Nomenclature des nouveaux minéraux

(novembre/décembre 2011 + janvier/février 2012)

IMA No. 2011-076
Disulfodadsonite
Pb11Sb13S30(S2)0.5
Ceragiola area of the Seravezza marble quarries, Apuan Alps, Tuscany, Italy
Cl-free homeotype of dadsonite, stabilized by S22[1] ions
Triclinic: P1¯ ; structure determined

IMA No. 2011-080
Hillesheimite
(K,Ca,Ba,□)2(Mg,Fe,Ca,□)2[(Si,Al )13O23(OH)6](OH)·8H2O
Graulay, Hillesheim, Eifel Mountains, Rheinland-Pfalz, Germany
Structurally related to gu¨nterblassite and umbrianite
Orthorhombic: Pmmn; structure determined

IMA No. 2011-082
Ekplexite
(Nb,Mo,W)S2·(Mg1[1]xAlx)(OH)2+x
Valleriite group
Trigonal: P321, P3m1 or P3¯ m1

IMA No. 2011-077
Thermessaite-(NH4)
(NH4)2AlF3(SO4)
La Fossa crater, Vulcano island, Italy
(NH4)-analogue of thermessaite
Orthorhombic: Pbcn; structure determined

IMA No. 2011-081
Laptevite-(Ce)
Ca6(Fe2+,Mn2+)Y3REE7(SiO4)3(PO4)(B3Si3O18)(BO3)F11
Dara-i-Pioz glacier moraine, Alai mountain range, Tien-Shan, Garmskii district, North Tajikistan (39º30’N 70º40’E)
Structurally related to structurally related to the okanoganite[1]vicanite group
Hexagonal: R3m; structure determined

IMA No. 2011-083
Osumilite-(Mg)
KMg2Al3(Al2Si10)O30
Bellerberg, Eastern Eifel area, Rheinland-Pfalz, Germany
Mg analogue of osumilite
Hexagonal: P6/mcc; structure determined

IMA No. 2011-084
Witzkeite
Na4K4Ca(NO3)2(SO4)4·2H2O
Punta de Lobos, Tarapaca´ region, Chile (21º12’S 70º05’W)
New structure type
Monoclinic: Cc; structure determined

IMA No. 2011-085
Starovaite
KCu5O(VO4)3
Yadovitaya fumarole, Tolbachik volcano,Kamchatka Peninsula, Kamchatka Oblast’, Far- Eastern Region, Russia (55º41’N 160º14’E)
Known structure type
Triclinic: P1¯

IMA No. 2011-086
Zaccariniite
RhNiAs
Loma Peguera, Dominican Republic
(18.9900523ºN 70.322982ºW)
Known structure type
Tetragonal: P4/nmm
 
IMA No. 2011-087
Piemontite-(Pb)
CaPbAl2Mn3+[Si2O7][SiO4]O(OH)
Mixed Series formation, Babuna valley, 40 km SW of Veles, Nezˇilovo village, Jacupica Mountains, Macedonia
Epidote group
Monoclinic: P21/m; structure determined

IMA No. 2011-088
Mendozavilite-KCa
[K2(H2O)15Ca(H2O)6][Mo8P2Fe3+3O34(OH)3]
Chuquicamata mine, Antofagasta, Chile
Betpakdalite group
Monoclinic: C2/m

IMA No. 2011-089
Hilarionite
Fe3+2(SO4)(AsO4)(OH)·6H2O
Hilarion mine, Agios Konstantinos (Kamariza), Lavrion District, Attikı´ Prefecture, Greece
Monoclinic: C2, Cm or C2/m

IMA No. 2011-092
Kangite
(Sc,Ti,Al,Zr,Mg,Ca,□)2O3
Allende meteorite
Bixbyite group
Cubic: Ia-3; structure determined

IMA No. 2011-093
Wopmayite
Ca6Na3□Mn(PO4)3(PO3OH)4
Tanco mine, Bernic Lake, Manitoba, Canada
IMA No. 2010-045
Hezuolinite
(Sr,REE)4Zr(Ti,Fe)4Si4O22
Saima alkaline intrusion, Liaoning Province, China (124º12’E 41º00’N)
Perrieritechevkinite group
Monoclinic: C2/m; structure determined

IMA No. 2010-060
Allanite-(Nd)
CaNdAl2Fe2+(SiO4)(Si2O7)O(OH)
NYF granite pegmatite near Askagen, Varmland, Sweden
Epidote group
Monoclinic: P21/m; structure determined

IMA No. 2010-063
Pavlovskyite
Ca8(SiO4)2(Si3O10)
Birkhin gabbro massif, Baikal Lake, Eastern Siberia, Russia (52º42’N 106º30’E) and xenolith number 3, Upper Chegem caldera, Lakargi, Kabardino-Balkaria, North Caucasus, Russia (43º17’N 43º6’E)
Known synthetic phase
Orthorhombic: Pbcn; structure determined

IMA No. 2010-064
Bitikleite-(SnFe)
Ca3(SnSb5+)Fe3+3O12
Xenolith number 1, Upper Chegem caldera, Lakargi, Kabardino-Balkaria, North Caucasus, Russia (43º17’N 43º6’E)
Garnet group
Cubic: Ia3¯ d

IMA No. 2010-066
Ferriallanite-(La)
Ca(La,C e,T h)(Fe3+,Al)(Al,Fe3+)(Fe2+,Mn,Ti,Mg)(SiO4)(Si2O7)O(OH)
In den Dellen pumice quarries, Niedermendig, Mendig, Laach Lake volcanic complex, Eifel Mountains, Rhineland-Palatinate, Germany
Epidote group
Monoclinic: P21/m; structure determined

IMA No. 2010-067
Fluor-schorl
NaFe2+3Al6Si6O18(BO3)3(OH)3F
Alluvial tin deposits near Steinberg, Zschorlau, Erzgebirge, Saxony, Germany and in pegmatites near Grasstein, Trentino, South Tyrol, Italy
Tourmaline group
Trigonal: R3m; structure determined

IMA No. 2010-068
Mejillonesite
NaMg2(PO3OH)(PO4)H(OH)·2H2O
C e r r o Me j i l l o n e s ( 23º 05’ 44’’ S 70º 30’ 53’’W), Mejillones Peninsula, Mejillones, Antofagasta Region, Chile
New structure type
Orthorhombic: Pbca; structure determined

IMA No. 2010-069
Arsenohopeite
Zn3(AsO4)2·4H2O
Tsumeb mine, Namibia
Arsenate analogue of hopeite
Orthorhombic: Pnma; structure determined

IMA No. 2010-070
Vladimirivanovite
Na6Ca2[Al6Si6O24](SO4,S3,S2,Cl)2·H2O
Tultuy (or Tultui) deposit, Tultuy River, Irkutsk Region, Russia (51º40’58’’N 103º26’24’’E), and the Luadzhvardarite deposit, Luadzhvardara River, southwestern Pamirs, Republic of Tajikistan (37º5’24’’N 71º45’E)
Sodalite group
Orthorhombic: Pnaa; structure determined

IMA No. 2010-071
Langbanshyttanite
Pb2Mn2Mg(AsO4)2(OH)4·6H2O
Langban mine, Sweden
New structure type
Triclinic: P1¯ ; structure determined

Rusinovite
Ca10(Si2O7)3Cl2
Upper Chegem caldera, Kabardino-Balkaria, North Caucasus, Russia (43º17’N 43º6’E)
New structure type
Orthorhombic: Cmcm; structure determined
 
IMA No. 2010-059
Ernstburkeite
Mg(CH3SO3)2·12H2O
In an ice core from the Dome Fuji station, East Antarctica (77º19’S 39º42’E)
Known synthetic compound
Trigonal: R3¯

IMA No. 2010-073
Irinarassite
Ca3Sn2Al2SiO12
Verkhni Chegem caldera, Kabardino-Balkaria, North Caucasus, Russia (43º17’N 43º6’E)
Cubic: Ia3¯ d

IMA No. 2010-074
Wassonite
TiS
Yamato 691 enstatite chondrite, Queen Fabiola Mountains, Antarctica
Keiko Nakamura-Messenger*, Simon. J.
Known structure type
Rhombohedral: R3¯ m

IMA No. 2010-075
Galuskinite
Ca7(SiO4)3(CO3)
Birkhin gabbro massif, Eastern Siberia, Russia (52.7ºN 106.5ºE)
New structure type
Monoclinic: P21/c; structure determined

IMA No. 2010-077
Eldrago´nite
Cu6BiSe4(Se2)
El Drago´n mine, Quijarro Province, Department of Potosi, Bolivia (19º49.15’S 65º55’W)
New structure type
Orthorhombic: Pmcn; structure determined

IMA No. 2010-078
Jacutingaite
Pt2HgSe3
Caueˆ iron-ore deposit, Itabira district, Minas Gerais, Brazil
Trigonal: P3¯ m1; structure determined

IMA No. 2010-080
Ferrotochilinite
6FeS·5Fe(OH)2
No. 1 Shaft, Oktyabr’sky mine, Talnakh, Norilsk area, Krasnoyarsk Krai, Siberia, Russia
Fe(II) analogue of tochilinite
Monoclinic: C2/m, Cm or C2

IMA No. 2010-081
Chukhrovite-(Ca)
Ca4.5Al2(SO4)F13·12H2O
Val Cavallizza Pb-Zn(Ag) mine, SW of Cavagnano, Cuasso al Monte, Varese province, Lombardy, Italy (45º54’01’’N 8º51’41’’E)
Chukhrovite group
Cubic: Fd3¯ ; structure determined

IMA No. 2010-082
Angarfite
NaFe3+5(PO4)4(OH)4·4H2O
Angarf-South pegmatite, Tazenakht, Ouarzazate Province, Souss-Massa-Draaˆ Region, Morocco
(43º39’30N 2º29’58E)
New structure type
Orthorhombic: C2221; structure determined
Structurally related to whitlockite
Rhombohedral: R3c; structure determined