A glossary of mineralogy . rblei. Selenbleispath, Kersten. See Sele-nate of Lead. SELENITE. 341 I Selkncobaltlead, Nicol. See Tilker- ODITE. Selencopperlead, Nicol. See Selen-kupferblei. Selencoppersilver. See Selenkup-fersilber. Selen Cuprite, Shepard. See Berze- LIANITE. Selenic Silver. See Naumannite. Selenic Sulphur. See Selensulphur. Selenide of Copper. See Berzeli-anite. Selenide op Lead. See Clausthal-ite. Selenide of Mercury. See Onofrite, Selenide of Mercury and Lead. SeeLehrbrachite. Seleniet of Lead. See Clausthalite. Selenite, Jameson, Brochant. The namegenerally applied to the tra
A glossary of mineralogy . rblei. Selenbleispath, Kersten. See Sele-nate of Lead. SELENITE. 341 I Selkncobaltlead, Nicol. See Tilker- ODITE. Selencopperlead, Nicol. See Selen-kupferblei. Selencoppersilver. See Selenkup-fersilber. Selen Cuprite, Shepard. See Berze- LIANITE. Selenic Silver. See Naumannite. Selenic Sulphur. See Selensulphur. Selenide of Copper. See Berzeli-anite. Selenide op Lead. See Clausthal-ite. Selenide of Mercury. See Onofrite, Selenide of Mercury and Lead. SeeLehrbrachite. Seleniet of Lead. See Clausthalite. Selenite, Jameson, Brochant. The namegenerally applied to the transparent varietiesof Gypsum. Occurs generally in flattishcrystals, the primary form of which is aright oblique angled prism. Cleaves withease and brilliancy into thin laminae, Avhichare flexible but not elastic. Colour white,or various shades of yellow, grey, red,brown and violet. Lustre shining, some-times pearly. More or less to the nail. Streak white. H. 1-5to 2. 2-28 to 2-33. Fig. 378. Fig. Fig. 379. Fig. 381. Comp. Hydrated sulphate of lime, or Ca S + 2H=lime 32-56, sulphuric acid 46-51,water 20-93 = 100. BB becomes white and opaque, and fuseswith difficulty to a white enamel. Does not effervesce with acids, when pure. Localities. —English. In the London Clay ofLondon and Surrey; the Isle of Sheppey; ofWalton-on-the Naze, in Essex. The Eoceneclays of the Isle of Wight, at Alum Bay, and onthe north coast between Newton and Hill, Oxfordshire, in clay, in largetransparent greyish-white crystals. to 381. Newhav^en, in flattish crys-tals, 6 to 8 inches long. Telsibrd, 342 SELENIUM. Gloucestershire, in Lias. Aust Passageand Pyle Hill, near Bristol; and at Penarthand Cardiff, Glamorganshire. Moor, Cumberland, Jig. 878. NearPollcstone, in Kent, in gault. Epworth, inLincolnshire. Somerset. Warwickshire,&c. &c. — Scotch. Banks of the Whit-adder, Berwickshire, in red clay. Moffat,Dumfries shire. Hurlpt
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectmineral, bookyear1861
