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Riomarinaite

Formula:
Bi(OH)(SO
 
4
) * H
 
2
O
System:MonoclinicColour:light beige to light grey
Hardness:2 - 3
Name:for the type locality
This page provides mineralogical data about Riomarinaite.

Classification of Riomarinaite

IMA status:Approved 2000
Strunz 8th edition ID:6/0.0-
Nickel-Strunz 10th (pending) edition ID:7.DF.75

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
F : With large and medium-sized cations
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Type Occurrence of Riomarinaite

Type Locality:Falcacci stope (Le Cavacce), Rio Mine (Rio Marina Mine), Rio Marina, Elba Island, Livorno Province, Tuscany, Italy
General Appearance of Type Material:cavernous masses and coatings, rarely radiated aggregates of acicolar crystals
Year of Discovery:2005
Geological Setting of type material:alteration product of bismuthinite at very low pH values
Associated Minerals at type locality:
PyriteCosaliteCannoniteBismuthiniteBismoclite
Anglesite

Physical Properties of Riomarinaite

Lustre:Vitreous
Colour:light beige to light grey
Streak:white to light grey
Hardness (Mohs):2 - 3
Tenacity:Brittle
Fracture:Irregular/Uneven
Density (calculated):4.8 g/cm3

Crystallography of Riomarinaite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Cell Parameters:a = 6.0118Å, b = 13.3355Å, c = 6.4854Å
β = 112.906°
Ratio:a:b:c = 0.451 : 1 : 0.486
Unit Cell Volume:V 478.94 ų
Z:4

Chemical Properties of Riomarinaite

Formula:
Bi(OH)(SO
 
4
) * H
 
2
O
All elements listed in formula:Bi, H, O, S

Relationship of Riomarinaite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
7.DF.05Uklonskovite
NaMg[F|SO
 
4
] · 2H
 
2
O
7.DF.10Kainite
KMg[Cl|SO
 
4
] · 3H
 
2
O
7.DF.15Natrochalcite
NaCu
 
2
[OH|(SO
 
4
)
 
2
] · 2H
 
2
O
7.DF.20Metasideronatrite
Na
 
4
Fe
 
2
(SO
 
4
)
 
4
(OH)
 
2
·2H
 
2
O
7.DF.20Sideronatrite
Na
 
2
Fe(SO
 
4
)
 
2
OH·3H
 
2
O
7.DF.25Despujolsite
Ca
 
3
Mn
4+
 
[(OH)
 
6
|(SO
 
4
)
 
2
] · 3H
 
2
O
7.DF.25Fleischerite
Pb
 
3
Ge[(OH)
 
6
|(SO
 
4
)
 
2
] · 3H
 
2
O
7.DF.25Schaurteite
Ca
 
3
Ge[(OH)
 
6
|(SO
 
4
)
 
2
] · 4H
 
2
O
7.DF.25Mallestigite
Pb
 
3
Sb
5+
 
[(OH)
 
6
|AsO
 
4
|SO
 
4
] · 3H
 
2
O
7.DF.30Slavíkite
NaMg
 
2
Fe
 
5
(SO
 
4
)
 
7
(OH)
 
6
·33H
 
2
O
7.DF.35Metavoltine
Na
 
6
K
 
2
FeFe
 
6
(SO
 
4
)
 
12
O
 
2
·18H
 
2
O
7.DF.40Lannonite
HCa
 
4
Mg
 
2
Al
 
4
(SO
 
4
)
 
8
F
 
9
·32H
 
2
O
7.DF.40Vlodavetsite
AlCa
 
2
[F
 
2
|Cl|(SO
 
4
)
 
2
] · 4H
 
2
O
7.DF.45Peretaite
Ca(SbO)
 
4
[(OH)|SO
 
4
]
 
2
 · 2H
 
2
O
7.DF.50Gordaite
NaZn[(OH)
 
6
|SO
 
4
|Cl] · 6H
 
2
O
7.DF.55Clairite
(NH
 
4
)
 
2
Fe
 
3
(SO
 
4
)
 
4
(OH)
 
3
·3H
 
2
O
7.DF.60Arzrunite
near Cu
 
4
Pb
 
2
SO
 
4
Cl
 
6
(OH)
 
4
·2H
 
2
O
7.DF.65Elyite
Pb
 
4
Cu(SO
 
4
)O
 
2
(OH)
 
4
·H
 
2
O
7.DF.70Yecoraite
Fe
3+
3
(BiO)
 
5
(Te
4+
 
O
 
3
)(Te
6+
 
O
 
6
)
 
2
 · 9H
 
2
O
7.DF.80Dukeite
Bi
 
24
Cr
6+
8
O
 
57
(OH)
 
6
(H
 
2
O)
 
3
7.DF.85Xocolatlite
Ca
 
2
Mn
4+
2
Te
6+
2
O
 
12
·H
 
2
O

Other Names for Riomarinaite

Synonyms:
IMA2000-004
Other Languages:
German:Riomarinait
Russian:Риомаринаит

Other Information

Fluorescence in UV light:none
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 Riomarinaite

Reference List:Rögner, P. (2005): Riomarinait, ein neues Wismutmineral vom Abbau Falcacci, Rio Marina, Elba (Italien). Aufschluss 56, 53-60.

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    Localities for Riomarinaite

    (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.
    Italy
     
    • Tuscany
      • Livorno Province
        • Elba Island
          • Rio Marina
            • Rio Mine (Rio Marina Mine)
    		Rögner, P. (2005) Aufschluss 56, 53-60
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