The new mineral was found on a single small specimen from the Franklin zinc mines, collected a number of years ago by Mr. George Rowe and preserved since then as an unidentified species. The specimen, of which about a quarter was used in our study, is a narrow veinlet of almost pure roweite with only small fragments of attached ore. The new mineral is intimately associated with a silky white fibrous material, which, from its optical properties and a qualitative chemical examination, appears to be thomsonite. Franklinite, willemite and zincite are present in small amounts, the willemite rather more intimately associated with the vein material, the other two minerals presumably part of the wall of the vein.

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