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Riomarinaite

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Formula:
Bi(SO4)(OH) · H2O
System:
Monoclinic
Colour:
light beige to light grey
Hardness:
2 - 3
Name:
for the type locality
This page provides mineralogical data about Riomarinaite.

Classification of Riomarinaite

Approved 2000
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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First Recorded Occurrence of Riomarinaite

General Appearance of First Recorded Material:
cavernous masses and coatings, rarely radiated aggregates of acicolar crystals
Year of Discovery:
2000
Geological Setting of First Recorded Material:
alteration product of bismuthinite at very low pH values
Associated Minerals at First Recorded Locality:

Physical Properties of Riomarinaite

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

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(SO4)(OH) · H2O
Essential elements:
All elements listed in formula:

Relationship of Riomarinaite to other Species

7.DF.05UklonskoviteNaMg(SO4)F · 2H2O
7.DF.10KainiteKMg(SO4)Cl · 3H2O
7.DF.15NatrochalciteNaCu2(SO4)2(OH) · 2H2O
7.DF.20MetasideronatriteNa2Fe(SO4)2(OH) · H2O
7.DF.20SideronatriteNa2Fe(SO4)2(OH) · 3H2O
7.DF.25DespujolsiteCa3Mn4+(SO4)2(OH)6 · 3H2O
7.DF.25FleischeritePb3Ge(SO4)2(OH)6 · 3H2O
7.DF.25SchaurteiteCa3Ge(SO4)2(OH)6 · 4H2O
7.DF.25MallestigitePb3Sb5+(SO4)(AsO4)(OH)6 · 3H2O
7.DF.30Slavíkite(H3O+)3Mg6Fe15(SO4)21(OH)18 · 98H2O
7.DF.35MetavoltineNa6K2FeFe6(SO4)12O2 · 18H2O
7.DF.40LannoniteMg2Ca4Al4(SO4)8F8 · 24H2O
7.DF.40VlodavetsiteAlCa2(SO4)2F2Cl · 4H2O
7.DF.45PeretaiteCa(SbO)4(SO4)2(OH)2 · 2H2O
7.DF.50GordaiteNaZn4(SO4)(OH)6Cl · 6H2O
7.DF.55Clairite(NH4)2Fe3(SO4)4(OH)3 · 3H2O
7.DF.60ArzruniteCu4Pb2(SO4)(OH)4Cl6 · 2H2O (?)
7.DF.65ElyitePb4Cu(SO4)O2(OH)4 · H2O
7.DF.70YecoraiteFe33+Bi5(Te6+O4)2(Te4+O3)O9 · 9H2O
7.DF.80DukeiteBi243+Cr86+O57(OH)6 · 3H2O
7.DF.85XocolatliteCa2Mn24+(Te6+O6)2 · H2O

Other Names for Riomarinaite

Name in Other Languages:
Simplified Chinese:瑞铋矾
Traditional Chinese:瑞鉍礬

Other Information

Health Risks:
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.

Internet Links for Riomarinaite

Localities for Riomarinaite

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 for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
Germany
 
  • Bavaria
    • Lower Bavaria
      • Röhrnbach
Habel, M. (2009): Der Granodioritbruch der Fa. Josef Uhrmann OHG, Steinerleinbach bei Röhrnbach. Mineralien-Welt 20 (2), 66-86.
Italy
 
  • Tuscany
    • Livorno Province
      • Elba Island
        • Rio Marina
          • Rio Mine (Rio Marina Mine)
Rögner, P. (2005) Aufschluss 56, 53-60; Senesi, F., Hanauer, M. & Rogner, P. (2013): I minerali di bismuto di Rio Marina, Isola d'Elba. Rivista Mineralogica Italiana, 4/2013, 234-242
Mineral and/or Locality  
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