Apologies, I don't have a scanner, but from Collins, Observations on the West of England Mining Region (p. 531)
Maudlin Mine, Lanlivery
A very ancient copper, tin and iron mine, a sort of carbona under a gozzan, with another gozzan below.In 1864 was 70 fathoms below adit (30), had 36-inch pumping engine and a 32-foot water wheel for stamping and winding and employed forty-two people. In 1870 was 110 fathoms deep and employed twenty people. The records of production are more than usually deficient. It is known that considerable quantities of tin, copper, and iron (partly magnetic) ores have been raised from time to time, but only records available are the following: 1823-4 and 1867-8, sold 110 tons of copper ore; and 1853-6 sold 2 tons of black tin.
From Collins, A Handbook to the Mineralogy of Cornwall and Devon p. 62
Lanlivery, Maudlin Mines
Calcedony, cassiterite, chalybite, chlorite, covellite, cronstedite, fluor, garnet, jasper, melanterite, mispickel, opal, pyrites, pyrrhotite, scheelite, wolfram
According to MinDat the following minerals have been reported
Actinolite, Apatite, Arsenopyrite, Cassiterite, Chalcocite, Chalcopyrite, Chlorite Group, Covellite, Cronstedtite, Cronstedtite-2H2, Cuprite, Danalite ?, Fluorapatite, Fluorite, Garnet Group, Melanterite, Opal, Pyrite, Pyrrhotite, Quartz, Chalcedony, Jasper, Scheelite, Siderite, Sphalerite, Tenorite, Tremolite, Wolframite
The provenance of Danalite from this locality has yet to be confirmed as the original claim by the mineral collecting fraud Arthur Kingsbury has been invalidated.
“There is something fascinating about science. One gets such wholesale returns of conjecture out of such a trifling investment of fact." Mark Twain