Vugh

1917, Geological Survey of New South Wales, Mineral resources, Issues 26-35, page 106, Several years later larger vughs at lower levels were met with containing a much greater number of stalactites. One vugh as large as a room contained so many that it was difficult to move about in it.

The explanation of the not infrequent pairs of hemispherical concretionary masses with polished cross-sections might lie in the miners carefully extracting the rounded and bulbous masses of fluorite projecting from vugh linings.

The largest patch seen, which is about 2 cm. across, is a milky white crystal almost filling a small vugh in otherwise barren white quartz from the 3-level.