Ulrichite Mineral Data
General Ulrichite Information
Chemical Formula:
CaCu(UO2)(PO4)2•4(H2O)
Composition:
Molecular Weight = 635.66 gm
Calcium 6.30 % Ca 8.82 % CaO
Uranium 37.45 % U 42.48 % UO2
Copper 10.00 % Cu 12.51 % CuO
Phosphorus 9.75 % P 22.33 % P2 O5
Hydrogen 1.27 % H 11.34 % H2 O
Oxygen 35.24 % O
______ ______
100.00 % 97.48 % = TOTAL OXIDE
Empirical Formula:
CaCu(UO2 )(PO4 )2 •4(H2 O)
IMA Status:
Approved IMA 1988
Locality:
Lake Boga, Victoria, Australia. Link to MinDat.org Location Data.
Name Origin:
Named for G.H.F. Ulrich.
Name Pronunciation:
Ulrichite + Pronunciation
Synonym:
ICSD 54139
PDF 46-1302
Ulrichite Image
Images:
Images:
Ulrichite
Comments: Green, acicular crystals of ulrichite on matrix. Co-type specimen (?) collected by the discoverer, Anthony Fraser.
Location: Lake Boga granite quarry, Lake Boga, Victoria, Australia.
Scale: Picture size 2 mm.
© Paul M. Schumacher
Ulrichite Crystallography
Axial Ratios:
a:b:c =1.8273:1:1.8592
Cell Dimensions:
a = 12.784, b = 6.996, c = 13.007, Z = 4; beta = 91.92° V = 1,162.65 Den(Calc)= 3.63
Crystal System:
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m
X Ray Diffraction:
By Intensity(I/Io ): 6.389(1), 3.193(0.45), 2.879(0.2),
Physical Properties of Ulrichite
Cleavage:
{???} Perfect
Color:
Green, Lime green.
Diaphaneity:
Transparent to Translucent
Habit:
Acicular - Occurs as needle-like crystals.
Habit:
Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)
Hardness:
3.5 - Copper Penny
Luster:
Vitreous (Glassy)
Streak:
white
Optical Properties of Ulrichite
Gladstone-Dale:
CI calc = -0.07 (Fair) - where the CI = (1-KPDcalc /KC ) KPDcalc = 0.173,KC = 0.1617 Ncalc = 1.59
Optical Data:
Biaxial (-), a=1.622, g=1.634, bire=0.0120
Calculated Properties of Ulrichite
Electron Density:
Bulk Density (Electron Density)=3.32 gm/cc note: Specific Gravity of Ulrichite =3.63 gm/cc.
Fermion Index:
Fermion Index = 0.002952289 Boson Index = 0.997047711
Photoelectric:
PEUlrichite = 933.86 barns/electronU=PEUlrichite x r electron =3,103.77 barns/cc.
Radioactivity:
GRapi = 2,922,420.69 (Gamma Ray American Petroleum Institute Units)
Concentration of Ulrichite per GRapi unit = 342.18 (PPB)
Ulrichite is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram.
Estimated Maximum U.S. Postal Shipping Size
(10 mRem/hr limit, Unshielded 10 cm box)
10.41 ± 2.60 grams of pure Ulrichite .
Estimated Maximum U.S. Postal Shipping Size
(10 mRem/hr limit, Unshielded 100 cm box)
1040.8 ±260.20 grams of pure Ulrichite .
Estimated Radioactivity from Ulrichite - very strong
Specimen Size Weight/Volume (Sphere) *
Calculated Activity Bequerols (Bq)
Calculated Activity Curies (Ci)
Estimated Activity GR(api)
Estimated Exposure (mRem** )/hr If Held in Hand For One Hour
1000 gm / 8.07 cm
67,028,713
1.81E-03
2,922,420.69
960.80
100 gm / 3.75 cm
6,702,871
1.81E-04
292,242.07
96.08
10 gm / 1.74 cm
670,287
1.81E-05
29,224.21
9.61
1 gm / 8.07 mm
67,029
1.81E-06
2,922.42
0.96
0.1 gm / 3.75 mm
6,703
1.81E-07
292.24
0.10
0.01 gm / 1.74 mm
670
1.81E-08
29.22
0.01
0.001 gm / 0.81 mm
67
1.81E-09
2.92
0.00
Weight of pure Ulrichite in grams (gm) and Calculated Diameter of a Sphere with a Density of 3.63 gm/cc. *
Goverment Estimate of Average Annual Exposure (
360 mRem )
**
Note: 10 microsieverts/hr = 1 mRem/hr **
Max Permissable Adult Dose 50,000 mRem/yr (hands), 15,000 mRem/yr (eyes)
Lethal Dose LD(50) Exposure 400,000 to 500,000 mRem
Ulrichite Classification
Dana Class:
40.02a.33.01 (40) Hydrated Phosphates, etc
(40.02a) where A++ (B++)2 (XO4) � x(H2O), containing (UO2)++
(40.02a.33) Dana Group
40.02a.33.01 Ulrichite CaCu(UO2)(PO4)2•4(H2O) C 2/m 2/m
Strunz Class:
08.EA.15 08 - PHOSPHATES, ARSENATES, VANADATES
08.E - Uranyl Phosphates and Arsenates
08.EA -UO2:RO4 = 1:2
08.EA.15 Ulrichite CaCu(UO2)(PO4)2•4(H2O) C 2/m 2/m
Other Ulrichite Information
References:
PHYS. PROP.(Am.Min.,Vol.75,p243,1990) OPTIC PROP.(Am.Min.,Vol.75,p243,1990)
See Also:
Links to other databases for Ulrichite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - Uranium Minerals
Search for Ulrichite using:
[AOL ]
[Bing ]
[Dog Pile ]
[GeoScienceWorld ]
[HotBot ]
[Ixquick ]
[Lycos ]
[MAMMA ]
[Scirus ]
[Teoma ]
[WebCrawler ]
[Wikipedia ]
[YAHOO ]
Visit our Advertisers for Ulrichite :
Ask about Ulrichite 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
Espa�ol
Print or Cut-and-Paste your Ulrichite Specimen Label here :
Ulrichite
CaCu(UO2)(PO4)2•4(H2O)
Dana No: 40.02a.33.01 Strunz No: 08.EA.15
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.