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Mineralpedia Details for Hawleyite

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Hawleyite

Hawleyite

Named after Professor James Edwin Hawley, a Canadian mineralogist at Queen’s University in Kingston, Ontario. Hawleyite is a widespread but uncommon mineral and can be found in localities in Canada, the United States, the Czech Republic, Spain, Greece, Ireland, England, Russia, New Zealand, Chile, India and others. As Hawleyite is easily confused with greenockite, it is likely that there are other localities that have not been discovered as bearing Hawleyite yet. Fairly rare alteration product associated within fractures or in direct association with cadmium rich Sphalerite or other cadmium rich sulfides. Occurs as a fine, earthy, pulverulent bright orange to yellow coating.

Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/hawleyite.pdf

Formula
CdS 
Crystal System
Isometric 
Cleavage
None, None, None 
Luster
Metallic 
Color
light yellow 
Streak
light yellow 
Class
Isometric - Hextetrahedral 
Hardness
2.5-3 
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Hawleyite from Crestmore, Riverside Co., California, United States

Hawleyite
            from Crestmore, Riverside Co., California, United States

Bright orange-red veinlets from alterations of Galena.


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Hawleyite from Hanover, Grant Co., New Mexico, United States

Hawleyite
            from Hanover, Grant Co., New Mexico, United States

Orange pulverulent mineral on sandstone matrix.

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Hawleyite from Silver Queen mine, Eureka Co., Nevada, United States

Hawleyite
            from Silver Queen mine, Eureka Co., Nevada, United States

Bright yellow pulverulent crust and coatings.

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Hawleyite from Middle March, Dragoon Mts., Cochise Co., Arizona, United States

Hawleyite
            from Middle March, Dragoon Mts., Cochise Co., Arizona, United States

Bright yellow pulverulent crust or coatings.

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Hawleyite from South Rasmussen Ridge mine, Soda Springs, Caribou Co., Idaho, United States

Hawleyite
            from South Rasmussen Ridge mine, Soda Springs, Caribou Co., Idaho, United States

Bright yellow coating on black shale of Phosphoria Fm rich in submillimetric Sphalerite.

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