PALLADIUM. 



Potash 0-99 



Water 12-16 



100-00 



BB fuses readily to a shining magnetic 

 globule. 



Dissolves easily in acid. 



Localities. Forms the basis of basaltic 

 tufa and conglomerate in Iceland, France, 

 Germany, the Azores, the Canary, Cape de 

 Verde, Galapagos and Tortugas Islands. 



Name. After one of the localities, Pala- 

 gonia, in the Val di Noto, Sicily. 



Palagonite is considered by Bunsen to 

 have resulted from an alteration of pyroxene 

 rocks, the iron in which has become con- 

 verted into peroxide. 



Palladium. See Native Palladium. 



Palladium Gold. See Porpezite. 



Palladium Ochre, or Palladiuivi 

 Oxide. A brown ochreous substance asso- 

 ciated with the Palladium-gold of Brazil. 



Panabase, Beudant. (From rrxv, all, 

 and /3a<r/?, base.^ See Tetrahbdrite. 



Panther- Agate. See Leoistine. 



Paper-Coal, or Papier-Kohle. The 

 name given to certain layers of Lignite in 

 consequence of their leaf-like structure. 



Paracolumbite, C. U. Shepard. A 

 mineral occurring in grains and short irre- 

 gular seams of an iron-black colour, very 

 sparingly disseminated through a large 

 boulder, near Taunton in Massachusetts. 

 It consists probably of oxides of iron and 

 uranium, combined with a metallic (not 

 titanic) acid. 



Paragonite, Schafhaiitl. Allied to 

 biaxial Mica {Damourite). Colour yellow- 

 ish and greyish-white. Glittering. Trans- 

 lucent at the edges. Slightly imctuous to 

 the touch. Somewhat harder than Rock 

 Salt; easily scraped with a knife 



Comp. 2iM si + 9Na Si + Pe si^. 



Analysis, by Schafhdutl : 

 Silica • . . . . 50-20 

 Alumina .... 35-90 

 Peroxide of iron . . . 2-36 



Soda 8-45 



Water 2-45 



99-36 



BB alone, unchanged ; with borax forms 

 a clear glass. 



Not acted on by acids. 



Locality. St. Gotthard, in mica-slate. 



Paralogitb, N. NordensMold. Occurs 

 in four- and eight-sided prisms. Colour 



PARGASITE. 273 



white, blue, or reddish-blue. Lustre 

 vitreous. H. 7-5. S.G. 2-6. 

 Analysis, by Thoreld : 



Silica . ' . . . . 44-95 

 Alumina .... 26*89 



Lime 14-44 



Magnesia . . . .1-01 



Soda 10-86 



Protoxide of manganese . trace 

 Loss by ignition . . .1-85 



100-00 

 BB fuses easily to a colourless blebby 



glass. 



Locality. Bucharei in Siberia, associated 



with Lapis Lazuli and Felspar. 



Paraluminite, Steinberg. Probably an 



impure Websterite. 



Comp. Al S + 15H = Websterite + M H«. 



Analysis, by Martens : 

 Alumina .... 35*96 

 Sulphuric acid . . . 14*04 

 Water 50*00 



100-00 

 Localities. Halle and Mori in Prussia. 

 Paranthine, HaUy. A name for certain 

 compact varieties and crystals of white and 

 pale blue Scapolite. 

 Analysis, from Malsjo, by v. Rath .* 



Silica 47-54 



Alumina .... 24-69 

 Peroxide of iron . . . trace 



Lime 16*84 



Soda 3*55 



Potash .... 0*85 

 Magnesia .... 2*18 

 Water 1-75 



97*06 



Locality. The limestone quarries at Mals- 

 jo, in Wermland, Sweden. 



Name, From fra.(fa.v9iaj^ to qlance on. 



Parastilbite, v. Waliershausen. A 

 mineral from Borgarfiord, resembling Stil- 

 bite, but differing from it in the measure- 

 ment of its angles. 



Paratomous Augite Spar, Mohs. See 

 AuGiTE and Pyroxene. 



Paratomous Kouphone Spar, Mohs. 

 See Harmotoinie. ' 



Paratomous Lead Baryte, Haidinger. 

 See Caledonite. 



Paratomous Lime Haloid, Mohs. 

 See Ankerite. 



Pargasite, or Noble Hornblende. 

 Occurs disseminated in roundish semi- 

 ci-ystalliue masses and in six-sided prisms 



T 



