Dispersion, caused by light splitting into the spectrum of colours, is even greater in
cerussite than in diamond.
Commonly the brochantite is associated with
cerussite, chlorargyrite, linarite, caledonite and leadhillite.
We don't often see good minerals from Tunisia, but Laurent Gautron of 3G Environnement (3genvt@wanadoo.fr) had about 15 nice specimens of
cerussite from the Ressas Touireuf lead-zinc mine in that country: they are antiques out of an old collection Laurent bought, the mine having closed during the 1930s.
Promising shoots of pyromorphite and
cerussite were found early on, in what the miners called "phosphate ground," regarded as an indicator of rich primary ore below.
Sprays of acicular white
cerussite crystals to about 5 mm long were common in the Middle level.
The receipt of a box of his minerals was acknowledged by Wright in May: he was "very much pleased with many of them." Wright's return box was dispatched in June and contained 110 specimens, including many supergene lead and copper minerals (pyromorphite, mimetite, linarite, caledonite,
cerussite, etc.), barite, witherite, fluorite, and the Cornish rarity, fluellite.
Cerussite Tsumeb, Namibia 5 1/4" wide ex-collections J.
Last year I mentioned that Peter Megaw had a few superb thumbnails of
cerussite from a pocket discovered in late 2007 or early 2008 in the Ojuela mine, Mapimi, Durango--never productive of notable
cerussite specimens in any earlier times.
It is not likely that water out of the tap will thermally shock quartz, calcite or many other minerals sufficiently to damage them, but
cerussite and fluorite specimens, among others, can be quite sensitive to thermal shock.
French dealer Alain Martaud (alain.martaud@wanadoo.fr) shared a Holiday Inn room with Pala International, and scattered amidst other good stuff on Alain's segments of glass shelving were about 12 fine thumbnails and miniatures of
cerussite from the old M'Fouati mine, Mindouli region, Republic of the Congo (formerly French Congo), a locality known best for its large quartz-coated wulfenite crystals.