valleriiten.
/vəˈlɪərɪʌɪt/ Mineralogy.
A hexagonal basic sulphide of iron, copper, magnesium, and aluminium found in high-temperature copper and iron deposits as minute cream or yellowish crystals.
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the world > the earth > minerals > types of mineral > sulphides and related minerals > [noun] > other sulphides
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valleriite1875
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1875 E. S. Dana in J. D. Dana Syst. Mineral. (new ed.) App. ii. 58 Valleriite... Massive, without a trace of crystalline texture.
1976 Contrib. Mineral. & Petrol. LV. 265 Chromian valleriite occurs as a replacement product of chrome spinel in the Nepean and Perseverance nickel-iron ore sulphide deposits of Western Australia.
This entry has not yet been fully updated (first published 1986; most recently modified version published online June 2018).
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n.1875