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Abstract

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.

Item Type:	Article
Authors/Creators:	Twelvetrees, William Harper
Keywords:	Royal Society of Tasmania, Van Diemens Land, VDL, Hobart Town, natural sciences, proceedings, records
Journal or Publication Title:	Papers & Proceedings of the Royal Society of Tasmania
Collections:	Royal Society Collection Royal Society Collection > Papers & Proceedings of the Royal Society of Tasmania
Additional Information:	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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