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Jacquesdietrichite

A valid IMA mineral species
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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. He was a French geologist/mineralogist who spent many years working in Morocco.
This page provides mineralogical data about Jacquesdietrichite.


Unique IdentifiersHide

Mindat ID:
26449
Long-form identifier:
mindat:1:1:26449:1
GUID
(UUID V4):
ac1bf195-018a-442d-af6c-1e9b303787fd

IMA Classification of JacquesdietrichiteHide

Classification of JacquesdietrichiteHide

6.AB.80

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

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
JdtIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of JacquesdietrichiteHide

Vitreous
Transparency:
Transparent
Colour:
Bright blue
Streak:
Pale blue
Hardness:
Hardness Data:
Measured
Comment:
Hardness could not be accurately measured
Tenacity:
Flexible
Cleavage:
Perfect
Perfect and very easy {100}, and good {010} and {001}
Density:
3.28(5) g/cm3 (Measured)    3.303 g/cm3 (Calculated)

Optical Data of JacquesdietrichiteHide

Type:
Biaxial (-)
RI values:
nα = 1.627(2) nβ = 1.699(2) nγ = 1.769(2)
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
Pleochroism:
Strong
Comments:
X (deep blue) > Y (medium blue) > Z (pale blue)
X = a
Y = c
Z = b

Chemistry of JacquesdietrichiteHide

Mindat Formula:
Cu2(H2BO3)(OH)3

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
Morphology:
Type material: Blades, tablets, scales. {001} is dominant with bounding forms {100} and {010}. Often tapering somewhat in thickness from tip to base.
Twinning:
None observed.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0007064JacquesdietrichiteKampf 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 16 361-3662004Tachgagalt mine, Morocco0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

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

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Near-surface Processes
23 : Subaerial aqueous alteration by non-redox-sensitive fluids (see also #47)

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.
Place of Conservation of Type Material:
Natural History Museum of Los Angeles County, California, USA; 52461.
Geological Setting of Type Material:
Probably formed as a secondary low-temperature product of hydrothermal reworking of boron-bearing manganese-oxide ore (gaudefroyite).
Associated Minerals at Type Locality:
Reference:
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.

Synonyms of JacquesdietrichiteHide

Other Language Names for JacquesdietrichiteHide

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

Common AssociatesHide

Associated Minerals Based on Photo Data:
1 photo of Jacquesdietrichite associated with MalachiteCu2(CO3)(OH)2
1 photo of Jacquesdietrichite associated with DatoliteCaB(SiO4)(OH)

Related Minerals - Strunz-mindat GroupingHide

6.AB.Rhabdoborite-(Mo)Mg12Mo6+1.33O6(BO3)6F2Hex. 6 : P63
6.AB.ChubaroviteKZn2(BO3)Cl2Trig. 3 2 : R3 2
6.AB.SavelievaiteMg2Cr3+O2(BO3)Orth. mmm (2/m 2/m 2/m) : Pbam
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,Al)2O(BO3)Orth. mmm (2/m 2/m 2/m) : Pnma
6.AB.20YuanfuliiteMg(Fe3+,Al)O(BO3)Orth. mmm (2/m 2/m 2/m) : Pnma
6.AB.25Karlite(Mg,Al)6.5(BO3)3(OH)4(◻,Cl)0.5Orth. 2 2 2 : P21 21 2
6.AB.30Azoproite(Mg,Fe2+)2(Fe3+,Ti,Mg)(BO3)O2Orth. mmm (2/m 2/m 2/m) : Pbam
6.AB.30BonaccorditeNi2Fe3+(BO3)O2Orth. mmm (2/m 2/m 2/m) : Pbam
6.AB.30FredrikssoniteMg2(Mn3+,Fe3+)(BO3)O2Orth. mmm (2/m 2/m 2/m) : Pbam
6.AB.30LudwigiteMg2Fe3+(BO3)O2Orth. mmm (2/m 2/m 2/m) : Pbam
6.AB.30VonseniteFe2+2Fe3+(BO3)O2Orth. mmm (2/m 2/m 2/m) : Pbam
6.AB.30MarinaiteCu2Fe3+O2(BO3)Mon. 2/m : P21/b
6.AB.35Pinakiolite(Mg,Mn2+)2Mn3+(BO3)O2Mon. 2/m : B2/m
6.AB.35FolvikiteSb5+Mn3+(Mg,Mn2+)10O8(BO3)4Mon. 2 : P2
6.AB.40BlatteriteSb5+3(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. mmm (2/m 2/m 2/m)
6.AB.40Orthopinakiolite(Mg,Mn2+)2Mn3+(BO3)O2Orth. mmm (2/m 2/m 2/m) : Pnnm
6.AB.40Takéuchiite(Mg,Mn2+)2(Mn3+,Fe3+)(BO3)O2Orth. mmm (2/m 2/m 2/m) : Pnnm
6.AB.45Hulsite(Fe2+,Mg)2(Fe3+,Sn)(BO3)O2Mon. 2/m : P2/m
6.AB.45Magnesiohulsite(Mg,Fe2+)2(Fe3+,Sn,Mg)(BO3)O2Mon. 2/m : P2/m
6.AB.45Aluminomagnesiohulsite(Mg,Fe2+)2(Al,Mg,Sn)(BO3)O2Mon. 2/m : P2/m
6.AB.50FluoboriteMg3(BO3)(F,OH)3Hex. 6/m : P63/m
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. 2/m
6.AB.60GaudefroyiteCa4Mn3+2-3(BO3)3(CO3)(O,OH)3Hex.
6.AB.65SakhaiteCa48Mg16(BO3)32(CO3)16 · 2(H2O,HCl)Iso. m3m (4/m 3 2/m) : Fd3m
6.AB.70HarkeriteCa48Mg16[AlSi4O15(OH)]4(BO3)16(CO3)16 · 2(H2O,HCl)Trig. 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. 6/m : P63/m
6.AB.85Rhabdoborite-(V)Mg12(V5+,Mo6+,W6+)1.5O6{[BO3]6-x[(P,As)O4]xF2-x} (x < 1)Hex. 6 : P63
6.AB.85Rhabdoborite-(W)Mg12(W6+,V5+)1.5O6{[BO3]6-x[(P,As)O4]xF2-x} Hex. 6 : P63
6.AB.90Mengxianminite(Ca,Na)2Sn2(Mg,Fe)3Al8[(BO3)(BeO4)O6]2Orth. mm2 : Fdd2

Fluorescence of JacquesdietrichiteHide

Not fluorescent

Other InformationHide

Notes:
Dissolves quickly in dilute HCl.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for JacquesdietrichiteHide

References 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 references and 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Morocco (TL)
 
  • Drâa-Tafilalet Region
    • Zagora Province
      • Agdz Cercle
        • Tansifte Caïdat
Kampf et al. (2004)
USA
 
  • Michigan
    • Ontonagon County
      • Mass City
Travis Olds collection
 
矿物 and/or 产地  
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