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:

Arsenogoyazite Olivenite

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

Images:

Alumopharmacosiderite Olivenite

Comments: Minute white specks of alumopharmacosiderite, with tan olivenite and unknown orange material.
Location: Gold Hill, Gold Hill District (Clifton District), Deep Creek Mts, Tooele Co., Utah, USA. Scale: Picture Size 2 mm.
© 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 - Prismatic H-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 java applet does not work in some browsers because of security restrictions.

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 ï¿½ 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 :

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:

Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.