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Jacquesdietrichite

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Tachgagalt Mine, Ouarzazate Province, Souss-Massa-Draâ Region, Morocco

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Formula:
Cu
 
2
(H
 
2
BO
 
3
)(OH)
 
3
System:OrthorhombicColour:bright blue
Hardness:2
Name:
Named for Jacques Emile Dietrich, Ph.D., of Nice, France (1928- 2009), who discovered the mineral.
This page provides mineralogical data about Jacquesdietrichite.

Classification of Jacquesdietrichite

IMA status:Approved 2003
Nickel-Strunz 10th (pending) edition ID:6.AB.80

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

Type Locality:Tachgagalt Mine, Ouarzazate Province, Souss-Massa-Draâ Region, Morocco
General Appearance of Type Material:transparent bright-blue blades, sometimes intergrown into broader blades, and as aggregates of pale-blue scales

Physical Properties of Jacquesdietrichite

Lustre:Vitreous
Diaphaneity (Transparency):Transparent
Colour:bright blue
Streak:pale blue
Hardness (Mohs):2
Hardness Data:Measured
Cleavage:Perfect
perfect and very easy {100}, and good {010}and {001}
Density (measured):3.28 g/cm3
Density (calculated):3.303 g/cm3

Crystallography of Jacquesdietrichite

Crystal System:Orthorhombic
Class (H-M):mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:Pmna {P2/m 2/n 21/a}
Cell Parameters:a = 9.455Å, b = 5.866Å, c = 8.668Å
Ratio:a:b:c = 1.612 : 1 : 1.478
Unit Cell Volume:V 480.75 ų (Calculated from Unit Cell)
Z:4
X-Ray Powder Diffraction:
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)

Optical Data of Jacquesdietrichite

Type:Biaxial (-)
RI values: nα = 1.627 nβ = 1.699 nγ = 1.769
2V:Calculated: 86°
Maximum Birefringence:δ = 0.142

Chart 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 Jacquesdietrichite

Formula:
Cu
 
2
(H
 
2
BO
 
3
)(OH)
 
3
Essential elements:B, Cu, H, O
All elements listed in formula:B, Cu, H, O

Relationship of Jacquesdietrichite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
6.AB.05Hambergite
Be
 
2
(BO
 
3
)(OH)
6.AB.10Berborite
Be
 
2
(BO
 
3
)(OH,F) · H
 
2
O
6.AB.15Jeremejevite
Al
 
6
(BO
 
3
)
 
5
(F,OH)
 
3
6.AB.20Warwickite
(Mg,Fe
2+
 
)
 
3
Ti(BO
 
3
)
 
2
O
 
2
6.AB.20Yuanfuliite
Mg(Fe
3+
 
,Fe
2+
 
,Al,Ti,Mg)(BO
 
3
)O
6.AB.25Karlite
Mg
 
7
(BO
 
3
)
 
3
(OH,Cl)
 
5
6.AB.30Azoproite
(Mg,Fe
2+
 
)
 
2
(Fe
3+
 
,Ti,Mg)(BO
 
3
)O
 
2
6.AB.30Bonaccordite
Ni
 
2
Fe
3+
 
(BO
 
3
)O
 
2
6.AB.30Fredrikssonite
Mg
 
2
(Mn
3+
 
,Fe
3+
 
)(BO
 
3
)O
 
2
6.AB.30Ludwigite
Mg
 
2
Fe
3+
 
(BO
 
3
)O
 
2
6.AB.30Vonsenite
Fe
2+
2
Fe
3+
 
(BO
 
3
)O
 
2
6.AB.35Pinakiolite
(Mg,Mn
2+
 
)
 
2
Mn
3+
 
(BO
 
3
)O
 
2
6.AB.40Blatterite
(Mn
2+
 
,Mg)
 
2
(Mn
3+
 
,Sb
3+
 
,Fe
3+
 
)(BO
 
3
)O
 
2
6.AB.40Chestermanite
Mg
 
2
(Fe
3+
 
,Mn
3+
 
,Al,Sb
3+
 
)(BO
 
3
)O
 
2
6.AB.40Orthopinakiolite
(Mg,Mn
2+
 
)
 
2
Mn
3+
 
(BO
 
3
)O
 
2
6.AB.40Takéuchiite
(Mg,Mn
2+
 
)
 
2
(Mn
3+
 
,Fe
3+
 
)(BO
 
3
)O
 
2
6.AB.45Hulsite
(Fe
2+
 
,Mg)
 
2
(Fe
3+
 
,Sn)(BO
 
3
)O
 
2
6.AB.45Magnesiohulsite
(Mg,Fe
2+
 
)
 
2
(Fe
3+
 
,Sn,Mg)(BO
 
3
)O
 
2
6.AB.45Aluminomagnesiohulsite
(Mg,Fe
2+
 
)
 
2
(Al,Mg,Sn)(BO
 
3
)O
 
2
6.AB.50Fluoborite
Mg
 
3
(BO
 
3
)(F,OH)
 
3
6.AB.50Hydroxylborite
Mg
 
3
(BO
 
3
)(OH)
 
3
6.AB.55Shabynite
Mg
 
5
(BO
 
3
)(OH)
 
5
(Cl,OH)
 
2
 · 4H
 
2
O
6.AB.55Wightmanite
Mg
 
5
(BO
 
3
)O(OH)
 
5
 · 2H
 
2
O
6.AB.60Gaudefroyite
Ca
 
4
Mn
3+
2-3
(BO
 
3
)
 
3
(CO
 
3
)(O,OH)
 
3
6.AB.65Sakhaite
Ca
 
12
Mg
 
4
(BO
 
3
)
 
7
(CO
 
3
)
 
4
(OH)
 
2
Cl
6.AB.70Harkerite
Ca
 
12
Mg
 
4
Al(BO
 
3
)
 
3
(SiO
 
4
)
 
4
(CO
 
3
)
 
5
 · H
 
2
O
6.AB.75Pertsevite-(F)
Mg
 
2
(BO
 
3
)(F,OH)
6.AB.75Pertsevite-(OH)
Mg
 
2
(BO
 
3
)(OH)
6.AB.85Painite
CaZrAl
 
9
(BO
 
3
)O
 
15

Other Names for Jacquesdietrichite

Synonyms:
IMA2003-012
Other Languages:
German:Jacquesdietrichit
Russian:Жакдитрихит

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 Jacquesdietrichite

Reference List:

- +
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 Jacquesdietrichite

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    • Localities for Jacquesdietrichite

    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.
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    (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.
    Morocco
     
    • Souss-Massa-Draâ 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.
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