“Following the characterization of the mineral La-enriched calcioburbankite was encountered in a vug in a fragment of marble xenolith.”

“In the vein's central vug, ferroaxinite overlies a selvage of quartz, orthoclase, and microcline feldspar and is followed by fine-grained calcite.”

“Several Cornish mining words are used in English language mining terminology, such as costean, gossan, gunnies, kibbal, kieve and vug.”

“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.”