Edoylerite
A valid IMA mineral species
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About Edoylerite
Ed Oyler
Formula:
Hg2+3(CrO4)S2
Colour:
Canary yellow to orangish yellow
Lustre:
Adamantine
Specific Gravity:
7.11 (Calculated)
Crystal System:
Monoclinic
Name:
Named in honor of Edward Henry Oyler (4 February 1915, Fresno, California, USA – 9 March 2004, San Martin, California, USA), mineral collector specializing in mercury minerals. He discovered several new minerals at the Clear Creek locality, edoylerite being one of them.
Unique Identifiers
Mindat ID:
1354
Long-form identifier:
mindat:1:1:1354:9
GUID
(UUID V4):
(UUID V4):
38d56d9d-8a8b-43b7-9c6c-b53178cf6053
IMA Classification of Edoylerite
Approved
IMA Formula:
Hg2+3(Cr6+O4)S2
Approval year:
1987
First published:
1993
Classification of Edoylerite
7.FB.25
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
F : Chromates
B : With additional O,V, S, Cl
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
F : Chromates
B : With additional O,V, S, Cl
Dana 7th ed.:
35.4.4.1
35.4.4.1
35 : ANHYDROUS CHROMATES
4 : Miscellaneous
35 : ANHYDROUS CHROMATES
4 : Miscellaneous
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 |
|---|---|---|
| Eoy | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Edoylerite
Adamantine
Transparency:
Transparent, Translucent, Opaque
Colour:
Canary yellow to orangish yellow
Streak:
Yellow
Tenacity:
Brittle
Cleavage:
Distinct/Good
Good {010}. Fair {101}.
Good {010}. Fair {101}.
Fracture:
Sub-Conchoidal
Density:
7.11 g/cm3 (Calculated)
Optical Data of Edoylerite
Type:
Biaxial
Reflectivity:
| Wavelength | R1 | R2 |
|---|---|---|
| 400nm | 17.5% | 16.8% |
| 420nm | 18.0% | 18.0% |
| 440nm | 18.2% | 19.1% |
| 460nm | 17.9% | 19.2% |
| 480nm | 17.3% | 18.95% |
| 500nm | 17.0% | 18.5% |
| 520nm | 17.1% | 19.5% |
| 540nm | 17.0% | 19.8% |
| 560nm | 16.8% | 19.6% |
| 580nm | 16.6% | 19.55% |
| 600nm | 16.3% | 19.5% |
| 620nm | 16.2% | 19.3% |
| 640nm | 16.1% | 19.2% |
| 660nm | 15.95% | 19.1% |
| 680nm | 15.8% | 19.1% |
| 700nm | 15.7% | 18.9% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 19.8%.
R1 shown in black, R2 shown in red
Colour in reflected light:
Pale gray to bluish gray
Internal Reflections:
Brilliant pale yellow
Pleochroism:
Weak
Comments:
X = Y = lemon-yellow; Z = darker lemon-yellow.
Chemistry of Edoylerite
Mindat Formula:
Hg2+3(CrO4)S2
Elements listed:
Crystallography of Edoylerite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Setting:
P21/c
Cell Parameters:
a = 7.52 Å, b = 14.81 Å, c = 7.44 Å
β = 118.72°
β = 118.72°
Ratio:
a:b:c = 0.508 : 1 : 0.502
Unit Cell V:
726.67 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Elongated on [101] and showing {010}, {111}, {001}, {101}.
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
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CIF File Best | x | y | z | a | b | c
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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) |
|---|---|---|---|---|---|---|---|
| 0005595 | Edoylerite | Burns P C (1999) The structure of edoylerite determined from a microcrystal The Canadian Mineralogist 37 113-118 |  | 1999 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 5.94 Å | (40) |
| 4.88 Å | (50) |
| 3.212 Å | (100) |
| 3.012 Å | (60) |
| 2.307 Å | (40) |
| 2.208 Å | (35) |
| 2.185 Å | (40) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 3b: Earth’s earliest hydrosphere | >4.45 |
| 13 : Hadean serpentinization | |
| Stage 7: Great Oxidation Event | <2.4 |
| 47e : [Vanadates, chromates, manganates] | |
| 47h : [Near-surface oxidized, dehydrated minerals] |
Type Occurrence of Edoylerite
General Appearance of Type Material:
Acicular to prismatic crystals.
Place of Conservation of Type Material:
Canadian Geological Survey, Ottawa, Canada, 65026; National Museum of Natural History, Washington, D.C., USA, 165270.
Associated Minerals at Type Locality:
Reference:
Erd, R.C., Roberts, A.C., Bonardi, M., Criddle, A.J., Gabe, E.J., Le Page, Y. (1993) Edoylerite Hg2+3Cr6+O4S2 a new mineral from the Clear Creek claim San Benito County, California. The Mineralogical Record: 24: 471-475.
Synonyms of Edoylerite
Other Language Names for Edoylerite
Common Associates
Associated Minerals Based on Photo Data:
| 42 photos of Edoylerite associated with Cinnabar | HgS |
| 15 photos of Edoylerite associated with Quartz | SiO2 |
| 5 photos of Edoylerite associated with CCUK-8 | (Hg, CrO4, S, H2O)? |
| 2 photos of Edoylerite associated with Mercury | Hg |
| 1 photo of Edoylerite associated with Wattersite | [Hg2]2+2Hg2+[CrO4]O2 |
| 1 photo of Edoylerite associated with Deanesmithite | [Hg2]2+Hg2+3[CrO4]S2O |
| 1 photo of Edoylerite associated with Opal | SiO2 · nH2O |
Related Minerals - Strunz-mindat Grouping
| 7.FB.05 | Phoenicochroite | Pb2(CrO4)O |
| 7.FB.05 | Georgerobinsonite | Pb4(CrO4)2(OH)2FCl |
| 7.FB.10 | Santanaite | Pb11(CrO4)O12 |
| 7.FB.15 | Wattersite | [Hg2]2+2Hg2+[CrO4]O2 |
| 7.FB.20 | Deanesmithite | [Hg2]2+Hg2+3[CrO4]S2O |
| 7.FB.30 | Reynoldsite | Pb2Mn4+2O5(CrO4) |
Other Information
Notes:
Photosensitive, turning olive-green after several months exposure.
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 Edoylerite
mindat.org URL:
https://www.mindat.org/min-1354.html
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References for Edoylerite
Reference List:
Erd, Richard C., Bonardi, Maurizio, Criddle, Alan J., Roberts, Andrew C., Page, Yvon Le, Gabe, Eric J. (1993) Edoylerite Hg2+3Cr6+O4S2 a new mineral from the Clear Creek Claim, San Benito County, California. The Mineralogical Record, 24 (6) 471-475
Localities for Edoylerite
symbol to view information about a locality.
The 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 (TL) | |
| Dunning +1 other reference |
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Clear Creek claim, Goat Mountain, San Benito County, California, USA