Jacquesdietrichite Mineral Data

General Jacquesdietrichite Information

Chemical Formula:

Cu2[BO(OH)2](OH)3

Composition:

Molecular Weight = 238.94 gm

Copper 53.19 % Cu 66.58 % CuO

Boron 4.52 % B 14.57 % B₂O₃

Hydrogen 2.11 % H 18.85 % H₂O

Oxygen 40.18 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Cu₂BO(OH)₅

Environment:

Hydrothermal origin found in small cavities in gaudefroyite-calcite rock and as inclusions in calcite.

IMA Status:

Approved IMA 2004 (Dana # Added)

Locality:

Tachgagalt vein Mn deposit near Ouarzazate, Morocco. Link to MinDat.org Location Data.

Name Origin:

Named for Jacques Emile Dietrich (1926-), French geologist who collected the specimens.

Synonym:

IMA2003-012

Jacquesdietrichite Crystallography

Axial Ratios:

a:b:c =1.6118:1:1.4776

Cell Dimensions:

a = 9.455, b = 5.866, c = 8.668, Z = 4; V = 480.75 Den(Calc)= 3.30

Crystal System:

Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 4.734(1)(200), 3.941(0.9)(102), 1.922(0.5)(322),2.489(0.5)(220), 2.545(0.45)(302), 1.712(0.4), 1.838(0.4), 3.192(0.4),

Physical Properties of Jacquesdietrichite

Cleavage:

{100} Perfect, {010} Good, {001} Good

Color:

Blue.

Density:

3.28

Diaphaneity:

Translucent

Fracture:

Flexible - Flexible fragments.

Habit:

Bladed - Aggregates of thin lath-like crystals (e.g. kyanite).

Habit:

Tabular - Form dimensions are thin in one direction.

Hardness:

2 - Gypsum

Luster:

Vitreous (Glassy)

Streak:

pale blue

Optical Properties of Jacquesdietrichite

Gladstone-Dale:

CI meas= -0.021 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.014 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2116,KPDmeas= 0.2129,KC= 0.2086
Ncalc = 1.68 - 1.69

Optical Data:

Biaxial (-), a=1.627, b=1.699, g=1.769, bire=0.1420

Calculated Properties of Jacquesdietrichite

Electron Density:

Bulk Density (Electron Density)=3.20 gm/cc
note: Specific Gravity of Jacquesdietrichite =3.30 gm/cc.

Fermion Index:

Fermion Index = 0.0091991366
Boson Index = 0.9908008634

Photoelectric:

PE_{Jacquesdietrichite}= 23.18 barns/electron
U=PE_{Jacquesdietrichite} x rElectron Density= 74.27 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Jacquesdietrichite is Not Radioactive

Jacquesdietrichite Classification

Dana Class:

06.04.13.01 (06)Hydroxides and Oxides Containing Hydroxyl

(06.04)containing multiple cations

(06.04.13)Dana Group

06.04.13.01 Jacquesdietrichite! Cu2[BO(OH)2](OH)3 P nma 2/m 2/m 2/m

Strunz Class:

06.AB.80 06 - BORATES

06.A - Monoborates

06.AB -BO3, with additional anions; 1(D) + OH, etc.

06.AB.80 Jacquesdietrichite! Cu2[BO(OH)2](OH)3 P nma 2/m 2/m 2/m

Other Jacquesdietrichite Information

References:

NAME( AmMin, 90:519) PHYS. PROP.(AmMin, 90:519) OPTIC PROP.(AmMin, 90:519)

See Also:

Links to other databases for Jacquesdietrichite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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Print or Cut-and-Paste your Jacquesdietrichite Specimen Label here :

Jacquesdietrichite

Cu2[BO(OH)2](OH)3
Dana No: 06.04.13.01 Strunz No: 06.AB.80
Locality:

Notes:

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