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Reynoldsite

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Bob Reynolds
Formula:
Pb2Mn4+2O5(CrO4)
Colour:
dark orange-brown to black
Lustre:
Adamantine
Hardness:
Specific Gravity:
6.574 (Calculated)
Crystal System:
Triclinic
Name:
Named in 2011 by Anthony R. Kampf, Stuart J. Mills, R. M. Housley, R.M., Robert S. Bottrill. and Uwe Kolitsch in honor of Robert E. Reynolds [b. 1943], former Curator of Earth Sciences at the San Bernardino County Museum.
This page provides mineralogical data about Reynoldsite.


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Classification of ReynoldsiteHide

Approved
Approval Year:
2011

Pronounciation of ReynoldsiteHide

Pronounciation:
PlayRecorded byFrom
Jolyon & Katya RalphUnited Kingdom

Physical Properties of ReynoldsiteHide

Adamantine
Colour:
dark orange-brown to black
Comment:
e orange-brown color is only seen in very thin crystals in strong transmitted light
Streak:
dark orange-brown
Hardness:
4½ on Mohs scale
Tenacity:
Brittle
Cleavage:
Poor/Indistinct
parallel to {001}
Fracture:
Irregular/Uneven, Splintery
Density:
6.574 g/cm3 (Calculated)

Chemical Properties of ReynoldsiteHide

Formula:
Pb2Mn4+2O5(CrO4)
IMA Formula:
Pb2Mn4+2O5(CrO4)

Crystallography of ReynoldsiteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 5.0278(7) Å, b = 7.5865(11) Å, c = 10.2808(15) Å
α = 91.968(10)°, β = 99.405(12)°, γ = 109.159(10)°
Ratio:
a:b:c = 0.663 : 1 : 1.355
Unit Cell V:
363.81 ų (Calculated from Unit Cell)
Z:
2
Twinning:
multiple penetration and reticulated twinning by rotations on [100] and [120] and about the normal to {001}.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.427 (52)
3.254 (85)
3.052 (100)
2.923 (40)
2.502 (47)
1.982 (42)
1.769 (36)
1.637 (36)

Type Occurrence of ReynoldsiteHide

General Appearance of Type Material:
thin prisms, elongated parallel to [100] with a square cross section and a chisel-like termination
Place of Conservation of Type Material:
four cotype specimens are deposited in the Natural History Museum of Los Angeles County under catalog numbers 63559, 63560, and 63561 (Blue Bell claims) and 63562 (Red Lead mine).
Geological Setting of Type Material:
oxidation zone
Associated Minerals at Type Locality:

Synonyms of ReynoldsiteHide

Other Language Names for ReynoldsiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Pyromorphite2 photos of Reynoldsite associated with Pyromorphite on mindat.org.
Lithiophorite1 photo of Reynoldsite associated with Lithiophorite on mindat.org.
Coronadite1 photo of Reynoldsite associated with Coronadite on mindat.org.

Fluorescence of ReynoldsiteHide

Other InformationHide

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 ReynoldsiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Kampf, A.R., Mills, S.J., Housley, R.M., Bottrill, R.S. and Kolitsch, U. (2011): Reynoldsite, IMA 2011-051. CNMNC Newsletter No. 10, October 2011, page 2560.
A. R. Kampf, S. J. Mills, R. M. Housley, R. S. Bottrill and U. Kolitsch (2012): Reynoldsite, a new mineral from the Blue Bell claims, California and the Red Lead mine, Tasmania. 2012 Desert Symposium Volume, California State University, Desert Studies Consortium, 151-152.
A. R. Kampf, S. J. Mills, R. M. Housley, R. S. Bottrill and U. Kolitsch (2012): Reynoldsite, Pb2Mn4+2O5(CrO4), a new phyllomanganate-chromate from the Blue Bell claims, California and the Red Lead mine, Tasmania. Am. Mineral. 97, 1187-1192.

Internet Links for ReynoldsiteHide

Localities for ReynoldsiteHide

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.
Australia (TL)
 
  • Tasmania
    • West Coast municipality
      • Zeehan district
        • Dundas mineral field
Kampf, A.R., Mills, S.J., Housley,R.M., Bottrill, R.S. and Kolitsch, U. (2011) Reynoldsite, IMA 2011-051. CNMNC Newsletter No. 10, October 2011, page 2560; Mineralogical Magazine, 75, 2549-2561; A. R. Kampf, S. J. Mills, R. M. Housley, R. S. Bottrill and U. Kolitsch (2012): Reynoldsite, Pb2Mn4+2O5(CrO4), a new phyllomanganate-chromate from the Blue Bell claims, California and the Red Lead mine, Tasmania. Am. Mineral. 97, 1187-1192.
USA (TL)
 
  • California
    • San Bernardino Co.
      • Silver Lake District
        • Soda Mts
          • Zzyzx (Fort Soda; Soda; Soda Springs; Zzyzx Mineral Spring Resort)
Kampf, A.R., Mills, S.J., Housley, R.M., Bottrill, R.S. and Kolitsch, U. (2011): Reynoldsite, IMA 2011-051. CNMNC Newsletter No. 10, October 2011, page 2560; Mineralogical Magazine, 75, 2549-2561; A. R. Kampf, S. J. Mills, R. M. Housley, R. S. Bottrill and U. Kolitsch (2012): Reynoldsite, Pb2Mn4+2O5(CrO4), a new phyllomanganate-chromate from the Blue Bell claims, California and the Red Lead mine, Tasmania. Am. Mineral. 97, 1187-1192.
  • Nevada
    • Clark Co.
      • Spring Mts
        • Goodsprings District
A. R. Kampf, S. J. Mills, R. M. Housley, R. S. Bottrill and U. Kolitsch (2012): Reynoldsite, Pb2Mn4+2O5(CrO4), a new phyllomanganate-chromate from the Blue Bell claims, California and the Red Lead mine, Tasmania. Am. Mineral. 97, 1187-1192.
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