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Description and analysis of a new Species of mineral, petterdite, A new oxychloride of lead

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posted on 2023-11-22, 10:13 authored by William Harper Twelvetrees
This apparently absolutely new chemical combination occurs in attached crystal groups in a quartz gangue containing disseminated pyrites, in the form of somewhat thin hexagonal plates, which are usually minute in size (about 5 millemetres in diameter), but occasionally reach 9 mm. dia., and, still more rarely, a larger size.
Macles are not rare, irregularly attached and implanted on each other, and on the matrix.

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Papers & Proceedings of the Royal Society of Tasmania

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51-52

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In 1843 the Horticultural and Botanical Society of Van Diemen's Land was founded and became the Royal Society of Van Diemen's Land for Horticulture, Botany, and the Advancement of Science in 1844. In 1855 its name changed to Royal Society of Tasmania for Horticulture, Botany, and the Advancement of Science. In 1911 the name was shortened to Royal Society of Tasmania..

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