Jacquesdietrichite
A valid IMA mineral species
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About Jacquesdietrichite
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 Identifiers
Mindat ID:
26449
Long-form identifier:
mindat:1:1:26449:1
GUID
(UUID V4):
(UUID V4):
ac1bf195-018a-442d-af6c-1e9b303787fd
IMA Classification of Jacquesdietrichite
Approved
IMA Formula:
Cu2BO(OH)5
Approval year:
2003
First published:
2004
Classification of Jacquesdietrichite
6.AB.80
6 : BORATES
A : Monoborates
B : BO3, with additional anions; 1(D) + OH, etc.
6 : BORATES
A : Monoborates
B : BO3, with additional anions; 1(D) + OH, etc.
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Symbol | Source | Reference |
---|---|---|
Jdt | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Jacquesdietrichite
Vitreous
Transparency:
Transparent
Colour:
Bright blue
Streak:
Pale blue
Hardness:
2 on Mohs scale
Hardness Data:
Measured
Comment:
Hardness could not be accurately measured
Tenacity:
Flexible
Cleavage:
Perfect
Perfect and very easy {100}, and good {010} and {001}
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 Jacquesdietrichite
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.
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
X = a
Y = c
Z = b
Chemistry of Jacquesdietrichite
Mindat Formula:
Cu2(H2BO3)(OH)3
Elements listed:
Crystallography of Jacquesdietrichite
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 Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
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Big Balls | Small Balls | Just Balls | Spacefill
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Big Balls | Small Balls | Just Balls | Spacefill
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2D | Stereo | Red-Blue | Red-Cyan
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CIF File Best | x | y | z | a | b | c
CIF File Best | x | y | z | a | b | c
Rotation
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
---|---|---|---|---|---|---|---|
0007064 | Jacquesdietrichite | 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 | 2004 | Tachgagalt mine, Morocco | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
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 Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Near-surface Processes | |
23 : Subaerial aqueous alteration by non-redox-sensitive fluids (see also #47) |
Type Occurrence of Jacquesdietrichite
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 Jacquesdietrichite
Other Language Names for Jacquesdietrichite
Common Associates
Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat Grouping
6.AB. | Rhabdoborite-(Mo) | Mg12Mo6+1.33O6(BO3)6F2 |
6.AB. | Chubarovite | KZn2(BO3)Cl2 |
6.AB. | Savelievaite | Mg2Cr3+O2(BO3) |
6.AB.05 | Hambergite | Be2(BO3)(OH) |
6.AB.10 | Berborite | Be2(BO3)(OH,F) · H2O |
6.AB.15 | Jeremejevite | Al6(BO3)5(F,OH)3 |
6.AB.20 | Warwickite | (Mg,Ti,Fe,Al)2O(BO3) |
6.AB.20 | Yuanfuliite | Mg(Fe3+,Al)O(BO3) |
6.AB.25 | Karlite | (Mg,Al)6.5(BO3)3(OH)4(◻,Cl)0.5 |
6.AB.30 | Azoproite | (Mg,Fe2+)2(Fe3+,Ti,Mg)(BO3)O2 |
6.AB.30 | Bonaccordite | Ni2Fe3+(BO3)O2 |
6.AB.30 | Fredrikssonite | Mg2(Mn3+,Fe3+)(BO3)O2 |
6.AB.30 | Ludwigite | Mg2Fe3+(BO3)O2 |
6.AB.30 | Vonsenite | Fe2+2Fe3+(BO3)O2 |
6.AB.30 | Marinaite | Cu2Fe3+O2(BO3) |
6.AB.35 | Pinakiolite | (Mg,Mn2+)2Mn3+(BO3)O2 |
6.AB.35 | Folvikite | Sb5+Mn3+(Mg,Mn2+)10O8(BO3)4 |
6.AB.40 | Blatterite | Sb5+3(Mn3+,Fe3+)9(Mn2+,Mg)35(BO3)16O32 |
6.AB.40 | Chestermanite | Mg2(Fe3+,Mn3+,Al,Sb3+)(BO3)O2 |
6.AB.40 | Orthopinakiolite | (Mg,Mn2+)2Mn3+(BO3)O2 |
6.AB.40 | Takéuchiite | (Mg,Mn2+)2(Mn3+,Fe3+)(BO3)O2 |
6.AB.45 | Hulsite | (Fe2+,Mg)2(Fe3+,Sn)(BO3)O2 |
6.AB.45 | Magnesiohulsite | (Mg,Fe2+)2(Fe3+,Sn,Mg)(BO3)O2 |
6.AB.45 | Aluminomagnesiohulsite | (Mg,Fe2+)2(Al,Mg,Sn)(BO3)O2 |
6.AB.50 | Fluoborite | Mg3(BO3)(F,OH)3 |
6.AB.50 | Hydroxylborite | Mg3(BO3)(OH)3 |
6.AB.55 | Shabynite | Mg5(BO3)(OH)5(Cl,OH)2 · 4H2O |
6.AB.55 | Wightmanite | Mg5(BO3)O(OH)5 · 2H2O |
6.AB.60 | Gaudefroyite | Ca4Mn3+2-3(BO3)3(CO3)(O,OH)3 |
6.AB.65 | Sakhaite | Ca48Mg16(BO3)32(CO3)16 · 2(H2O,HCl) |
6.AB.70 | Harkerite | Ca48Mg16[AlSi4O15(OH)]4(BO3)16(CO3)16 · 2(H2O,HCl) |
6.AB.75 | Pertsevite-(F) | Mg2(BO3)(F,OH) |
6.AB.75 | Pertsevite-(OH) | Mg2(BO3)(OH) |
6.AB.85 | Painite | CaZrAl9(BO3)O15 |
6.AB.85 | Rhabdoborite-(V) | Mg12(V5+,Mo6+,W6+)1.5O6{[BO3]6-x[(P,As)O4]xF2-x} (x < 1) |
6.AB.85 | Rhabdoborite-(W) | Mg12(W6+,V5+)1.5O6{[BO3]6-x[(P,As)O4]xF2-x} |
6.AB.90 | Mengxianminite | (Ca,Na)2Sn2(Mg,Fe)3Al8[(BO3)(BeO4)O6]2 |
Fluorescence of Jacquesdietrichite
Not fluorescent
Other Information
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 Jacquesdietrichite
mindat.org URL:
https://www.mindat.org/min-26449.html
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References for Jacquesdietrichite
Localities for Jacquesdietrichite
Locality List
- 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.
All localities listed without proper references should be considered as questionable.
Morocco (TL) | |
| Kampf et al. (2004) |
USA | |
| Travis Olds collection |
Quick NavTopAbout JacquesdietrichiteUnique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesCommon AssociatesStrunz-MindatFluorescence Other InformationInternet Links References Localities Locality List
Tachgagalt Mine, Tansifte Caïdat, Agdz Cercle, Zagora Province, Drâa-Tafilalet Region, Morocco