Olivenite Mineral Data

General Olivenite Information

Chemical Formula:

Cu2AsO4(OH)

Composition:

Molecular Weight = 283.02 gm

Copper 44.91 % Cu 56.21 % CuO

Arsenic 26.47 % As 40.61 % As₂O₅

Hydrogen 0.36 % H 3.18 % H₂O

Oxygen 28.27 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Cu₂(AsO₄)(OH)

IMA Status:

Valid Species (Pre-IMA) 1824

Locality:

Carharrack mine, Gwennap, Cornwall, England, GB Link to MinDat.org Location Data.

Name Origin:

From the German olivernerz, literally "olive" ore, in allusion to its typical color.

Name Pronunciation:

Olivenite + Pronunciation

Synonym:

ICSD 1112

PDF 42.1353

Wood arsenate

Wood copper

Olivenite Image

Images:

Olivenite

Comments: Dark green crystals of olivenite on matrix.
Location: Majuba Hill mine, Pershing County, Nevada, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Images:

Olivenite Arsenogoyazite

Comments: White micro-botryoids of arsenogoyazite with light green acicular crystal sprays of olivenite and dark green malachite on brown limonite.
Location: Centennial Eureka Mine, Juab County, Utah. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Olivenite Crystallography

Axial Ratios:

a:b:c =1.0465:1:0.7223

Cell Dimensions:

a = 8.5894, b = 8.2073, c = 5.9285, Z = 4; beta = 90.088° V = 417.93 Den(Calc)= 4.50

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 2₁/n

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

By Intensity(I/I_o): 2.98(1), 4.82(0.9), 5.91(0.7),

Forms:

Mouse
Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize
Keyboard
S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu
Help on Above

Forms: ( 1 1 0) ( 0 1 0) ( 1 0 1) ( 1 0 0) ( 0 1 1)

Warning: this large pop-up is very compute intensive and may not work well with some computers.

Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above

Burns P C , Hawthorne F C , The Canadian Mineralogist , 33 (1995) p.885-888, Rietveld refinement of the crystal structure of olivenite: A twinned monoclinic, structure

View Additional jPOWD Structure files for Olivenite
[1]

Physical Properties of Olivenite

Cleavage:

{110} Indistinct, {010} Indistinct, {110} Indistinct

Color:

Olive green, Yellowish brown, Dirty white, Blackish green, Liver brown.

Density:

4.1 - 4.4, Average = 4.25

Diaphaneity:

Subtransparent to translucent to opaque

Fracture:

Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.

Habit:

Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).

Habit:

Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)

Habit:

Reniform - "Kidney like" in shape (e.g.. hematite).

Hardness:

3 - Calcite

Luminescence:

Non-fluorescent.

Luster:

Vitreous - Greasy

Streak:

yellowish green

Optical Properties of Olivenite

Gladstone-Dale:

CI meas= -0.108 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.047 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1802,KPDmeas= 0.1908,KC= 0.1722
Ncalc = 1.71 - 1.77

Optical Data:

Biaxial (+), a=1.772, b=1.785-1.81, g=1.863, bire=0.0910, 2V(Calc)=46-84, 2V(Meas)=80-90. Dispersion relatively strong.

Calculated Properties of Olivenite

Electron Density:

Bulk Density (Electron Density)=4.20 gm/cc
note: Specific Gravity of Olivenite =4.50 gm/cc.

Fermion Index:

Fermion Index = 0.0001362093
Boson Index = 0.9998637907

Photoelectric:

PE_Olivenite= 38.64 barns/electron
U=PE_Olivenite x rElectron Density= 162.20 barns/cc.

Radioactivity:

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

Olivenite Classification

Dana Class:

41.06.06.01 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen

(41.06)where (A)2 (XO4) Zq

(41.06.06)Olivenite Group

41.06.06.01 Olivenite Cu2AsO4(OH) P 2₁/n 2/m

41.06.06.02 Libethenite Cu2(PO4)(OH) Pnnm 2/m 2/m 2/m

41.06.06.03 Adamite Zn2(AsO4)(OH) Pnnm 2/m 2/m 2/m

41.06.06.04 Eveite Mn2(AsO4)(OH) Pnnm 2/m 2/m 2/m

41.06.06.05 Zincolibethenite! CuZn(PO4)OH Pnnm 2/m 2/m 2/m

41.06.06.06 Zincolivenite! CuZn(AsO4)(OH) Pnnm 2/m 2/m 2/m

Strunz Class:

08.BB.30 08 - PHOSPHATES, ARSENATES, VANADATES

08.B - Phosphates, etc. with Additional Anions, without H2O

08.BB -With only medium-sized cations, (OH, etc.):RO4 £ 1:1

08.BB.30 Eveite Mn2(AsO4)(OH) Pnnm 2/m 2/m 2/m

08.BB.30 Adamite Zn2(AsO4)(OH) Pnnm 2/m 2/m 2/m

08.BB.30 Libethenite Cu2(PO4)(OH) Pnnm 2/m 2/m 2/m

08.BB.30 Olivenite Cu2AsO4(OH) P 2₁/n 2/m

08.BB.30 Zincolibethenite! CuZn(PO4)OH Pnnm 2/m 2/m 2/m

08.BB.30 Zincolivenite! CuZn(AsO4)(OH) Pnnm 2/m 2/m 2/m

Other Olivenite Information

References:

NAME( Sinkankas66) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Sinkankas66)

See Also:

Links to other databases for Olivenite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - HyperPhysics
12 - MinDAT
13 - Mineralienatlas (Deutsch)
14 - Online Mineral Museum
15 - QUT Mineral Atlas
16 - Ruff.Info
17 - WWW-MINCRYST
18 - theimage

Search for Olivenite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Olivenite :

A Bijoux Google Search for Olivenite
Adam's Minerals Google Search for Olivenite
Cape Minerals Google Search for Olivenite
Dakota Matrix Minerals Google Search for Olivenite
Excalibur Mineral Corp. Google Search for Olivenite
Exceptional Minerals Google Search for Olivenite
John Betts Fine Minerals Search for Olivenite
McDougall Minerals Google Search for Olivenite
Mineral News Website Link
Rock and Mineral Shows Google Search for Olivenite
Weinrich Minerals, Inc. Google Search for Olivenite

Ask about Olivenite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

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

Olivenite

Cu2AsO4(OH)
Dana No: 41.06.06.01 Strunz No: 08.BB.30
Locality:

Notes: