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Gilmarite

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About GilmariteHide

Formula:
Cu3(AsO4)(OH)3
Colour:
Greenish blue
Lustre:
Vitreous
Hardness:
3
Crystal System:
Triclinic
Name:
Named for Gilbert Mari (1944-), mineralogist at the University of Nice-Sophia Antipolis, France.
This page provides mineralogical data about Gilmarite.


Classification of GilmariteHide

Approved
8.BE.25

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
E : With only medium-sized cations, (OH, etc.):RO4 > 2:1

Physical Properties of GilmariteHide

Vitreous
Colour:
Greenish blue
Streak:
Greenish blue
Hardness:

Optical Data of GilmariteHide

Type:
Biaxial (-)
RI values:
nα = 1.760 nβ = 1.800 nγ = 1.830
2V:
Measured: 77° , Calculated: 80°
Max Birefringence:
δ = 0.070
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
r > v

Chemical Properties of GilmariteHide

Formula:
Cu3(AsO4)(OH)3
IMA Formula:
Cu2+3(AsO4)(OH)3

Crystallography of GilmariteHide

Crystal System:
Triclinic

Type Occurrence of GilmariteHide

Synonyms of GilmariteHide

Other Language Names for GilmariteHide

German:Gilmarit
Spanish:Gilmarita

Common AssociatesHide

Associated Minerals Based on Photo Data:
Conichalcite18 photos of Gilmarite associated with Conichalcite on mindat.org.
Arhbarite12 photos of Gilmarite associated with Arhbarite on mindat.org.
Malachite4 photos of Gilmarite associated with Malachite on mindat.org.
Cornwallite2 photos of Gilmarite associated with Cornwallite on mindat.org.
Clinoclase1 photo of Gilmarite associated with Clinoclase on mindat.org.
Azurite1 photo of Gilmarite associated with Azurite on mindat.org.
Chrysocolla1 photo of Gilmarite associated with Chrysocolla on mindat.org.
Olivenite1 photo of Gilmarite associated with Olivenite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

8.BE.05AugeliteAl2(PO4)(OH)3Mon. 2/m : B2/m
8.BE.10GrattarolaiteFe3+3(PO4)O3Trig. 3m : R3m
8.BE.15CornetiteCu3(PO4)(OH)3Orth. mmm (2/m 2/m 2/m) : Pbca
8.BE.20ClinoclaseCu3(AsO4)(OH)3Mon. 2/m : P21/b
8.BE.25ArhbariteCu2Mg(AsO4)(OH)3Tric. 1 : P1
8.BE.30AllactiteMn2+7(AsO4)2(OH)8Mon. 2/m : P21/b
8.BE.30FlinkiteMn2+2Mn3+(AsO4)(OH)4Orth.
8.BE.30RaadeiteMg7(PO4)2(OH)8Mon. 2/m
8.BE.30ArganditeMn7(VO4)2(OH)8Mon. 2/m : P21/m
8.BE.35Chlorophoenicite(Mn,Mg)3Zn2(AsO4)(OH,O)6Mon. 2/m : B2/m
8.BE.35Magnesiochlorophoenicite(Mg,Mn)3Zn2(AsO4)(OH,O)6Mon. 2/m : B2/m
8.BE.40Gerdtremmelite(Zn,Fe)(Al,Fe)2(AsO4)(OH)5Tric.
8.BE.45DixeniteCuMn2+14Fe2+(SiO4)2(As5+O4)(As3+O3)5(OH)6Trig.
8.BE.45Hematolite(Mn,Mg,Al,Fe3+)15(As5+O4)2(As3+O3)(OH)23Trig. 3 : R3
8.BE.45KraissliteZn3(Mn,Mg)25(Fe3+,Al)(As3+O3)2[(Si,As5+)O4]10(OH)16Orth. 2 2 2 : C2 2 21
8.BE.45McgoverniteMn19Zn3(AsO4)3(AsO3)(SiO4)3(OH)21Trig. 3m (3 2/m)
8.BE.45Arakiite(Zn,Mn2+)(Mn2+,Mg)12(Fe3+,Al)2(As5+O4)2(As3+O3)(OH)23Mon.
8.BE.45Turtmannite(Mn,Mg)22.5Mg3-3x((V5+,As5+)O4)3(As3+O3)x(SiO4)3O5-5x(OH)20+xTrig.
8.BE.45CarlfrancisiteMn2+3(Mn2+,Mg,Fe3+,Al)42[As3+O3]2(As5+O4)4[(Si,As5+)O4]6[(As5+,Si)O4]2(OH)42 Trig. 3m (3 2/m) : R3c
8.BE.50SynadelphiteMn2+9(As5+O4)2(As3+O3)(OH)9 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pnma
8.BE.55Holdenite(Mn2+,Mg)6Zn3(AsO4)2(SiO4)(OH)8Orth. mmm (2/m 2/m 2/m) : Ccca
8.BE.60KoliciteMn2+7Zn4(AsO4)2(SiO4)2(OH)8Orth. mmm (2/m 2/m 2/m) : Cmca
8.BE.65Sabelliite(Cu,Zn)2Zn(AsO4,SbO4)(OH)3Trig. 3 : P3
8.BE.70JarosewichiteMn2+3Mn3+(AsO4)(OH)6Orth. 2 2 2
8.BE.75TheisiteCu5Zn5(AsO4,SbO4)2(OH)14Orth.
8.BE.80CoparsiteCu4(AsO4,VO4)O2ClOrth.
8.BE.85WaterhouseiteMn2+7(PO4)2(OH)8Mon. 2/m : P21/b

Other InformationHide

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 GilmariteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Sarp, H. and Černý, R. (1999): Gilmarite, Cu3(AsO4)(OH)3, a new mineral: its description and crystal structure. European Journal of Mineralogy: 11, 549-555.

Internet Links for GilmariteHide

Localities for GilmariteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Chile
 
  • Antofagasta Region
    • Antofagasta Province
      • Santa Catalina
Chemical analysis by Dr. Jochen Schluter (Curator of Hamburg Mineral Museum) (Maurizio Dini).
Maurizio Dini collection - quantitative analysis; Leon Hupperichs collection
Czech Republic
 
  • Hradec Králové Region
    • Náchod (Nachod)
Vrtiška L., Števko M., Sejkora J., Malíková R. (2016): Gilmarit, triklinický Cu3(AsO4)(OH)3 z Bělovsi u Náchoda - první výskyt v České republice. Bulletin Mineralogicko-Petrologickeho Oddelení Narodního Muzea v Praze, 22, 2, 230-233 (in Czech with English abstract). https://www.researchgate.net/publication/316430070_Gilmarite_triclinic_Cu3AsO4OH3_from_Beloves_near_Nachod_-_the_first_occurrence_in_Czech_Republic
France (TL)
 
  • Provence-Alpes-Côte d'Azur
    • Alpes-Maritimes
      • Guillaumes
        • Daluis
European Journal of Mineralogy(1999) 11, 549-555
Germany
 
  • Baden-Württemberg
    • Black Forest
      • Wolfach
        • Oberwolfach
          • Rankach valley
U. Kolitsch, J. Gröbner, G. Blaß and H.-W. Graf (2007): Neufunde aus der Grube Clara im mittleren Schwarzwald (III): Cerianit-(Ce), Dravit, Florencit-(La), Gilmarit, Olenit und Scotlandit. Lapis 32 (6), 19-23; 70.
Hungary
 
  • Baranya Co.
    • Mecsek Mts
      • Pécs
HOM Collection 2008
USA
 
  • Utah
    • Juab Co.
      • East Tintic Mts
        • Tintic District
          • Eureka
Eckhard D. Stuart collection; PXRD by A. R. Kampf
Mineral and/or Locality  
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