Smamite, Ca2Sb(OH)(4)[H(AsO4)(2)]center dot 6H(2)O, a new
mineral and a possible sink for Sb during weathering of fahlore

J 2020

Smamite, Ca2Sb(OH)(4)[H(AsO4)(2)]center dot 6H(2)O, a new mineral and a possible sink for Sb during weathering of fahlore

PLÁŠIL, Jakub, Anthony R. KAMPF, Nicolas MEISSER, Cedric LHEUR, Thierry BRUNSPERGER et. al.

Základní údaje

Originální název

Smamite, Ca2Sb(OH)(4)[H(AsO4)(2)]center dot 6H(2)O, a new mineral and a possible sink for Sb during weathering of fahlore

Autoři

PLÁŠIL, Jakub (garant), Anthony R. KAMPF, Nicolas MEISSER, Cedric LHEUR, Thierry BRUNSPERGER a Radek ŠKODA (203 Česká republika, domácí)

Vydání

American Mineralogist, Chantilly, Mineralogical Society of America, 2020, 0003-004X

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10504 Mineralogy

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 3.003

Kód RIV

RIV/00216224:14310/20:00116942

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.2138/am-2020-7133

UT WoS

000523599300010

Klíčová slova anglicky

Smamite; new mineral species; arsenate; crystal structure; weathering; fahlore; Sainte-Marie-aux-Mines

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 13. 11. 2020 15:06, Mgr. Marie Šípková, DiS.

Anotace

V originále

Smamite, Ca2Sb(OH)(4)[H(AsO4)(2)]center dot 6H(2)O, is a new mineral species from the Giftgrube mine, Rauenthal, Sainte-Marie-Aux-Mines ore-district, Haut-Rhin department, France. It is a supergene mineral found in quartz-carbonate gangue with disseminated to massive tennantite-tetrahedrite series minerals, native arsenic, Ni-Co arsenides, and supergene minerals picropharmacolite, fluckite, and pharmacolite. Smamite occurs as lenticular crystals growing in aggregates up to 0.5 mm across. The new mineral is whitish to colorless, transparent with vitreous luster and white streak; non-fluorescent under UV radiation. The Mohs hardness is3(1/2); the tenacity is brittle, the fracture is curved, and there is no apparent cleavage. The measured density is 2.72(3) g/cm(3); the calculated density is 2.709 g/cm(3) for the ideal formula. The mineral is insoluble in H2O and quickly soluble in dilute (10%) HCl at room temperature. Optically, smamite is biaxial (-), alpha = 1.556(1), beta = 1.581(1), gamma = 1.588(1) (white light). The 2V (meas) = 54(1)degrees; 2V (calc) = 55.1 degrees. The dispersion is weak, r > gamma. Smamite is non-pleochroic. Electron microprobe analyses provided the empirical formula Ca-2 center dot 03Sb(0.97)(OH)(4)[H-1.10(As1.99Si0.01O4)(2)]center dot 6H2O. Smamite is triclinic, P (1) over bar, alpha = 5.8207(4), b = 8.0959(6), c = 8.21296(6) angstrom, alpha = 95.8343(7)degrees, beta = 110.762(8)degrees, gamma = 104.012(7)degrees, V = 402.57(5) angstrom 3, and Z = 1. The structure (Robs = 0.027 for 1518 I>3sI reflections) is based upon {Ca-2(H2O)(6)Sb(OH)(4)[H(AsO4)(2)]} infinite chains consisting of edge-sharing dimers of Ca(H2O)(3)O-2(OH)(2) polyhedra that share edges with Sb(OH)(4)O-2 octahedra; adjacent chains are linked by H-bonds, including one strong, symmetrical H-bond with an O-H bond-length of similar to 1.23 angstrom. The name smamite is based on the acronym of the Sainte-Marie-aux-Mines district.

Citovat

PLÁŠIL, Jakub, Anthony R. KAMPF, Nicolas MEISSER, Cedric LHEUR, Thierry BRUNSPERGER a Radek ŠKODA. Smamite, Ca2Sb(OH)(4)[H(AsO4)(2)]center dot 6H(2)O, a new mineral and a possible sink for Sb during weathering of fahlore. American Mineralogist. Chantilly: Mineralogical Society of America, 2020, roč. 105, č. 4, s. 555-560. ISSN 0003-004X. Dostupné z: https://dx.doi.org/10.2138/am-2020-7133.

@article{1693676,
   author = {Plášil, Jakub and Kampf, Anthony R. and Meisser, Nicolas and Lheur, Cedric and Brunsperger, Thierry and Škoda, Radek},
   article_location = {Chantilly},
   article_number = {4},
   doi = {http://dx.doi.org/10.2138/am-2020-7133},
   keywords = {Smamite; new mineral species; arsenate; crystal structure; weathering; fahlore; Sainte-Marie-aux-Mines},
   language = {eng},
   issn = {0003-004X},
   journal = {American Mineralogist},
   title = {Smamite, Ca2Sb(OH)(4)[H(AsO4)(2)]center dot 6H(2)O, a new mineral and a possible sink for Sb during weathering of fahlore},
   url = {https://doi.org/10.2138/am-2020-7133},
   volume = {105},
   year = {2020}
}

TY  - JOUR
ID  - 1693676
AU  - Plášil, Jakub - Kampf, Anthony R. - Meisser, Nicolas - Lheur, Cedric - Brunsperger, Thierry - Škoda, Radek
PY  - 2020
TI  - Smamite, Ca2Sb(OH)(4)[H(AsO4)(2)]center dot 6H(2)O, a new mineral and a possible sink for Sb during weathering of fahlore
JF  - American Mineralogist
VL  - 105
IS  - 4
SP  - 555-560
EP  - 555-560
PB  - Mineralogical Society of America
SN  - 0003004X
KW  - Smamite
KW  - new mineral species
KW  - arsenate
KW  - crystal structure
KW  - weathering
KW  - fahlore
KW  - Sainte-Marie-aux-Mines
UR  - https://doi.org/10.2138/am-2020-7133
L2  - https://doi.org/10.2138/am-2020-7133
N2  - Smamite, Ca2Sb(OH)(4)[H(AsO4)(2)]center dot 6H(2)O, is a new mineral species from the Giftgrube mine, Rauenthal, Sainte-Marie-Aux-Mines ore-district, Haut-Rhin department, France. It is a supergene mineral found in quartz-carbonate gangue with disseminated to massive tennantite-tetrahedrite series minerals, native arsenic, Ni-Co arsenides, and supergene minerals picropharmacolite, fluckite, and pharmacolite. Smamite occurs as lenticular crystals growing in aggregates up to 0.5 mm across. The new mineral is whitish to colorless, transparent with vitreous luster and white streak; non-fluorescent under UV radiation. The Mohs hardness is3(1/2); the tenacity is brittle, the fracture is curved, and there is no apparent cleavage. The measured density is 2.72(3) g/cm(3); the calculated density is 2.709 g/cm(3) for the ideal formula. The mineral is insoluble in H2O and quickly soluble in dilute (10%) HCl at room temperature. Optically, smamite is biaxial (-), alpha = 1.556(1), beta = 1.581(1), gamma = 1.588(1) (white light). The 2V (meas) = 54(1)degrees; 2V (calc) = 55.1 degrees. The dispersion is weak, r > gamma. Smamite is non-pleochroic. Electron microprobe analyses provided the empirical formula Ca-2 center dot 03Sb(0.97)(OH)(4)[H-1.10(As1.99Si0.01O4)(2)]center dot 6H2O. Smamite is triclinic, P (1) over bar, alpha = 5.8207(4), b = 8.0959(6), c = 8.21296(6) angstrom, alpha = 95.8343(7)degrees, beta = 110.762(8)degrees, gamma = 104.012(7)degrees, V = 402.57(5) angstrom 3, and Z = 1. The structure (Robs = 0.027 for 1518 I>3sI reflections) is based upon {Ca-2(H2O)(6)Sb(OH)(4)[H(AsO4)(2)]} infinite chains consisting of edge-sharing dimers of Ca(H2O)(3)O-2(OH)(2) polyhedra that share edges with Sb(OH)(4)O-2 octahedra; adjacent chains are linked by H-bonds, including one strong, symmetrical H-bond with an O-H bond-length of similar to 1.23 angstrom. The name smamite is based on the acronym of the Sainte-Marie-aux-Mines district.
ER  -

PLÁŠIL, Jakub, Anthony R. KAMPF, Nicolas MEISSER, Cedric LHEUR, Thierry BRUNSPERGER a Radek ŠKODA. Smamite, Ca2Sb(OH)(4)[H(AsO4)(2)]center dot 6H(2)O, a new mineral and a possible sink for Sb during weathering of fahlore. \textit{American Mineralogist}. Chantilly: Mineralogical Society of America, 2020, roč.~105, č.~4, s.~555-560. ISSN~0003-004X. Dostupné z: https://dx.doi.org/10.2138/am-2020-7133.

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