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Paratimroseite

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About ParatimroseiteHide

Tim Rose
Formula:
Pb2Cu4(TeO6)2(H2O)2
Colour:
Vibrant "neon" green, lime green
Lustre:
Adamantine, Dull
Hardness:
3
Specific Gravity:
6.557 (Calculated)
Crystal System:
Orthorhombic
Name:
Name in allusion to its resemblance to Timroseite.
Up to date (2018) there are approx. 10 paratimroseite specimens known and verified.


Classification of ParatimroseiteHide

Approved
Approval Year:
2009

Physical Properties of ParatimroseiteHide

Adamantine, Dull
Colour:
Vibrant "neon" green, lime green
Streak:
Very pale green
Hardness:
Hardness Data:
Estimated
Tenacity:
Brittle
Cleavage:
Distinct/Good
on {001}
Fracture:
Irregular/Uneven
Density:
6.557 g/cm3 (Calculated)

Optical Data of ParatimroseiteHide

Type:
Biaxial (-)
RI values:
n = 2.059
Max Birefringence:
δ = 0.000
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
None observed.
Pleochroism:
Visible
Comments:
X = light green, Y = Z = green.
Comments:
Average refractive index (n = 2.059) was calculated from the Gladstone-Dale relationship. 2V = large.

Chemical Properties of ParatimroseiteHide

Formula:
Pb2Cu4(TeO6)2(H2O)2
Common Impurities:
Cl

Crystallography of ParatimroseiteHide

Crystal System:
Orthorhombic
Class (H-M):
2 2 2 - Disphenoidal
Space Group:
P21 21 21
Cell Parameters:
a = 5.1943(4) Å, b = 9.6198(10) Å, c = 11.6746(11) Å
Ratio:
a:b:c = 0.54 : 1 : 1.214
Unit Cell V:
583.35 ų
Z:
2
Morphology:
Blades are elongated on [100], flattened on {001}, and exhibit the forms {001}, {010}, {120}, and {100}.
Twinning:
None observed.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.771 (76)
4.463 (32)
3.544 (44)
3.029 (100)
2.973 (48)
2.733 (30)
2.665 (41)
2.469 (40)
2.246 (34)
2.151 (30)

Type Occurrence of ParatimroseiteHide

General Appearance of Type Material:
Blades, which are intergrown in irregular clusters; also botryoids.
Place of Conservation of Type Material:
Natural History Museum of Los Angeles County (62263, 62534).
Geological Setting of Type Material:
On fracture surfaces and in small vugs in quartz veins.
Associated Minerals at Type Locality:

Synonyms of ParatimroseiteHide

Fluorescence of ParatimroseiteHide

Non-fluorescent.

Other InformationHide

Notes:
In dilute HCl paratimroseite immediately decomposes, turning opaque white, and then the residue slowly dissolves.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for ParatimroseiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
A. R. Kampf, S. J. Mills, R. M. Housley, J. Marty, and B. Thorne (2010): Lead-tellurium oxysalts from Otto Mountain near Baker, California: V. Timroseite, Pb2Cu52+(Te6+O6)2(OH)2, and paratimroseite, Pb2Cu42+(Te6+O6)2(H2O)2, two new tellurates with Te-Cu polyhedral sheets. American Mineralogist, 95, 1560-1568.

Internet Links for ParatimroseiteHide

Localities for ParatimroseiteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
USA (TL)
 
  • California
    • San Bernardino Co.
      • Silver Lake District
        • Soda Mts
          • Baker
            • Otto Mountain
A. R. Kampf, S. J. Mills, R. M. Housley, J. Marty, and B. Thorne (2010): Lead-tellurium oxysalts from Otto Mountain near Baker, California: V. Timroseite, Pb2Cu52+(Te6+O6)2(OH)2, and paratimroseite, Pb2Cu42+(Te6+O6)2(H2O)2, two new tellurates with Te-Cu polyhedral sheets. American Mineralogist, 95, 1560-1568.; Joe Marty specimens
Collected by Tim Rose. PXRD analyzed by Tony Kampf.
Mineral and/or Locality  
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