Timroseite
A valid IMA mineral species
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About Timroseite
Formula:
Pb2Cu5(TeO6)2(OH)2
Colour:
Olive to lime green, dark olive green
Lustre:
Adamantine, Dull
Hardness:
2½
Specific Gravity:
6.982 (Calculated)
Crystal System:
Orthorhombic
Name:
Named in honor of Mr. Timothy Rose, American geochemist, mineral collector/micromounter, of Tracy, California, who collected studied material.
This page provides mineralogical data about Timroseite.
Unique Identifiers
Mindat ID:
39836
Long-form identifier:
mindat:1:1:39836:3
IMA Classification of Timroseite
Approved
IMA Formula:
Pb2+2Cu2+5(Te6+O6)2(OH)2
Approval year:
2009
First published:
2010
Type description reference:
Kampf, A. R., Mills, S. J., Housley, R. M., Marty, J., Thorne, B. (2010) Lead-tellurium oxysalts from Otto Mountain near Baker, California: V. Timroseite, Pb2Cu2+5(Te6+O6)2(OH)2, and paratimroseite, Pb2Cu2+4(Te6+O6)2(H2O)2, two new tellurates with Te-Cu polyhedral sheets. American Mineralogist, 95 (10) 1560-1568 doi:10.2138/am.2010.3514
Classification of Timroseite
7.BB.65
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
B : Sulfates (selenates, etc.) with additional anions, without H2O
B : With medium-sized cations
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
B : Sulfates (selenates, etc.) with additional anions, without H2O
B : With medium-sized cations
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Tim | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Pronunciation of Timroseite
Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Jolyon Ralph | United Kingdom |
Physical Properties of Timroseite
Adamantine, Dull
Colour:
Olive to lime green, dark olive green
Streak:
Very pale yellowish green
Hardness:
2½ on Mohs scale
Hardness Data:
Estimated
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
6.982 g/cm3 (Calculated)
Optical Data of Timroseite
Type:
Biaxial (+)
RI values:
n = 2.113
Surface Relief:
Very High (positive)
Relative to Canada balsam mounting medium (n ≈ 1.537).
Relative to Canada balsam mounting medium (n ≈ 1.537).
This shows the grain boundary and Becke line effect under plane-polarised
light, based on the contrast between this mineral's average refractive
index and the mounting medium. It does not take into account mineral
colouration.
In focus
Dispersion:
None observed.
Pleochroism:
Visible
Comments:
X = greenish yellow, Y = yellowish green, Z = dark green.
Comments:
Average refractive index (n = 2.113) was calculated from the Gladstone-Dale relationship. 2V = large.
Chemistry of Timroseite
Mindat Formula:
Pb2Cu5(TeO6)2(OH)2
Element Weights:
Common Impurities:
Cl
Crystallography of Timroseite
Crystal System:
Orthorhombic
Class (H-M):
mm2 - Pyramidal
Space Group:
Pmn21
Cell Parameters:
a = 11.5340(5) Å, b = 9.6225(4) Å, c = 5.2000(2) Å
Ratio:
a:b:c = 1.199 : 1 : 0.54
Unit Cell V:
577.13 ų
Z:
2
Morphology:
Observed forms: {001}, {110} and {010}.
Twinning:
No twinning was observed.
Comment:
Original space group setting: P21nm
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
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Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
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Display Options
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Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
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Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
View
CIF File Best | x | y | z | a | b | c
CIF File Best | x | y | z | a | b | c
Rotation
Stop | Start
Stop | Start
Labels
Console Off | On | Grey | Yellow
Console Off | On | Grey | Yellow
Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0017721 | Timroseite | Kampf A R, Mills S J, Housley R M, Marty J, Thorne B (2010) Lead-tellurium oxysalts from Otto Mountain near Baker, California: V. Timroseite, Pb2Cu2+5(Te6+O6)2(OH)2, and paratimroseite, Pb2Cu2+4(Te6+O6)2(H2O)2, two new tellurates with Te-Cu polyhedral sheets American Mineralogist 95 1560-1568 | ![]() | 2010 | Otto Mountain, Baker, California | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.693 Å | (43) |
| 3.578 Å | (44) |
| 3.383 Å | (30) |
| 3.008 Å | (84) |
| 2.950 Å | (88) |
| 2.870 Å | (30) |
| 2.732 Å | (100) |
| 1.983 Å | (30) |
| 1.785 Å | (33) |
| 1.475 Å | (36) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47e : [Vanadates, chromates, manganates] | |
| 47h : [Near-surface oxidized, dehydrated minerals] |
Type Occurrence of Timroseite
Co-Type Localities:
General Appearance of Type Material:
Irregular rounded crystalline masses or diamond-shaped plates in subparallel sheaf-like aggregates.
Place of Conservation of Type Material:
Natural History Museum of Los Angeles County (62531, 62532, 62533).
Geological Setting of Type Material:
On fracture surfaces and in small vugs in quartz veins.
Associated Minerals at Type Locality:
Reference:
Kampf, A. R., Mills, S. J., Housley, R. M., Marty, J., Thorne, B. (2010) Lead-tellurium oxysalts from Otto Mountain near Baker, California: V. Timroseite, Pb2Cu2+5(Te6+O6)2(OH)2, and paratimroseite, Pb2Cu2+4(Te6+O6)2(H2O)2, two new tellurates with Te-Cu polyhedral sheets. American Mineralogist, 95 (10) 1560-1568 doi:10.2138/am.2010.3514
Synonyms of Timroseite
Other Language Names for Timroseite
Dutch:Timroseiet
German:Timroseit
Common Associates
Associations Based on Photo Data:
| 34 photos of Timroseite associated with Khinite | Pb2+Cu2+3[Te6+O6](OH)2 |
| 17 photos of Timroseite associated with Quartz | SiO2 |
| 14 photos of Timroseite associated with Native Gold | Au |
| 9 photos of Timroseite associated with Chlorargyrite | AgCl |
| 5 photos of Timroseite associated with Thorneite | Pb6(Te6+2O10)(CO3)Cl2(H2O) |
| 4 photos of Timroseite associated with Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| 4 photos of Timroseite associated with Fuettererite | Pb3Cu2+6Te6+O6(OH)7Cl5 |
| 3 photos of Timroseite associated with Caledonite | Pb5Cu2(SO4)3(CO3)(OH)6 |
| 3 photos of Timroseite associated with Fluorite | CaF2 |
| 3 photos of Timroseite associated with Housleyite | Pb6CuTe6+4O18(OH)2 |
Related Minerals - Strunz-mindat Grouping
| 7.BB. | Iskandarovite | Sb6O7(SO4)2 |
| 7.BB. | Brumadoite | Cu3(Te6+O4)(OH)4 · 5H2O |
| 7.BB. | Novikovite | (NH4)4Mo6+2Mo5+2O8(SO4)5 |
| 7.BB.10 | Hauckite | Fe3+3(Mg,Mn2+)24Zn18(SO4)4(CO3)2(OH)81 |
| 7.BB.15 | Antlerite | Cu3(SO4)(OH)4 |
| 7.BB.20 | Dolerophanite | Cu2(SO4)O |
| 7.BB.25 | Brochantite | Cu4(SO4)(OH)6 |
| 7.BB.25 | Ramaccioniite | Cu4[SeO4](OH)6 |
| 7.BB.30 | Vergasovaite | Cu3(SO4)(MoO4,SO4)O |
| 7.BB.30 | Cupromolybdite | Cu3O(MoO4)2 |
| 7.BB.35 | Klebelsbergite | Sb4O4(SO4)(OH)2 |
| 7.BB.35 | Tavagnascoite | Bi4O4(SO4)(OH)2 |
| 7.BB.40 | Schuetteite | Hg2+3O2(SO4) |
| 7.BB.45 | Paraotwayite | Ni(OH)2-x(SO4,CO3)0.5x |
| 7.BB.50 | Xocomecatlite | Cu3(TeO4)(OH)4 |
| 7.BB.55 | Pauflerite | (V4+O)SO4 |
| 7.BB.60 | Grandviewite | Cu3Al2(SO4)(OH)10 · H2O |
| 7.BB.70 | Glikinite | Zn3O(SO4)2 |
| 7.BB.80 | Mojaveite | Cu6[Te6+O4(OH)2](OH)7Cl |
| 7.BB.85 | Paratimroseite | Pb2Cu4(TeO6)2(H2O)2 |
Fluorescence of Timroseite
Non-fluorescent.
Other Information
Notes:
In dilute HCl, timroseite 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.
Internet Links for Timroseite
mindat.org URL:
https://www.mindat.org/min-39836.html
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References for Timroseite
Reference List:
Kampf, A. R., Mills, S. J., Housley, R. M., Marty, J., Thorne, B. (2010) Lead-tellurium oxysalts from Otto Mountain near Baker, California: V. Timroseite, Pb2Cu2+5(Te6+O6)2(OH)2, and paratimroseite, Pb2Cu2+4(Te6+O6)2(H2O)2, two new tellurates with Te-Cu polyhedral sheets. American Mineralogist, 95 (10) 1560-1568 doi:10.2138/am.2010.3514
Localities for Timroseite
Showing 14 localities.
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and 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).
All localities listed without proper references should be considered as questionable.
USA | |
| Walstrom (n.d.) |
| Marek Chorazewicz (2022) |
| Kampf et al. (2010) |
| Kampf et al. (2010) +2 other references | |
| Marek Chorazewicz (2019) | |
| Joe Marty specimens +3 other references |
| Rocks & Minerals 86:132-142 | |
| King (n.d.) +1 other reference | |
| Housley R. | |
| Thorne (n.d.) | |
| Thorne (n.d.) | |
| Marek Chorazewicz (2024) |
| Collected by Ron Gibbs and XRD ... |
| Marty et al. (2010) |
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The
Bird Nest E3, Otto Mountain, Baker, Soda Mountains, Silver Lake Mining District, San Bernardino County, California, USA