This information is ©
The Hunterian Museum and Art Gallery, University of Glasgow 2018
quartz var. chalcedony; ("onachine chalcedony") pale brown botryoidal
Not very spectacular, but an important piece: this was part of the specimen forming the centrepiece to Leroy de Barde's (1777-1828) painting "Mineraux", now in the Cabinet des Dessins, Louvre (inventory no. 23690). The Laskey catalogue (P.40) says: "A fragment of a most capital mass of the amber coloured ONACHINE CHALCEDONY, supposed to have been brought from the East Indies. It is partly fromed in cavities, which have a fine polished mamillated or bubbled surface. Sir ASHTON LEVER, in whose museum it preeminently stood the admiration of all persons, presented this piece to the late DR HUNTER, and is now considered of the greatest rarity and value. L.800 was refused for the original specimen, being valued at L.1000. An elegant drawing in water colours was made from it for the National Museum at Paris by order of the Emperor Napoleon". The exact date of the picture is not currently known. Our specimen apparently fits onto the figured specimen, now in the BM(NH), (Ian Rolfe).
SILICA : MINERAL : TUCSON EXHIBIT 2006 : LASKEY_2013 : HUNTER 2007 : :