Edoylerite Mineral Data

Edoylerite Mineral Data +

General Edoylerite Information

Chemical Formula:

Hg++3Cr++++++O4S2

Composition:

Molecular Weight = 781.90 gm

Chromium 6.65 % Cr 12.79 % CrO₃

Mercury 76.96 % Hg 83.10 % HgO

Sulfur 8.20 % S 8.20 % S^2-

- % S -4.09 % -O=S

Oxygen 8.18 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Hg₃CrO₄S₂

Environment:

Rare alteration product of cinnabar, in a mercury deposit in silicate-carbonate rock hydrothermally altered from serpentinite.

IMA Status:

Approved IMA 1993

Locality:

Clear Creek Claim, New Idria district, San Benito County, California, USA. Link to MinDat.org Location Data.

Name Origin:

Named for Edward H. Oyler (1915-), American mineral collector specializing in mercury minerals.

Synonym:

ICSD 87733

IMA1987-006

PDF 45-1452

Edoylerite Image

Images:

Edoylerite Cinnabar

Comments: Yellow prismatic crystals of edoylerite with red cinnabar.
Location: Clear Creek Claim (Clear Creek Mine), New Idria district, San Benito Co., California, USA. Scale: Picture size 1 mm.
© Thomas Witzke / Abraxas-Verlag

Edoylerite Crystallography

Axial Ratios:

a:b:c =0.5077:1:0.5022

Cell Dimensions:

a = 7.524, b = 14.819, c = 7.443, Z = 4; beta = 118.72° V = 727.79 Den(Calc)= 7.14

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 2₁/a

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 3.212(1), 3.012(0.6), 4.88(0.5),

Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above

Burns P C , The Canadian Mineralogist , 37 (1999) p.113-118, The structure of edoylerite determined from a microcrystal

Physical Properties of Edoylerite

Cleavage:

[010] Good, [101] Fair

Color:

Greenish yellow, Orange.

Diaphaniety:

Transparent to Opaque

Fracture:

Brittle - Subconchoidal - Brittle frature with subconchoidal fragments

Habit:

Acicular - Occurs as needle-like crystals.

Habit:

Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).

Habit:

Stellate - Occurs as spherical, radial aggregates radiating from a "star" like point.

Luster:

Adamantine

Streak:

yellow

Optical Properties of Edoylerite

Optical Data:

Biaxial (?)

NCalc= 2.04 - from Gladstone-Dale relationship (KC = 0.1451) where Ncalc=Dcalc*KC+1

Pleochroism (x):

lemon yellow.

Pleochroism (y):

lemon yellow.

Pleochroism (z):

darker lemon yellow.

RL Bireflectance:

Weak.

RL Color:

Pale gray to bluish gray with brilliant pale yellow internal reflections.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Edoylerite in Air**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
400 nm	17.50	16.80
420 nm	18.00	18.00
440 nm	18.20	19.10
460 nm	17.90	19.20
480 nm	17.30	18.95
500 nm	17.00	18.50
520 nm	17.10	19.50
540 nm	17.00	19.80
560 nm	16.80	19.60
580 nm	16.60	19.55
600 nm	16.30	19.50
620 nm	16.20	19.30
640 nm	16.10	19.20
660 nm	15.95	19.10
680 nm	15.80	19.10
700 nm	15.70	18.90

**Calculated Relative Intensity Colors of Edoylerite in Air**
Relative Intensity	0%	60%	100%	120%	180%	240%	300%	360%	420%	480%	540%
R₁
R₂

Calculated Properties of Edoylerite

Electron Density:

r_electron=5.99 gm/cc
note: r_Edoylerite=7.14 gm/cc.

Fermion Index

Fermion Index = 0.2394
Boson Index = 0.7606

Photoelectric:

PE_Edoylerite=1,300.65 barns/electron
U=PE_Edoylerite x r_electron=7,791.38 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Edoylerite is Not Radioactive

Edoylerite Classification

Dana Class:

35.4.4.1 (35)Anhydrous Chromates

(35.4)with miscellaneous formulae

(35.4.4)Dana Group

35.4.4.1 Edoylerite Hg3CrO4S2 P 2₁/a 2/m

Strunz Class:

VI/F.02-05 VI - Sulfates,Chromates,Molybdates and Tungstates

VI/F - Chromates [CrO4]2-

VI/F.02 - Wattersite - Satanaite series

VI/F.02-03 Wattersite Hg4HgCrO6 C 2/c 2/m

VI/F.02-05 Edoylerite Hg3CrO4S2 P 2₁/a 2/m

VI/F.02-07 Deanesmithite Hg2Hg3CrO5S2 P1 1

VI/F.02-10 Vauquelinite Pb2Cu(CrO4)(PO4)(OH) P 2₁/n 2/m

VI/F.02-20 Fornacite Pb2Cu(CrO4)(AsO4)(OH) P 2₁/c 2/m

VI/F.02-30 Molybdofornacite Pb2Cu[(As,P)O4][(Mo,Cr)O4](OH) P 2₁/c 2/m

VI/F.02-40 Phoenicochroite Pb2(CrO4)O C 2/m 2/m

VI/F.02-50 Santanaite Pb9Pb2CrO16 P 6₃22 6 2 2

Other Edoylerite Information

References:

NAME( AntBidBlaNic5) PHYS. PROP.(37th List of New Min.,Min. Mag.,1996) OPTIC PROP.(AntBidBlaNic5)

See Also:

Links to other databases for Edoylerite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris

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Edoylerite

Hg++3Cr++++++O4S2
Dana No: 35.4.4.1 Strunz No: VI/F.02-05
Locality:

Notes: