Heazlewoodite Mineral Data +

John Betts Fine Minerals

General Heazlewoodite Information
Chemical Formula:	Ni3S2
Composition:	Molecular Weight = 240.20 gm
	Nickel  73.30 %  Ni
	Sulfur  26.70 %  S
	______
	100.00 %
Empirical Formula:	Ni3S2
Environment:	In serpentine, probably of hydrothermal origin.
IMA Status:	Valid Species (Pre-IMA) 1896
Locality:	In the USA, from Josephine Co., Oregon. From Heazlewood and Trial Harbour, Tasmania, Australia. Link to MinDat.org Location Data.
Name Origin:	For the locality at Heazlewood, Tasmania, Australia.
Synonym:	ICSD 23114
	PDF 44-1418
Heazlewoodite Image
Images:	Heazlewoodite Comments: Small crystal aggregate of heazlewoodite. Location: Jeffrey Mine, Asbestos, Quebec, Canada. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Heazlewoodite Crystallography
Axial Ratios:	a:c = 1:1.24351
Cell Dimensions:	a = 5.741, c = 7.139, Z = 3; V = 203.77 Den(Calc)= 5.87
Crystal System:	Trigonal - TrapezohedralH-M Symbol (3 2) Space Group: R 32
X Ray Diffraction:	By Intensity(I/Io): 1.83(1), 2.89(0.9), 1.66(0.8),
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	Fleet M E , American Mineralogist , 62 (1977) p.341-345, The crystal structure of heazlewoodite, and metallic bonds in sulfide minerals View Additional jPOWD Structure files for Heazlewoodite [1]
Physical Properties of Heazlewoodite
Cleavage:	None
Color:	Light bronze, Brass yellow.
Density:	5.82
Diaphaniety:	Opaque
Habit:	Disseminated - Occurs in small, distinct particles dispersed in matrix.
Habit:	Massive - Uniformly indistinguishable crystals forming large masses.
Hardness:	4 - Fluorite
Luster:	Metallic
Streak:	light bronze
Optical Properties of Heazlewoodite
RL Anisotrophism:	Strong, brown to bluish gray.
RL Color:	Cream, yellowish.
Reflectivity	Standardized Intensity (100%) Reflection Spectra of Heazlewoodite in Air λ R  ∑ R(λ)   400 nm   34.20     420 nm   40.00   440 nm   45.80   460 nm   49.90   480 nm   52.90   500 nm   55.00   520 nm   56.20   540 nm   57.00   560 nm   57.40   580 nm   57.60   600 nm   58.00   620 nm   58.40   640 nm   59.00   660 nm   59.50   680 nm   60.10   700 nm   60.80  Calculated Relative Intensity Colors of Heazlewoodite in Air Relative Intensity    0%   20%   40%   60%   80% 100% 120% 140% 160% 180% 190% R
Calculated Properties of Heazlewoodite
Electron Density:	relectron=5.67 gm/cc note: rHeazlewoodite =5.87 gm/cc.
Fermion Index	Fermion Index = 0.01028 Boson Index = 0.98972
Photoelectric:	PEHeazlewoodite = 30.84 barns/electron U=PEHeazlewoodite x relectron= 174.82 barns/cc.
Radioactivity:	GRapi = 0 (Gamma Ray American Petroleum Institute Units) Heazlewoodite is Not Radioactive
Heazlewoodite Classification
Dana Class:	2.5.3.1 (2)Sulfides - Including Selenides and Tellurides
	(2.5)where Am Bn Xp, with (m+n):p=3:2
	(2.5.3)Dana Group
	2.5.3.1 Heazlewoodite Ni3S2 R 32 3 2
Strunz Class:	II/B.12-40 II - Sulfides and sulphosalts
	II/B - Sulfides with metal: sulfur, selenium and tellurium > 1:1, Sulfides with predominant Nickel, Cobalt, Rhodium and Palladium
	II/B.12 - Rhodplumsite - Oregonite series
	II/B.12-10 Rhodplumsite Pb2Rh3S2 R 3m 3 2/m
	II/B.12-20 Shandite Pb2Ni3S2 R 3m 3 2/m
	II/B.12-25 Laflammeite! Pd3Pb2S2 C 2/m 2/m
	II/B.12-30 Parkerite Ni3(Bi,Pb)2S2 Pmam 2/m 2/m 2/m
	II/B.12-40 Heazlewoodite Ni3S2 R 32 3 2
	II/B.12-50 Oregonite Ni2FeAs2 Unk Hex
Other Heazlewoodite Information
References:	NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)
See Also:	Links to other databases for Heazlewoodite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 - WWW-MINCRYST 14 -École des Mines de Paris Search for Heazlewoodite using:   Web webmineral.com [ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO] Visit our Advertisers for Heazlewoodite : AA Mineral Specimens B & L Fine Minerals Crystal Vaults Dan Weinrich Fine Minerals Dan Weinrich Auctions e-Rocks Auctions Excalibur Minerals Exceptional Minerals Fabre Minerals Greenside Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club MineralsWeb Fine Minerals Rockshop.cz T G Fine Minerals Wrights Rock Shop Translate Heazlewoodite Mineral Data : Ask about Heazlewoodite here : Ask-A-Mineralogist from the Mineralogical Society of America Mindat.org's Discussion Groups Original Rockhounds Discussion Group Rockhounds Discussion Group on Yahoo Groups Mineral Discussion Forum from Fabre Minerals - also available in Español Print or Cut-and-Paste your Heazlewoodite Specimen Label here : Heazlewoodite Ni3S2 Dana No: 2.5.3.1 Strunz No: II/B.12-40 Locality:   Notes: