A large impressive specimen of solid inter locking Jack-straw Cerussite from the Oxide Orebody at the Tynagh Mine, Killimor, Ireland (closed in 1982). Inter grown prismatic crystals of Cerussite measure to over 3cm long, with a silky white luster. A very fine Cerussite from the mine.(One of the stories regarding specimens from the mine was that for some time when the mine was working the mine geologist kept a stack of supergene specimens for collectors. Sadly no interest was shown and they all went to the crusher. It was not until the late mineral dealer R. W. Barstow went to Ireland in the 1970s, that real interest was shown in the minerals from Tynagh. One of us visited the mine just before it closed in 1982 when it was still possible to collect specimens from the over laying Boulder Clay above the decline).