- Steacyite
Steacyite is a
mineral , a complexsilicate containingthorium anduranium ; formula Kvariable(Ca,Na)2ThUSi8O20. It forms small brown or yellow greencrystal s, often cruciform twinned crystals. It isradioactive . It was discovered atMont-Saint-Hilaire, Quebec in 1982 and is named afterHarold Robert Steacy mineralogist. [http://www.minsocam.org/ammin/AM68/AM68_471.pdf]References
ee also
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List of minerals
*List of minerals named after people
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