamchatka Oblast’, Far-Eastern Region,

Russia (55º41’N 160º14’E)

Igor V. Pekov*, Michael E. Zelenski, Natalia V.

Zubkova, Vasiliy O. Yapaskurt, Yury S.

Polekhovsky and Dmitry Y. Pushcharovsky

*E-mail: igorpekov@mail.ru

New structure type

Triclinic: P1¯ ; structure determined
a = 6.4344(11), b = 8.3232(13), c = 9.1726(16)A ˚ ,

alpha =105.38(1), beta = 96.113(14), gamma = 107.642(1)º

8.65(100), 6.84(83), 6.01(75), 5.52(62),

4.965(55), 4.198(67), 4.055(65), 2.896(60)

Type material is deposited in the collections of

the Fersman Mineralogical Museum of the

Russian Academy of Sciences, Moscow,

Russia, registration number 4240/1

How to cite: Pekov, I.V., Zelenski, M.E.,

Zubkova, N.V., Yapaskurt, V.O., Polekhovsky,

Y.S. and Pushcharovsky, D.Y. (2012)

Yaroshevskite, IMA 2012-003. CNMNC

Newsletter No. 13, June 2012, page 813;

Mineralogical Magazine, 76, 807-817.

IMA No. 2012-005

Hydroxymanganopyrochlore

(Mn,Th,Na,Ca,REE)2(Nb,Ti)2O6(OH)

Dellen (Zieglowski) quarry, Mendig, Laacher

See area, Eifel region, Rheinland-Pfalz,

Germany

Nikita V. Chukanov*, Günter Blass, Natalia V.

Zubkova, Igor V. Pekov, Dmitry Y.

Pushcharovsky and Herbert Prinz

*E-mail: chukanov@icp.ac.ru

Pyrochlore supergroup

Cubic: Fd3¯ m; structure determined
a = 10.2523(2) A ˚

2.969(100), 2.569(40), 2.358(12), 1.816(47),

1.548(40), 1.481(14), 1.284(10), 1.178(14)

Type material is deposited in the collections of

the Fersman Mineralogical Museum of the

Russian Academy of Sciences, Moscow,

Russia, registration number 4226/1

How to cite: Chukanov, N.V., Blass, G.,

Zubkova, N.V., Pekov, I.V., Pushcharovsky,

D.Y. and Prinz, H. (2012) Hydroxymanganopyrochlore,

IMA 2012-005. CNMNC

Newsletter No. 13, June 2012, page 813;

Mineralogical Magazine, 76, 807-817.

IMA No. 2012-006

Štěpite

U(AsO3OH)2·4H2O

Geschieber vein, Svornost shaft, Ja´chymov ore

district, western Bohemia, Czech Republic

Jakub Plášil*, Karla Fejfarová, Jan Hloušek,

Radek Škoda, Milan Novák, Jiří Sejkora, Jiří

Čejka, František Veselovský, Petr Ondruš, Juraj

Majzlan and Zdeněk Mrázek

*E-mail: jakub.horrak@gmail.com

New structure type

Tetragonal: I41/acd; structure determined
a = 10.9894(1), c = 32.9109(6) A ˚

8.190(100), 7.008(43), 5.475(18), 4.111(16),

3.934(12), 3.395(20), 2.933(18), 2.154(25)

Type material is deposited in the collections of

the Department of Mineralogy and Petrology of

the National Museum in Prague, Prague, Czech

Republic, catalogue number P1P 7/2011

How to cite: Plášil*, J., Fejfarová, K., Hloušek, J.,

Škoda, R., Novák, M., Sejkora, J.,

Čejka, J., Veselovský, F., Ondruš, P.,

Majzlan, J. and Mrázek, Z. (2012) Štěpite, IMA 2012-006.

page 813; Mineralogical Magazine, 76,

807-817.

IMA No. 2012-007

Babánekite

Cu3(AsO4)2·8H2O

Geister vein, Rovnost mine, Jáchymov ore

district, western Bohemia, Czech Republic

Jakub Plášil*, Karla Fejfarová, Radek Škoda, Pavel Škácha,

Jiří Sejkora, František Veselovský, Jan Hloušek,

and Milan Novák

*E-mail: jakub.horrak@gmail.com

Monoclinic: C2/m; structure determined
a = 10.1742(2), b = 13.5104(3), c = 4.7489(1) A ˚ ,

beta = 105.416(2)º

7.936(10), 6.743(100), 3.231(14), 2.999(5),

2.980(5), 2.725(5), 2.715(11), 2.333(10)

Type material is deposited in the collections of

the Department of Mineralogy and Petrology of

the National Museum in Prague, Prague, Czech

Republic, catalogue number P1P 8/2011

How to cite: Plášil*, J., Fejfarová, K., Radek Škoda, R.,

Škácha, P., Sejkora, J., Veselovský, F., Hloušek, J.,

and Novák, M. (2012) Babánekite, IMA

2012-007. CNMNC Newsletter No. 13, June

2012, page 814; Mineralogical Magazine, 76,

807-817.

IMA No. 2012-008

Browneite

MnS

Zaklodzie meteorite, Zamosc, Poland

Chi Ma

*E-mail: chi@gps.caltech.edu

Sphalerite group

Cubic: F4¯ 3m
a = 5.601 A ˚

3.234(100), 1.980(63), 1.689(39), 1.400(9),

1.285(14), 1.143(19), 0.947(14), 0.886(14)

Type material is deposited in the collections of

the Smithsonian Institution’s National Museum

of Natural History, Washington DC, USA,

registration number USNM 7607

How to cite: Ma, C. (2012) Browneite, IMA

2012-008. CNMNC Newsletter No. 13, June

2012, page 814; Mineralogical Magazine, 76,

807-817.

New mineral proposals approved in May 2012

IMA No. 2011-094

Cayalsite-(Y)

CaY6Al2Si4O18F6

Øvre Lapplægeret granite pegmatite, Tysfjord,

N o r d l a n d , Norway ( 6 8 º 2 ’4 3 . 2 6 ’ ’N

16º00’14.98’’E)

Thomas Malcherek, Jochen Schlüter*, Tomas

A. Husdal and Mark A. Cooper

*E-mail: Jochen.Schlueter@uni-hamburg.de

New structure type

1O Polytype:

Orthorhombic: Pban; structure determined
a = 15.993(1), b = 5.5306(3), c = 9.6590(7) A ˚

5.222(22), 4.584(15), 4.094(17), 3.997(16),

3.547(58), 2.992(100), 2.776(15), 2.727(15)

1M Polytype:

Monoclinic: P2/c; structure determined
a = 11.050(3), b = 5.5236(3), c = 16.003(3) A ˚ ,

beta = 118.89(1)º

5.221(43), 5.133(51), 4.914(53), 3.873(33),

3.562(67), 3.002(100), 2.756(41)

Type material is deposited in the collections of

the Mineralogical Museum of the University of

Hamburg, Grindelallee 48, D-20146 Hamburg,

Germany, catalogue numbers NO-002B/08 (1O

polytype) and NO-002/08 (1M polytype)

How to cite: Malcherek, T., Schlüter, J., Husdal,

T.A. and Cooper, M.A. (2012) Cayalsite-(Y),

IMA 2011-094. CNMNC Newsletter No. 13,

June 2012, page 814; Mineralogical Magazine,

76, 807-817.

IMA No. 2012-001

Joanneumite

Cu(C3N3O3H2)2(NH3)2

Caleta Pabellon de Pica, Tarapaca, Chile

(20º55’S 70º08’W)

Hans-Peter Bojar* and Franz Walter

*E-mail: hans-peter.bojar@museum-joanneum.at

New structure type

Triclinic: P1¯ ; structure determined
a = 5.042(1), b = 6.997(1), c = 9.099(2) A ˚ ,

alpha = 90.05(3), beta = 98.11(2), gamma = 110.95(3)º

6.528(34), 5.151(26), 4.665(12), 4.346(6),

3.288(4), 3.217(7), 3.139(100), 3.015(5)

Type material is deposited in the collections of

t h e Un i v e r s a l m u s e u m J o a n n e u m ,

Weinzo¨ ttlstrabe 16, A-8045 Graz, Austria,

catalogue number 85.011

How to cite: Bojar, H.-P. and Walter, F. (2012)

Joanneumite, IMA 2012-001. CNMNC

Newsletter No. 13, June 2012, page 814;

Mineralogical Magazine, 76, 807-817.

IMA No. 2012-009

Lavoisierite

Mn2+8O44(OH)12

Punta Gensane, Viù (TO), Piedmont, Italy

Paolo Orlandi*, Cristian Biagioni, Marco Pasero

and Marcello Mellini

*E-mail: orlandi@dst.unipi.it

Related to sursassite and ‘ardennite’

Orthorhombic: Pnmm; structure determined
a = 8.689(1), b = 5.7755(3), c = 36.950(2) A ˚

4.62(m), 4.23(m), 3.167(m), 2.931(vs), 2.765(s),

2.598(s), 2.448(ms), 2.318(m)

Type material is deposited in the collections of

the Museo di Storia Naturale e del Territorio,

Universita` di Pisa, Calci (Pisa), Italy, catalogue

number 19637, and the Museo Regionale di

Scienze Naturali, Torino, Italy, catalogue

number M/U16359

How to cite: Orlandi, P., Biagioni, C., Pasero,

M. and Mellini, M. (2012) Lavoisierite, IMA

2012-009. CNMNC Newsletter No. 13, June

2012, page 815; Mineralogical Magazine, 76,

807-817.

IMA No. 2012-010

Magnesiorowlandite-(Y)

Y4(Mg,Fe)(Si2O7)2F2

Komono, Mie Prefecture, Japan (35º0’35’’N

136º27’33’’E)

Satoshi Matsubara*, Ritsuro Miyawaki, Kazumi

Yokoyama, Masako Shigeoka, Koichi Momma

and Sadaoki Yamamoto

*E-mail: matubara@kahaku.go.jp

Mg analogue of rowlandite-(Y)

Triclinic: P1¯ ; structure determined
a = 6.555(12), b = 8.65(2), c = 5.530(14) A ˚ ,

alpha = 99.3(3), beta =104.14(19), gamma = 91.4(2)º

4.95(33), 3.64(37), 3.54(38), 3.08(100),

2.92(26), 2.68(32), 2.63(28), 2.09(35)

Type material is deposited in the collections of

the National Museum of Nature and Science,

Tokyo, registered number NSM-M43624

How to cite: Matsubara, S., Miyawaki, R.,

Yokoyama, K., Shigeoka, M., Momma, K. and

Yamamoto, S. (2012) Magnesiorowlandite-(Y),

IMA 2012-010. CNMNC Newsletter No. 13,

June 2012, page 815; Mineralogical Magazine,

76, 807-817.

IMA No. 2012-011

Cerchiaraite-(Al)

Ba4Al4O3(OH)3(Si4O12)Cl

Esquire #1 claim, Rush Creek, Fresno County,

California, USA (37º05’N, 119º16’20’’W) and

Esquire #7 and #8 claims, Big Creek, Fresno

County, California, USA (Esquire #7:

36º56’40’’N 119º14’28’’W; Esquire #8:

36º56’42’’N 119º14’12’’W)

Anthony R. Kampf*, Andrew C. Roberts,

Katherine E. Venance, Gail E. Dunning, and

Robert E. Walstrom

*E-mail: akampf@nhm.org

Al analogue of cerchiaraite

Tetragonal: I4/mmm; structure determined
a = 14.317(4), c = 6.0037(18) A ˚

10.15(39), 4.407(39), 3.316(74), 3.009(100),

2.580(93), 2.029(43), 1.880(68), 1.403(54)

Type material is deposited in the collections of

the Natural History Museum of Los Angeles

County, Los Angeles, California, USA, catalogue

numbers 63519, 63517 and 63518

How to cite: Kampf, A.R., Roberts, A.C.,

Venance, K.E., Dunning, G.E. and Walstrom,

R.E. (2012) Cerchiaraite-(Al), IMA 2012-011.

CNMNC Newsletter No. 13, June 2012, page

815; Mineralogical Magazine, 76, 807-817.

IMA No. 2012-012

Cerchiaraite-(Fe)

Ba4Fe3+4O3(OH)3(Si4O12)Cl

Cerchiara mine, Borghetto Vara, Vara Valley,

La Spezia Province, Liguria, Italy, and the

Esquire #7 and #8 claims, Big Creek, Fresno

County, California, USA (Esquire #7:

36º56’40’’N 119º14’28’’W; Esquire #8:

36º56’42’’N 119º14’12’’W)

Anthony R. Kampf*, Andrew C. Roberts,

Katherine E. Venance, Cristina Carbone, Gail

E. Dunning, and Robert E. Walstrom

*E-mail: akampf@nhm.org

Fe analogue of cerchiaraite

Tetragonal: I4/mmm; structure determined
a = 14.3354(19), c = 6.0151(8) A ˚

4.403(26), 3.327(48), 3.016(70), 2.595(100),

2.258(29), 1.812(39), 1.411(43), 1.298(29)

Type material is deposited in the collections of

the Natural History Museum of Los Angeles

County, Los Angeles, California, USA, catalogue

numbers 63515, 63516, 63517 and 63518

How to cite: Kampf, A.R., Roberts, A.C.,

Venance, K.E., Carbone, C., Dunning, G.E.

and Walstrom, R.E. (2012) Cerchiaraite-(Fe),

IMA 2012-012. CNMNC Newsletter No. 13,

June 2012, page 815; Mineralogical Magazine,

76, 807-817.

IMA No. 2012-013

Tellurocanfieldite

Ag8SnTe2S4

Bajiazi lead-zinc deposit, Jianchang County,

Liaoning Province, China (40º35’30’’N 120º02’16’’E)

Gu Xiangping*, Xie Xiande, Lu Anhuai, Kenich

Hoshino, Huang Jiwu and Li Jielan

*E-mail: guxp2004@163.com

Argyrodite-canfieldite series

Orthorhombic: Pna21
a = 15.615(4), b = 7.803(3), c = 11.043(7) A ˚

6.373(21), 3.330(28), 3.186(85), 2.759(49),

2.253(100), 2.124(71), 1.951(51), 1.865(27)

Type material is deposited in the collections of

the Geological Museum of China, Beijing

People’s Republic of China, catalogue number

M111801

How to cite: Gu, X., Xie, X., Lu, A., Hoshino, H.,

Huang, J. and Li, J. (2012) Tellurocanfieldite,

IMA 2012-013. CNMNC Newsletter No. 13,

June 2012, page 816; Mineralogical Magazine,

76, 807-817.

IMA No. 2012-015

Schlüterite-(Y)

Cu4ClF(OH)6

Stetind pegmatite, Tysfjord, Nordland, Norway

(68º10’15.20’’N 16º33’10.65’’E)

Mark A. Cooper, Tomas Husdal, Neil Ball,

Frank C. Hawthorne* and Yassir Abdu

*E-mail: frank_hawthorne@umanitoba.ca

Related to members of the epidote group

Monoclinic: P21/c; structure determined
a = 7.0722(2), b = 5.6198(1), c = 21.4390(4) A ˚ ,

beta = 122.7756(3)º

4.788(100), 4.522(40), 3.297(48), 2.982(57),

2.813(39), 2.731(42), 2.634(42), 2.180(36)

Type material is deposited in the collections of

the Department of Natural History, Royal

Ontario Museum, Toronto, Ontario, Canada,

catalogue number M56409, and the

Naturhistorisk Museum, Blindern, Oslo,

Norway, catalogue numbers 42428 and 42429

How to cite: Cooper, M.A., Husdal, T., Ball, N.,

Hawthorne, F.C. and Abdu, Y. (2012)

Schlüterite-(Y), IMA 2012-015. CNMNC

Newsletter No. 13, June 2012, page 816;

Mineralogical Magazine, 76, 807-817.

IMA No. 2012-016

Fluorowardite

NaAl3(PO4)2F2(OH)2(H2O)2

Silver Coin mine, Valmy, Iron Point district,

Humboldt County, Nevada, USA (40º55’44’’N

117º19’26’’W)

Anthony R. Kampf*, Paul M. Adams and

Robert M. Housley

*E-mail: akampf@nhm.org

Fluorine analogue of wardite

Tetragonal: P41212; structure determined
a = 7.077(2), c = 19.227(3) A ˚

4.766(100), 3.099(75), 3.008(62), 2.834(28),

2.597(56), 1.763(32), 1.659(29), 1.523(49)

Type material is deposited in the collections of

the Mineral Sciences Department, Natural

History Museum of Los Angeles County, Los

Angeles, California, USA, catalogue numbers

57659 and 63810

How to cite: Kampf, A.R., Adams, P.M. and Housley,

R.M. (2012) Fluorowardite, IMA 2012-016. CNMNC

Newsletter No. 13, June 2012, page 816;

Mineralogical Magazine, 76, 807-817.

IMA No. 2012-017

Raberite

Tl5Ag4As6SbS15

Lengenbach quarry, Binn Valley, Valais,

Switzerland

Luca Bindi*, Fabrizio Nestola, Alessandro

Guastoni, Luca Peruzzo, Markus Ecker and

Raul Carampin

*E-mail: luca.bindi@unifi.it

New structure type

Triclinic: P1¯ ; structure determined
a = 8.920(1), b = 9.429(1), c = 20.062(3) A ˚ ,

alpha = 79.66(1), beta = 88.84(1), gamma = 62.72(1)º

3.580(100), 3.506(58), 3.281(73), 3.017(54),

3.001(98), 2.657(51), 2.636(46), 2.591(57)

Type material is deposited in the collections of

the Museum of Mineralogy of the Department

of Geosciences, University of Padova, Italy,

catalogue number MMP M11420

How to cite: Bindi, L., Nestola, F., Guastoni, A.,

Peruzzo, L., Ecker, M. and Carampin, R. (2012)

Raberite, IMA 2012-017. CNMNC Newsletter

No. 13, June 2012, page 816; Mineralogical

Magazine, 76, 807-817.

Nomenclature proposals approved in November 2011

IMA 11-C: The proposal to redefine matulaite

has been approved. The ideal formula of

matulaite becomes Fe3+Al7(PO4)4(PO3OH)2(OH)8(H2O)8·8H2O.

Specimens NHMLAC 28324 are designated as the

neotypes for the species, and are deposited in

collections of the Natural History Museum of

Los Angeles County, Los Angeles, USA.

IMA 11-E: The proposal to redefine vanadiumdravite

has been approved. Vanadium-dravite is

renamed oxy-vanadium-dravite, since the

mineral belongs to the alkali group, oxysubgroup

3 of the tourmaline supergroup

nomenclature. The ideal formula of the

mineral becomes NaV3(V4Mg2)Si6O18(BO3)3(OH)3O.

IMA 11-F: The proposal to modify the

nomenclature of the hollandite supergroup has

been approved. Hollandite is redefined as the

Ba2+-Mn3+ endmember of the coronadite group,

with an ideal formula Ba(Mn4+6Mn3+2)O16, and

the name ferrihollandite is introduced to

designate the Ba2+-Fe3+ endmember of this

group , with an ideal formula

Ba(Mn4+6Fe3+2)O16. The mineral ankangite is

discredited, since it corresponds to mannardite.

Moreover, the ideal endmember formulae of six

potentially new species in the hollandite supergroup

are defined.

Nomenclature proposals approved in April 2012

AMPHIBOLE SUPERGROUP: A new

nomenclature scheme for the amphibole supergroup

was approved by CNMNC on the 3rd of April 2012.

GARNET SUPERGROUP: A new nomenclature

scheme for the garnet supergroup was

approved by the CNMNC on the 3rd of April,

2012. The garnet supergroup includes at present

32 valid species, for which endmember

formulae are given. There are 4 potential new

mineral species which need further study in

order to be approved. Some changes among

existing mineral names were also approved.

22nd Jun 2012 11:19 UTCOlav Revheim Manager

Marco,

Are there any papers or other documents available on the amphibole supergroup?

Olav

22nd Jun 2012 11:48 UTCHarald Oskar Folvik

Is the formula for IMA No. 2012-015 Schlüterite-(Y) Cu4ClF(OH)6 Stetind pegmatite correct? There is no Yttrium in the formula????

22nd Jun 2012 12:40 UTCMarco E. Ciriotti Manager

>> Are there any papers or other documents available on the amphibole supergroup?

No, at this moment. Any paper.

>> Is the formula for IMA No. 2012-015 Schlüterite-(Y) Cu4ClF(OH)6 Stetind pegmatite correct? There is no Yttrium in the formula?

Surely it is a mistake on the IMA list. Stuart can help us to solve the problem.

22nd Jun 2012 13:21 UTCOlav Revheim Manager

Thanks Marco

:-)

22nd Jun 2012 13:38 UTCMarco E. Ciriotti Manager

I have now the reply from Marco Pasero. The correct formula is: (Y,REE)2AlSi2O7(OH)2F.

22nd Jun 2012 14:42 UTCPeter Haas

Fuxiaotuite appears to be the same as "clinotyrolite" which was published without approval and later considered as invalid. Also note that the TLs given for Fuxiaotuite are the same as those previously specified for clinotyrolite.

Luanshiweiite: The TL is GUANpo (官坡; 官 = Guan in the official transliteration), not GUANGpo. The "n-ng-dyslectics" are still a big problem with Chinese locality names and cause a lot of confusion.

22nd Jun 2012 15:22 UTCHarald Oskar Folvik

Thanks, Marco!!

Harald.

22nd Jun 2012 21:22 UTCJim Ferraiolo

That was my guess as well, Peter.

23rd Jun 2012 01:07 UTCPeter Haas

And tellurocanfieldite (which is not sulfur-free) is possibly be the same as the "tellurian canfieldite with a particularly high tellurium content" that has been previously reported from several localities including Bajiazi.

23rd Jun 2012 01:26 UTCRod Martin Expert

Marco

Is here any public details on Browneite yet? Would like to do a write up on Pat Browne who I believe that it was named after

23rd Jun 2012 18:07 UTCMarco E. Ciriotti Manager

Rod Martin Wrote:

-------------------------------------------------------

> Marco

> Is here any public details on Browneite yet? Would

> like to do a write up on Pat Browne who I believe

> that it was named after

Not yet, Rod. Any public detail.

25th Jun 2012 09:27 UTCStefan Schorn

Fuettererite

Hexagonal: R3¯

trigonal ?

25th Jun 2012 11:58 UTCUwe Kolitsch Manager

IMA No. 2011-100

Forêtite

Cu2Al2(AsO4)(OH,O,H2O)6

is the former "Unnamed (Cu-Al Arsenate)"

http://www.mindat.org/min-39530.html

25th Jun 2012 12:15 UTCUwe Kolitsch Manager

For Lahnsteinite, Zn4(SO4)(OH)6·3H2O,

there are two other confirmed localities. One will be published in a collector's journal, along with good photos.

25th Jun 2012 12:58 UTCAlan Barnes (2)

Talking of new minerals and teh like, does anybody know when the next edition of Fleischer's Glossary will be published? The last one was 2008 and normally they come out every four years but I haven't seen or heard anything about the next edition being published. Does anybody know?

Alan

25th Jun 2012 16:51 UTCJeffrey de Fourestier Expert

It is the same mineral as "clinotyrolite" but as all tyrolite is monoclinic and this mineral is definitely not tyrolite the name change was approved in the IMA accepted proposal.

25th Jun 2012 17:08 UTCMarco E. Ciriotti Manager

Stefan Schorn Wrote:

-------------------------------------------------------

> Fuettererite

>

> Hexagonal: R3¯

>

> trigonal ?

Yes. I think it is a little mistake in the IMA CNMNC paper.

25th Jun 2012 17:25 UTCJolyon Ralph Founder

>It is the same mineral as "clinotyrolite" but as all tyrolite is monoclinic and this mineral is

>definitely not tyrolite the name change was approved in the IMA accepted proposal.

This makes no sense. Should clinoenstatite be called something new because all enstatite is orthorhombic?

25th Jun 2012 20:25 UTCAlfredo Petrov Manager

Tellurocanfieldite is here given as a member of the Argyrodite-Canfieldite series. I've no objection to this, as I've long thought "series" could have multiple end-members, but usually I get overruled by those who insist a series can have only 2 end-members

25th Jun 2012 21:04 UTCRob Woodside 🌟 Manager

2 member series are are just a way of describing solid solutions. Until I was caught by the pedantry of 2 members, I and everyone I talked to understood that solid solution series described the full set of 2 member series that describe the solid solution. Don't worry about it Alfredo, leave the 2 member series to the dimesionly challenged pedants and speak freely about solid solution SERIES with several end members.

25th Jun 2012 23:26 UTCStuart Mills Manager

Uwe Kolitsch Wrote:

-------------------------------------------------------

> IMA No. 2011-100

> Forêtite

> Cu2Al2(AsO4)(OH,O,H2O)6

>

> is the former "Unnamed (Cu-Al Arsenate)"

> http://www.mindat.org/min-39530.html

Other confirmed locality at Salsigne.

26th Jun 2012 13:27 UTCJim Ferraiolo

I would have suggested "member of the Argyrodite group" (2.BA.35 in Nickel-Strunz 10).

28th Jun 2012 08:56 UTCMarco E. Ciriotti Manager

IMA No. 2012-013

Tellurocanfieldite

Ag8SnTe2S4

Bajiazi lead-zinc deposit, Jianchang County,

Liaoning Province, China (40º35’30’’N 120º02’16’’E)

Gu Xiangping*, Xie Xiande, Lu Anhuai, Kenich

Hoshino, Huang Jiwu and Li Jielan

*E-mail: guxp2004@163.com

Argyrodite-canfieldite series

Orthorhombic: Pna21
a = 15.615(4), b = 7.803(3), c = 11.043(7) A ˚

6.373(21), 3.330(28), 3.186(85), 2.759(49),

2.253(100), 2.124(71), 1.951(51), 1.865(27)

Type material is deposited in the collections of

the Geological Museum of China, Beijing

People’s Republic of China, catalogue number

M111801

How to cite: Gu, X., Xie, X., Lu, A., Hoshino, H.,

Huang, J. and Li, J. (2012) Tellurocanfieldite,

IMA 2012-013. CNMNC Newsletter No. 13,

June 2012, page 816; Mineralogical Magazine,

76, 807-817.

Given the information in the above note the crystal structure of "tellurocanfieldite" it would not be resolved. The words "structure determined" are not in the text.

I call the attention to the fact that Bindi et al. (2012) have recently presented a paper on Te-rich canfieldite from Lengenbach.

Here is the abstract.

The study with SCXRD performed by Bindi et al. (2012) on the sample from Lengenbach, with nearly identical chemical composition, shows that the Te atoms are disordered in the relevant five structural sites (none of them predominates in tellurium), and the phase, as demonstrated by several tests, is cubic and not orthorhombic.

Not having been observed as reported by Chinese authors in the proposal (check list) I do not have all the elements for a good judgment, but I would say that the proposal and approval deserve a reassessment in order to well understand if the compound has indeed all the qualifications to be recognized as a new mineral species.

Reference:

▪ Bindi, L., Nestola, F., Guastoni, A., Zorzi, F., Peruzzo, L., Raber, T. (2012): Tellurian canfieldite, Ag8Sn(S,Te)6, from Lengenbach quarry, Binntal, Canton Valais, Switzerland: occurrence, description and crystal structure. Canadian Mineralogist, 50, 111-118.

Abstract:

In order to evaluate the effects of Te-for-S substitution in the minerals of the argyrodite group, the crystal structure and chemical composition of a crystal of Te-rich canfieldite from the Lengenbach quarry, Binntal, Switzerland, was investigated. The unit-cell parameters are a 11.0003(6) Å and V 1331.1(1) Å3. The structure was solved and refined in the space group F4-3m to R1 = 0.0308 for 194 independent reflections and 21 parameters. Quantitative analysis led to the chemical formula Ag8.05(Sn1.03Ge0.01)∑1.04(S3.95Te1.95Se0.01)∑5.91, ideally Ag8Sn(S,Te)6. The crystal structure of Te-rich canfieldite was found to be topologically identical to that of putzite, (Cu4.7Ag3.3)GeS6. Neglecting the short Ag-Ag contacts (due to disorder), the two Ag atoms in the structure can be considered as three-fold (Ag1) and four-fold (Ag2) coordinated. Tin adopts a regular tetrahedral coordination. The refinement of the site-occupancy factor indicates Te to be disordered over the three anion positions (i.e., X1, X2, and X3), with a preference for the X1 site.

28th Jun 2012 19:54 UTCRob Woodside 🌟 Manager

Sorry I missed the "orthorhombic" in tellurocanfieldite/ Thanks Marco. It clearly not in solution series, multidimensional or not!!!

8th Jul 2012 18:14 UTCJohn Betterton

Dear Sir,

I wonder if you can help me. I have been trying to get a a PDF copy of the paper relating to the silica mineral chibaite by Momma et al (2011). The web listed e-mails do not work on my computer.

Best regards,

John Betterton (Museum Geologist)

8th Jul 2012 20:07 UTCUwe Kolitsch Manager

You can send an email to the first author, see bottom of http://www.nature.com/ncomms/journal/v2/n2/full/ncomms1196.html

9th Jul 2012 15:02 UTCJim Ferraiolo

John,

A copy is on its way.

11th Jul 2012 16:05 UTCBrent Thorne Expert

The chemical formula for Fuettererite, as listed in the IMA CNMNC proprosal by Marco Ciriotti, is incorrect. Tony Kampf has corrected it on the Fuettererite mineral page. The correct formula is Pb3Cu6TeO6(OH)7Cl5.

11th Jul 2012 19:06 UTCMarco E. Ciriotti Manager

Thank you, Brent.

13th Jul 2012 00:20 UTCJeffrey de Fourestier Expert

Perhaps I should have added that tyrolite is not orthorhombic and it makes no sense to rename it clinotyrolite. The mineral that was known as clinotyrolite has a different chemistry and structure. Clino-enstatite is a polymorph (ie chemically the same) with only the crystal structure being different.

25th Aug 2012 16:54 UTCPeter Haas

Re: Tellurocanfieldite:

Tellurium-rich canfieldite has been long known from Bajiazi (Li, Y. and Qing, C.K. (1999): Acta Mineralogica Sinica 19, 426-435), which is now also the TL of tellurocanfieldite. If we disregard the possibility that it is in fact a variety and not a new mineral, the formula with "Te₂S₄" suggests that there either are two different anion sites or there is a phase transition (structural change) occurring with increasing tellurium content in canfieldite. Both observations imply that there was at least some preliminary structure research carried out.

11th Oct 2012 15:14 UTCMarco E. Ciriotti Manager

2012 MINERAL APPROVAL WITHDRAWN

IMA No. 2012-013 Tellurocanfieldite

Approval for this mineral has been withdrawn

(Gu, X., Xie, X., Lu, A., Hoshino, H., Huang, J.

and Li, J. (2012) Tellurocanfieldite, IMA 2012-

013. CNMNC Newsletter No. 13, June 2012,

page 816; Mineralogical Magazine, 76,

807_817). A subsequent single-crystal structural

analysis has shown that Te is disordered

over the three sulfur sites and thus the material

is in fact Te-rich canfieldite.

16th Nov 2012 16:53 UTCUwe Kolitsch Manager

"Fuxiaotuite appears to be the same as "clinotyrolite" which was published without approval and later considered as invalid. Also note that the TLs given for Fuxiaotuite are the same as those previously specified for clinotyrolite."

"It is the same mineral as "clinotyrolite" but as all tyrolite is monoclinic and this mineral is definitely not tyrolite the name change was approved in the IMA accepted proposal."

In fact, the space group is identical with and the unit-cell parameters are very close to those of the 2M-polytype of tyrolite (C2/c; a = 54.520(6), b = 5.5638(6), c = 10.4647(10) Å, beta = 96.432(9)°; Krivovichev et al., 2006).

I first thought: shouldn't fuxiaotuite be just considered a polytype of tyrolite and therefore discredited?

Then I noticed that tyrolite is defined as a SO4-free, but CO3-bearing species, and fuxiaotuite as a SO4-bearing, but CO3-free species. I am really looking forward to see the crystal structure and how its details were determined.

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