Help mindat.org|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on MindatThe Mindat Store
Minerals by PropertiesMinerals by ChemistryRandom MineralSearch by minIDLocalities Near MeSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportAdd Glossary Item
StatisticsMember ListBooks & MagazinesMineral Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

β-Roselite

This page is currently not sponsored. Click here to sponsor this page.
Formula:
Ca2(Co2+,Mg)(AsO4)2 · 2H2O
System:
Triclinic
Colour:
Dark rose red, dark pink
Lustre:
Vitreous
Hardness:
3½ - 4
Name:
Named for the relation to roselite.
Dimorph of:

Classification of β-Roselite

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
7/C.17-80

7 : Phosphates, Arsenates, Vanadates
C : Water-bearing phosphates without unfamiliar anions. cations of medium and small size: Be and Mn, Fe, Cu, Zn, Mg
17 : Collinsite - Wendwilsonite series
40.2.2.7

40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
2 : AB2(XO4)2·xH2O
20.10.4

20 : Arsenates (also arsenates with phosphate, but without other anions)
10 : Arsenates of Co and Ni
mindat.org URL:
http://www.mindat.org/min-3451.html
Please feel free to link to this page.

Type Occurrence of β-Roselite

Physical Properties of β-Roselite

Vitreous
Diaphaneity (Transparency):
Translucent
Colour:
Dark rose red, dark pink
Streak:
Red, pale
Hardness (Mohs):
3½ - 4

Crystallography of β-Roselite

Crystal System:
Triclinic
Cell Parameters:
a = 5.88Å, b = 7.67Å, c = 5.58Å
α = 112.32°, β = 71.35°, γ = 119.68°
Ratio:
a:b:c = 0.767 : 1 : 0.728

Optical Data of β-Roselite

Type:
Biaxial (-)
RI values:
nα = 1.723 nβ = 1.737 nγ = 1.756
Max Birefringence:
δ = 0.033
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
r > v

Chemical Properties of β-Roselite

Formula:
Ca2(Co2+,Mg)(AsO4)2 · 2H2O
Essential elements:
All elements listed in formula:
Common Impurities:
Mg

Relationship of β-Roselite to other Species

Series:
Forms a series with Talmessite (see here)
Other Members of Group:
CassidyiteCa2(Ni2+,Mg)(PO4)2 · 2H2O
CollinsiteCa2(Mg,Fe2+)(PO4)2 · 2H2O
FairfielditeCa2(Mn2+,Fe2+)(PO4)2 · 2H2O
GaititeCa2Zn(AsO4)2 · 2H2O
MesseliteCa2(Fe2+,Mn2+)(PO4)2 · 2H2O
NickeltalmessiteCa2Ni(AsO4)2 · 2H2O
ParabrandtiteCa2Mn2+(AsO4)2 · 2H2O
TalmessiteCa2Mg(AsO4)2 · 2H2O
Unnamed (Fe2+-analogue of Parabrandtite)Ca2Fe2+(AsO4)2 · 2H2O
7/C.17-10CollinsiteCa2(Mg,Fe2+)(PO4)2 · 2H2O
7/C.17-15HilliteCa2(Zn,Mg)(PO4)2 · 2 H2O
7/C.17-20MesseliteCa2(Fe2+,Mn2+)(PO4)2 · 2H2O
7/C.17-30FairfielditeCa2(Mn2+,Fe2+)(PO4)2 · 2H2O
7/C.17-40CassidyiteCa2(Ni2+,Mg)(PO4)2 · 2H2O
7/C.17-50TalmessiteCa2Mg(AsO4)2 · 2H2O
7/C.17-60GaititeCa2Zn(AsO4)2 · 2H2O
7/C.17-70ParabrandtiteCa2Mn2+(AsO4)2 · 2H2O
7/C.17-90WendwilsoniteCa2Mg(AsO4)2 · 2H2O
7/C.17-100RoseliteCa2(Co2+,Mg)(AsO4)2 · 2H2O
7/C.17-110BrandtiteCa2(Mn2+,Mg)(AsO4)2 · 2H2O
7/C.17-120ZincroseliteCa2Zn(AsO4)2 · 2H2O
20.10.1ErythriteCo3(AsO4)2 · 8H2O
20.10.2CobaltaustiniteCaCo(AsO4)(OH)
20.10.3RoseliteCa2(Co2+,Mg)(AsO4)2 · 2H2O
20.10.5WendwilsoniteCa2Mg(AsO4)2 · 2H2O
20.10.6Cobaltkoritnigite(Co,Zn)(HAsO4) · H2O
20.10.7AerugiteNi8.5(AsO4)2As5+O8
20.10.8XanthiositeNi3(AsO4)2
20.10.9AnnabergiteNi3(AsO4)2 · 8H2O
20.10.10Smolyaninovite(Co,Ni,Mg,Ca)3(Fe3+,Al)2(AsO4)4 · 11H2O
20.10.11NickelaustiniteCa(Ni,Zn)(AsO4)(OH)

Other Names for β-Roselite

Name in Other Languages:

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 β-Roselite

Reference List:
American Mineralogist (1954): 39: 828-833.

Frondel, C. (1955): Neomesselite and Beta-roselite: two new members of the fairfieldite group.- American Mineralogist 40, 828-833.

Bulletin de la Société française de Minéralogie et de Cristallographie (1964): 87: 169.

Joswig, W., Paulus, E. F., Liebscher, B. (2004): Crystal structure of dicalcium (cobalt,magnesium) diarsenate dihydrate, Ca2(Co0.532Mg0.468)[AsO4]2.2H2O, hydrogen bonding in talmessite. Z. Kristallogr. - New Cryst. Struct. 219, 341-342. [NOTE: Magnesium-rich material][NOTE: Use of name talmessite is an error!].

Internet Links for β-Roselite

Localities for β-Roselite

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.
Australia
 
  • Queensland
    • Mount Isa - Cloncurry area
      • Cloncurry district
        • Kajabbi railroad station
S. Mills XRD data
Chile
 
  • Atacama Region
    • Chañaral province
      • El Salado
        • Diego de Almagro
          • Pampa Capitana
            • La Florida district
Ruiz Fuller C.-Peebles F.; "Yacimientos metalíferos de Chile", Fondecyt, Stgo 1988, Chile
France
 
  • Languedoc-Roussillon
    • Aude
      • Padern
Favreau, G., Berbain, C. & Meisser, N. (2003): Cyanophyllite et autres minéraux rares de Padern (Aude). Le Cahiers des Micromonteurs, 82(4), 17-23.
Germany
 
  • Hesse
    • Odenwald
      • Mühltal
        • Nieder-Beerbach
Belendorff, K. (1986): Erze und Sekundärmineralien von Nieder-Beerbach/Odenwald. LAPIS 11 (10), 25-28 +58.
    • Richelsdorf District
      • Süss
        • Richelsdorf Smelter
S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1992
  • Lower Saxony
    • Harz
      • Braunlage
Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
  • North Rhine-Westphalia
    • Niederberg area
      • Velbert
Schnorrer-Köhler, G. (1988): Der Niederbergische Erzbezirk des Werdener Bergreviers in Nordrhein-Westfalen. Lapis 13(1): 11-35
  • Saxony
    • Erzgebirge
C. Frondel (1955): Neomesselite and Beta-roselite: two new members of the fairfieldite group.- Amer. Mineral. 40, 828-833
        • Neustädtel
Lapis 30(7/8):41-70 (2005)
Morocco
 
  • Souss-Massa-Draâ Region
    • Ouarzazate Province
      • Tazenakht
        • Bou Azer District (Bou Azzer District)
          • Aghbar
Favreau, G., Dietrich, J. E., Meisser, N., Brugger, J., Ait Haddouch, L. & Maacha, L. (2007): Bou Azzer, Morocco. Mineralogical Record 38, 345-407
Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
          • Agoudal
http://www.spiriferminerals.com/70,IV-2010---Morocco-part-II.html
          • Aït Ahmane
Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
          • Ambed
          • Bou Azer
Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
Fabre mineral specimen & photo (analyzed)
          • Ightem
Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
          • Méchoui
Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
          • Oumlil
Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
          • Tamdrost
Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
Namibia
 
  • Otjikoto Region (Oshikoto)
    • Tsumeb
Gebhard, G. (1999): Tsumeb II. A Unique Mineral Locality. GG Publishing, Grossenseifen, Germany
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2015, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: July 3, 2015 09:06:38 Page generated: June 20, 2015 13:23:04