Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (14 online) Mindat Auctions

Ferrilotharmeyerite

Big Photo

Pucher Shaft, Wolfgang Maaßen Mine field, Schneeberg District, Erzgebirge, Saxony, Germany
© Thomas Witzke

Show Ferrilotharmeyerite Photos (8)
Formula:
Ca(Fe
3+
 
,Zn)
 
2
[AsO
 
4
]
 
2
 · 2(OH,H
 
2
O)
System:MonoclinicColour:Brownish-yellow, yellow
Lustre:Adamantine, GreasyHardness:3
Name:For its ferric iron relationship with Lotharmeyerite
This page provides mineralogical data about Ferrilotharmeyerite.

Classification of Ferrilotharmeyerite

IMA status:Approved 1986
Strunz 8th edition ID:7/C.31-25
Nickel-Strunz 10th (pending) edition ID:8.CG.15

8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
G : With large and medium-sized cations, RO4:H2O = 1:1
Dana 7th edition ID:40.2.11.2
Dana 8th edition ID:37.1.6.2

37 : ANHYDROUS ACID PHOSPHATES, ARSENATES AND VANADATES
1 : Miscellaneous
mindat.org URL:http://www.mindat.org/min-1495.html
Please feel free to link to this page.

Type Occurrence of Ferrilotharmeyerite

Type Locality:Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia
Place of Conservation of Type Material:Canadian Geological Survey, Ottawa, Canada NMC64573
Year of Discovery:1992
Geological Setting of type material:Dolostone hosted hydrothermal polymetallic ore deposit

Physical Properties of Ferrilotharmeyerite

Lustre:Adamantine, Greasy
Diaphaneity (Transparency):Transparent, Translucent
Colour:Brownish-yellow, yellow
Streak:Light yellow
Hardness (Mohs):3
Tenacity:Brittle
Cleavage:Distinct/Good
Good on {001}
Fracture:Irregular/Uneven
Density (measured):4.25 g/cm3
Density (calculated):4.3(8) g/cm3

Crystallography of Ferrilotharmeyerite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:B2/m (B1 1 2/m) [C2/m] {C1 2/m 1}
Cell Parameters:a = 8.997Å, b = 6.236Å, c = 7.39Å
β = 115.74°
Ratio:a:b:c = 1.443 : 1 : 1.185
Unit Cell Volume:V 373.48 ų (Calculated from Unit Cell)
Z:2
X-Ray Powder Diffraction:
Image Loading

Radiation - Copper Kα
Data Set:
Horizontal Axis: ° to ° Vertical Axis: % Source Data: Filtered Data: Peaks:
Data courtesy of RRUFF project at University of Arizona, used with permission.

Optical Data of Ferrilotharmeyerite

Type:Biaxial (+)
RI values: nα = 1.830(1) nβ = 1.835 nγ = 1.870(1)
2V:Measured: 40° , Calculated: 44°
Maximum Birefringence:δ = 0.040

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Dispersion:r > v distinct
Pleochroism:Strong
Comments:X= olive green or orange
Y= pale green or yellow
Z= colorless

Chemical Properties of Ferrilotharmeyerite

Formula:
Ca(Fe
3+
 
,Zn)
 
2
[AsO
 
4
]
 
2
 · 2(OH,H
 
2
O)
Essential elements:As, Ca, Fe, H, O
All elements listed in formula:As, Ca, Fe, H, O, Zn
Empirical Formula:
Ca(Fe
3+
 
|Zn)
 
2
[AsO
 
4
]
 
2
 · 2(OH|H
 
2
O)
Common Impurities:Cu,Al,Pb

Relationship of Ferrilotharmeyerite to other Species

Member of:Tsumcorite Group
Related Minerals - Nickel-Strunz Grouping):

- +
8.CG.05Cassidyite
Ca
 
2
(Ni
2+
 
,Mg)[PO
 
4
]
 
2
 · 2H
 
2
O
8.CG.05Collinsite
Ca
 
2
(Mg,Fe
2+
 
)[PO
 
4
]
 
2
 · 2H
 
2
O
8.CG.05Fairfieldite
Ca
 
2
(Mn
2+
 
,Fe
2+
 
)[PO
 
4
]
 
2
 · 2H
 
2
O
8.CG.05Gaitite
Ca
 
2
Zn[AsO
 
4
]
 
2
 · 2H
 
2
O
8.CG.05Messelite
Ca
 
2
(Fe
2+
 
,Mn
2+
 
)[PO
 
4
]
 
2
 · 2H
 
2
O
8.CG.05Parabrandtite
Ca
 
2
Mn
2+
 
[AsO
 
4
]
 
2
 · 2H
 
2
O
8.CG.05Talmessite
Ca
 
2
Mg[AsO
 
4
]
 
2
 · 2H
 
2
O
8.CG.05β-Uranophane
Ca(UO
 
2
)
 
2
[HSiO
 
4
]
 
2
 · 5H
 
2
O
8.CG.05Hillite
Ca
 
2
(Zn,Mg)[PO
 
4
]
 
2
 · 2 H
 
2
O
8.CG.10Brandtite
Ca
 
2
(Mn
2+
 
,Mg)[AsO
 
4
]
 
2
 · 2H
 
2
O
8.CG.10Roselite
Ca
 
2
(Co
2+
 
,Mg)[AsO
 
4
]
 
2
 · 2H
 
2
O
8.CG.10Wendwilsonite
Ca
 
2
(Mg,Co
2+
 
)[AsO
 
4
]
 
2
 · 2H
 
2
O
8.CG.10Zincroselite
Ca
 
2
Zn[AsO
 
4
]
 
2
 · 2H
 
2
O
8.CG.15Lotharmeyerite
Ca(Zn,Mn
3+
 
)
 
2
[AsO
 
4
]
 
2
 · 2(H
 
2
O,OH)
8.CG.15Mawbyite
Pb(Fe
3+
 
,Zn)
 
2
[AsO
 
4
]
 
2
 · 2(OH,H
 
2
O)
8.CG.15Mounanaite
PbFe
3+
2
[VO
 
4
]
 
2
 · 2(OH,F)
8.CG.15Thometzekite
Pb(Cu,Zn)
 
2
[AsO
 
4
,SO
 
4
]
 
2
 · 2(H
 
2
O,OH)
8.CG.15Tsumcorite
Pb(Zn,Fe
3+
 
)
 
2
[AsO
 
4
]
 
2
 · 2(H
 
2
O,OH)
8.CG.15Cobaltlotharmeyerite
Ca(Co,Fe
3+
 
,Ni)
 
2
[AsO
 
4
]
 
2
 · 2(H
 
2
O,OH)
8.CG.15Cabalzarite
Ca(Mg,Al,Fe
3+
 
)
 
2
[AsO
 
4
]
 
2
 · 2(OH,H
 
2
O)
8.CG.15Krettnichite
(Pb,Sr)(Mn
3+
 
,Co)
 
2
[VO
 
4
]
 
2
 · 2(OH,H
 
2
O)
8.CG.15Cobalttsumcorite
Pb(Co,Fe
3+
 
,Ni)
 
2
[AsO
 
4
]
 
2
 · 2(H
 
2
O,OH)
8.CG.15Nickellotharmeyerite
Ca(Ni,Fe
3+
 
,Co)
 
2
[AsO
 
4
]
 
2
 · 2(H
 
2
O,OH)
8.CG.15Manganlotharmeyerite
Ca(Mn
3+
 
,Zn)
 
2
[AsO
 
4
]
 
2
 · 2(OH,H
 
2
O)
8.CG.15Schneebergite
(Bi
3+
 
,Ca)(Co,Ni,Fe
3+
 
)
 
2
[AsO
 
4
]
 
2
 · 2(OH,H
 
2
O)
8.CG.15Nickelschneebergite
(Bi
3+
 
,Ca)(Ni,Co,Fe
3+
 
)
 
2
[AsO
 
4
]
 
2
 · 2(OH,H
 
2
O)
8.CG.20Gartrellite
Pb(Cu,Fe
3+
 
,Zn)
 
2
[AsO
 
4
,SO
 
4
]
 
2
 · 2(H
 
2
O,OH)
8.CG.20Helmutwinklerite
Pb(Zn,Cu)
 
2
[AsO
 
4
]
 
2
 · 2H
 
2
O
8.CG.20Zincgartrellite
Pb(Zn,Fe
3+
 
,Cu)
 
2
[AsO
 
4
]
 
2
 · 2(H
 
2
O,OH)
8.CG.20Rappoldite
Pb(Co,Ni,Zn)
 
2
[AsO
 
4
]
 
2
 · 2H
 
2
O
8.CG.20Phosphogartrellite
Pb(Cu,Fe
3+
 
)
 
2
[PO
 
4
,AsO
 
4
]
 
2
 · 2(H
 
2
O,OH)
8.CG.20Lukrahnite
Ca(Cu,Zn)(Fe
3+
 
,Zn)[AsO
 
4
]
 
2
 · 2(H
 
2
O,OH)
8.CG.25Pottsite
HPbBi(VO
 
4
)
 
2
·2H
 
2
O
Related Minerals - Dana Grouping):

- +
40.2.11.1Lotharmeyerite
Ca(Zn,Mn
3+
 
)
 
2
[AsO
 
4
]
 
2
 · 2(H
 
2
O,OH)

Other Names for Ferrilotharmeyerite

Synonyms:
IMA1986-024
Other Languages:
German:Ferrilotharmeyerit
Russian:Феррилотармейерит
Spanish:Ferrilotharmeyerita
Varieties:
Cobaltoan Ferrilotharmeyerite

Other Information

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 Ferrilotharmeyerite

Reference List:Ansell, H. G., Roberts, A. C., Dunn, P. J., Birch, W. D., Ansell, V. E. & Grice, J. D. (1993): Ferrilotharmeyerite, a new Ca-Zn-Fe3+ hydroxyl arsenate from Tsumeb, Namibia. Canadian Mineralgist: 30, 215-217.

Krause, W., Belendorff, K., Bernhardt, H.-J., McCammon, C., Effenberger, H. & Mikenda, W. (1998): Crystal chemistry of the tsumcorite-group minerals. New data on ferrilotharmeyerite, tsumcorite, thometzekite, mounanaite, helmutwinklerite, and a redefinition of gartrellite.: European Journal of Mineralogy: 10, 179-206.

Articles/Blogs about Ferrilotharmeyerite

Internet Links for Ferrilotharmeyerite

Search Engines:
  • Look for Ferrilotharmeyerite on Google
  • Look for Ferrilotharmeyerite images on Google
    • External Links:
  • Look for Ferrilotharmeyerite on Webmineral
  • Look for Ferrilotharmeyerite on Athena Mineralogy
  • Look for Ferrilotharmeyerite on Wikipedia
  • Look for Ferrilotharmeyerite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Ferrilotharmeyerite in the Natural History Museum (London) online catalogue
  • Ferrilotharmeyerite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • rare and unusual minerals mainly crystallized
  • Search for Ferrilotharmeyerite on minvision.com
  • Search for Ferrilotharmeyerite at Thames Valley Minerals
  • Buy from David K Joyce minerals
  • Top quality minerals from Kristalle of California
  • Buy Minerals and Crystals from Crystalarium.com
  • Buy fine minerals and gemstones from Pala International
  • Fabre Minerals - search for Ferrilotharmeyerite specimens
  • Search for - Ferrilotharmeyerite - on e-Rocks Mineral Sales & Auctions
  • Fine Minerals from Dan Weinrich Minerals
  • The Arkenstone - Fine Minerals
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

    Sponsorship:This page is currently not sponsored. Click here to sponsor this page.

    Localities for Ferrilotharmeyerite

    Hide Locality List
    The 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.
    These maps work faster with Firefox!
    (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.
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Wolfach
          • Oberwolfach
            • Rankach valley
    		WALENTA, K. (2002): Ferrilotharmeyerit von der Grube Clara. Erzgräber 16, 1-6; KOLITSCH, U., GRÖBNER, J. BLASS, G., GRAF, H.-W. & PRING, A. (2005): Neufunde aus der Grube Clara im mittleren Schwarzwald (II): Dreyerit, Gasparit-(Ce), Klinobisvanit, Kobaltkoritnigit, Metatyuyamunit, Roscoelith, Sengierit, Vésigniéit und Wakefieldit. Lapis 30 (9), 35-39; 58.
    • Saxony
      • Erzgebirge
        • Schneeberg District
    		W. Krause et al. (2002) Eur. J. Mineral. 14, 115-126
          • Wolfgang Maaßen Mine field
    		Neues Jahrb. Mineral. Mon. 558-576
    Morocco
     
    • Souss-Massa-Draâ Region
      • Ouarzazate Province
        • Tazenakht
          • Bou Azzer District
            • Aghbar
    		[var: Cobaltoan Ferrilotharmeyerite] Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
            • Aït Ahmane
    		Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
    Namibia
     
    • Otjikoto (Oshikoto) Region
      • Tsumeb
    		Can.Min.(1992) 30, 225-227
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon & Ida Ralph 1993-2008. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register.