178 HISLOPITE. 



Analysis, from Riddarhyttan, by Ram- 



melsberg: 



Silica ..... 33-07 

 Peroxide of iron . . . 34*78 

 Protoxide of iron . . . 17-59 

 Lime ..... 2-56 

 Magnesia . . . .0*46 

 Water 11-54 



100-00 

 From the above analysis, Eammelsberg 



deduces the formula Fe2 bi +2¥e Si + 6H. 



BB gives off water when heated: the 

 blowpipe flame rounds it off at the edges, 

 and renders it dull and magnetic. 



Decomposed by muriatic acid with the 

 formation of gelatinous silica. 



Locality, fcweden, Suarta in Suderman- 

 land, in cavities of Calc Spar. The iron 

 mines of Gillinge and Orijerfvi in Finland 

 (see Gillikgite). Bodenmais (Thraulite, 

 v.Kohell). 



Name. After Hisinger. 



Brit. Mus., Case 26. 



HiSLOPiTE, Haughfon. A Calc Spar of a 

 brilliant grass-green colour. S.G. 2 64. It 

 effervesces briskly with weak muriatic acid, 

 which dissolves the calcareous portion, 

 leaving a beautiful, green silicious skeleton, 

 which seems to be Glauconite. 



Comp. Hydrated tersilicate of protoxide 



M 1 ... 



of iron, or ^^\ 3Si + oH. 



Locality. Brought from Takli, near 

 Nagpur in India, by Mr. Hislop, after whom 

 it is named. 



HoERNESiTE, Kenngott, Haidinger. Occurs 

 in spheroidal groups of crystals, developed 

 within the free interstices into small -rhom- 

 boidal lamellje, of 36°. White and flexible, 

 with a single cleavage-plane of pearly lustre, 

 parallel to the longitudinal surface. H.l. 

 S.G. 2-474. 



Comp. 3Mg As + 81-1. 





Analysis, bv von Hauer : 





Arsenic acid . 



. 46-33 



Magnesia 



. 24-54 



Water .... 



. 29-07 



Loss .... 



. 0-06 



100-00 

 Locality. The only known specimen is in 



theVienna Imperial Museum ; it is supposed 



to come from the Bannat, probably from the 



environs of Oravicza. 

 Name. After Dr. Homes, of the Imperial 



Museum at Vienna. 



HOPEITE. 

 HoHLSPATH, Werner. \ See Chlasto- 

 HoLLOW-SPAR, Jameson, j lite. 

 HoLMESiTE, Thomson. A mineral iden- 

 tical with Clintonite. 



Comp. 2(Mg Al) + Ca Si + H. 



Analysis, by Richardson ; 



Silica 19-35 



Alumina .... 44-75 

 Peroxide of iron . . . 4-80 

 Zirconia .... 2-05 

 Magnesia .... 9-05 



Lime 11-45 



Protoxide of manganese . 1-35 

 Fluoric acid . . . 0-9 

 Water 4*55 . 



98-25 



HOLZ KUPFERERZ. WOOD-ARSENIATE 



OF Copper. 



HoLzopAL. HoLSTEiN, Werner, Bro- 

 chant. Woodstone. See Wood-opal. 



HoMiCHUNE, Breithanpt. Probably a 

 result of the decomposition of Chalcopyrite, 

 or perhaps a mixture of it with some of the 

 richer sulphides of Copper, as Erubescite or 

 Copper- glance. Crystallization pyramidal, 

 octahedral : generally compact - massive. 

 Colour more bronzv than Cbalcopvrite. 

 Streak black. H. 4 to 5. S.G. 4-47 to' 4-48. 



Comp. 3Cu2S, Fe2S5 + 2FeS = copper 43-76, 

 iron 25-81, sulphur 30-21 = 100. 



Localities. Plauen in Voigtland. asso- 

 ciated with Kupferpecherz and Malachite. 

 Lauterbach in the Harz. Kupferberg in 

 Silesia. Rheinbreitenbach on the Rhine. 

 Friedensgrube and Lichtenberg in Bavaria. 

 Near Viedendorf in Hesse, Oberlahnstein 

 in Nassau. Johanngeorgenstadt. Quad- 

 merget in Algeria. Remolinos and Tocopilla 

 in Chili. Japan. 



HONIGSTEIN, Werner. > o ai-^,,,^^ 

 • HONEYSTONE, Jameson.] ^'^ Mellite. 



Honey -YELLOW Quartz, Kirwan. See 

 Citrine. 



Huo-CANNEL. An earthy and impure 

 kind of Cannel Coal, showing the lines of 

 lamination, which are characteristic of other 

 beds of coal. 



HoPEiTE, Brewster. Rhombic : primary 

 form a right rhombic prism ; also in reni- 

 form masses and amorphous. Colour grey- 

 ish-white, reddish-brown when compact. 

 Lustre vitreous, inclining to pearly on the 

 central terminal faces. Transparent or 

 translucent. Streak white. Deeply striated 

 longitudinally on the broad lateral face 

 shown injiq. 232, other faces smooth. Sectile. 

 Fracture uneven. H.'2-5 to 3. S.G. 2-85. 



