Home > Laskowski Ⅴ – July 20 > MS1889 Ashcroftine-(Y)
Ashcroftine-(Y)
- Mont St. Hilaire
- Québec
- Canada
- 2.2 × 2.0 × 1.3 cm – Thumbnail specimen (fits into a 2.5 cm cube)
Ashcroftine-(Y) is a hydrous sodium potassium yttrium silicate carbonate. Hey & Bannister (1933) named the species after Frederick Noel Ashcroft (1878-1949), mineral collector who bequeathed his collections to the Natural History Museum (London). Crystal structure solution by Moore et al. (1987) revealed a novel silicate framework, and revised the chemical formula of the species.
Aschroftine forms needles to 5 mm, and the largest aggregate 7 × 6 mm. Good for the mineral. From the collection of E.R. Laskowski (1949-2020), a mining engineer who retired to Tucson, Arizona.
Price: $100
Item code: MS1889
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