Home > Laskowski Ⅳ – July 13 > MS1884 Ruizite (Pennsylvania)
Ruizite (Pennsylvania)
- Cornwall iron mine
- Lebanon County
- Pennsylvania
- U.S.A.
- 7.1 & 3.4 & 2.8 cm – Small cabinet specimen (under 10 cm)
Ruizite is a calcium manganese silicate. Williams & Duggan (1977) named the mineral after Joe Ana Ruiz (1924-2017), pharmacist and mineral collector of Mammoth, Arizona. Fendrich et al. (2016) redetermined the crystal structure of the mineral.
Ruizite here forms brown aggregates on tremolite. Datolite and hydroxyapophyllite are also present. The ruizite from Pennsylvania surpasses the quality seen in Arizona material. From the collection of E.R. Laskowski (1949-2020), a mining engineer who retired to Tucson, Arizona.
Price: $75
Item code: MS1884
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