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Jacquesdietrichite

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About JacquesdietrichiteHide

Formula:
Cu2(H2BO3)(OH)3
Colour:
bright blue
Lustre:
Vitreous
Hardness:
2
Specific Gravity:
3.28
Crystal System:
Orthorhombic
Name:
Named for Jacques Emile Dietrich, Ph.D., of Nice, France (1926- 2009), who discovered the mineral.
This page provides mineralogical data about Jacquesdietrichite.


Classification of JacquesdietrichiteHide

Approved
Approval Year:
2003
6.AB.80

6 : BORATES
A : Monoborates
B : BO3, with additional anions; 1(D) + OH, etc.

Physical Properties of JacquesdietrichiteHide

Vitreous
Transparency:
Transparent
Colour:
bright blue
Streak:
pale blue
Hardness:
Hardness Data:
Measured
Cleavage:
Perfect
perfect and very easy {100}, and good {010}and {001}
Density:
3.28 g/cm3 (Measured)    3.303 g/cm3 (Calculated)

Optical Data of JacquesdietrichiteHide

Type:
Biaxial (-)
RI values:
nα = 1.627 nβ = 1.699 nγ = 1.769
2V:
Calculated: 86°
Max Birefringence:
δ = 0.142
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Comments:
X (deep blue) > Y (medium blue) > Z (pale blue)
X = a
Y = c
Z = b

Chemical Properties of JacquesdietrichiteHide

Formula:
Cu2(H2BO3)(OH)3
IMA Formula:
Cu2BO(OH)5

Crystallography of JacquesdietrichiteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pmna
Cell Parameters:
a = 9.455 Å, b = 5.866 Å, c = 8.668 Å
Ratio:
a:b:c = 1.612 : 1 : 1.478
Unit Cell V:
480.75 ų (Calculated from Unit Cell)
Z:
4

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.734 (100)
3.941 (90)
3.192 (40)
2.545 (45)
2.489 (50)
1.922 (50)
1.838 (40)
1.712 (40)

Type Occurrence of JacquesdietrichiteHide

General Appearance of Type Material:
transparent bright-blue blades, sometimes intergrown into broader blades, and as aggregates of pale-blue scales

Synonyms of JacquesdietrichiteHide

Other Language Names for JacquesdietrichiteHide

Simplified Chinese:羟硼铜石
Traditional Chinese:羥硼銅石

Related Minerals - Nickel-Strunz GroupingHide

6.AB.05HambergiteBe2(BO3)(OH)Orth. mmm (2/m 2/m 2/m) : Pbca
6.AB.10BerboriteBe2(BO3)(OH,F) · H2OTrig.
6.AB.15JeremejeviteAl6(BO3)5(F,OH)3Hex. 6/m : P63/m
6.AB.20Warwickite(Mg,Ti,Fe,Cr,Al)2O(BO3)Orth.
6.AB.20YuanfuliiteMg(Fe3+,Al)O(BO3)Orth.
6.AB.25KarliteMg7(BO3)3(OH,Cl)5Orth.
6.AB.30Azoproite(Mg,Fe2+)2(Fe3+,Ti,Mg)(BO3)O2Orth.
6.AB.30BonaccorditeNi2Fe3+(BO3)O2Orth.
6.AB.30FredrikssoniteMg2(Mn3+,Fe3+)(BO3)O2Orth.
6.AB.30LudwigiteMg2Fe3+(BO3)O2Orth.
6.AB.30VonseniteFe2+2Fe3+(BO3)O2Orth.
6.AB.35Pinakiolite(Mg,Mn2+)2Mn3+(BO3)O2Mon.
6.AB.40BlatteriteSb5+(Mn3+,Fe3+)9(Mn2+,Mg)35(BO3)16O32Orth. mmm (2/m 2/m 2/m) : Pnnm
6.AB.40ChestermaniteMg2(Fe3+,Mn3+,Al,Sb3+)(BO3)O2Orth.
6.AB.40Orthopinakiolite(Mg,Mn2+)2Mn3+(BO3)O2Orth.
6.AB.40Takéuchiite(Mg,Mn2+)2(Mn3+,Fe3+)(BO3)O2Orth.
6.AB.45Hulsite(Fe2+,Mg)2(Fe3+,Sn)(BO3)O2Mon.
6.AB.45Magnesiohulsite(Mg,Fe2+)2(Fe3+,Sn,Mg)(BO3)O2Mon.
6.AB.45Aluminomagnesiohulsite(Mg,Fe2+)2(Al,Mg,Sn)(BO3)O2Mon. 2/m
6.AB.50FluoboriteMg3(BO3)(F,OH)3Hex.
6.AB.50HydroxylboriteMg3(BO3)(OH)3Hex. 6/m : P63/m
6.AB.55ShabyniteMg5(BO3)(OH)5(Cl,OH)2 · 4H2OMon.
6.AB.55WightmaniteMg5(BO3)O(OH)5 · 2H2OMon.
6.AB.60GaudefroyiteCa4Mn3+2-3(BO3)3(CO3)(O,OH)3Hex.
6.AB.65SakhaiteCa12Mg4(BO3)7(CO3)4(OH)2ClIso. m3m (4/m 3 2/m) : Fd3m
6.AB.70HarkeriteCa12Mg4Al(BO3)3(SiO4)4(CO3)5 · H2OTrig. 3m (3 2/m) : R3m
6.AB.75Pertsevite-(F)Mg2(BO3)(F,OH)Orth. mm2 : Pna21
6.AB.75Pertsevite-(OH)Mg2(BO3)(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
6.AB.85PainiteCaZrAl9(BO3)O15Hex.

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 JacquesdietrichiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Kampf, A.R. & Favreau, G. (2004): Jacquesdietrichite, Cu2[BO(OH)2](OH)3, a new mineral from the Tachgagalt mine, Morocco: Description and crystal structure. European Journal of Mineralogy, 16, 361-366.

Internet Links for JacquesdietrichiteHide

Localities for JacquesdietrichiteHide

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.
Morocco (TL)
 
  • Drâa-Tafilalet Region
    • Ouarzazate Province
Kampf, A.R. & Favreau, G. (2004): Jacquesdietrichite, Cu2[BO(OH)2](OH)3, a new mineral from the Tachgagalt mine, Morocco: Description and crystal structure. European Journal of Mineralogy, 16, 361-366.
Mineral and/or Locality  
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