﻿Geology 
  and 
  Mineralogy. 
  479 
  

  

  also 
  the 
  percentage 
  composition 
  (2) 
  calculated 
  from 
  the 
  formula 
  

   TIAsS. 
  

  

  S 
  As 
  Tl 
  

  

  1. 
  19-02 
  [21-47] 
  59*51 
  = 
  100 
  

  

  2. 
  18-67 
  21-87 
  59-46 
  = 
  100 
  

  

  The 
  locality 
  is 
  Allchar 
  in 
  Macedonia 
  where 
  it 
  occurs 
  implanted 
  

   upon 
  realgar. 
  — 
  Math. 
  Nat. 
  Ber. 
  Ungarn, 
  xii, 
  1895. 
  

  

  Ktlindrite. 
  A 
  new 
  lead 
  mineral 
  from 
  the 
  Mina 
  Santa 
  Cruz 
  at 
  

   Poopo, 
  Bolivia. 
  It 
  occurs 
  in 
  cylindrical 
  forms 
  and 
  in 
  capillary 
  

   crystals. 
  The 
  luster 
  is 
  metallic 
  ; 
  color 
  blackish 
  lead-gray 
  ; 
  

   hardness 
  2*5 
  to 
  3; 
  specific 
  gravity 
  5-42. 
  An 
  analysis 
  gave 
  

   the 
  results 
  below 
  (1) 
  which 
  are 
  compared 
  (2) 
  with 
  the 
  percentage 
  

   composition 
  for 
  the 
  formula 
  Pb 
  6 
  Sb 
  2 
  Sn 
  6 
  S 
  2 
  . 
  

  

  S 
  Sn 
  Sb 
  Pb 
  Ag 
  Fe 
  

  

  1. 
  24-50 
  26*37 
  8'73 
  35-41 
  0'62 
  3-00 
  = 
  98*63 
  

  

  2. 
  23-46 
  24-90 
  8'36 
  43'28 
  = 
  100. 
  

  

  The 
  description 
  is 
  given 
  by 
  Frenzel 
  in 
  Jahrb. 
  Min., 
  ii, 
  125, 
  1893. 
  

  

  Andorite. 
  A 
  new 
  silver 
  ore 
  described 
  by 
  Krenner 
  from 
  

   Felsobanya. 
  It 
  occurs 
  in 
  short 
  prismatic 
  crystals 
  belonging 
  to 
  

   the 
  orthorhombic 
  system 
  ; 
  luster 
  metallic 
  ; 
  color 
  dark 
  lead-gray 
  

   or 
  steel-gray 
  to 
  black. 
  An 
  analysis 
  by 
  Loczka 
  is 
  given 
  below 
  (1) 
  

   and 
  also 
  the 
  percentage 
  composite 
  in 
  (2) 
  required 
  by 
  the 
  formula 
  

  

  .gPbSb.S,. 
  

  

  

  

  

  

  

  s 
  

  

  Sb 
  

  

  Pb 
  

  

  Ag 
  

  

  Cu 
  Fe(Zn, 
  Mn) 
  insol. 
  

  

  

  1. 
  23-32 
  

  

  41-91 
  

  

  22-07 
  

  

  11-31 
  

  

  0-69 
  0-70 
  0-04 
  = 
  

  

  : 
  100-04 
  

  

  2. 
  22-14 
  

  

  41-52 
  

  

  23-88 
  

  

  12-46 
  

  

  = 
  

  

  100- 
  

  

  It 
  is 
  named 
  for 
  Andor 
  von 
  Semsey. 
  — 
  Zeitschr. 
  Kryst., 
  xxiii, 
  497. 
  

  

  Magneto 
  stibi 
  an. 
  A 
  supposed 
  new 
  mineral 
  from 
  the 
  Sjogrufva, 
  

   Wermland, 
  Sweden. 
  It 
  resembles 
  magnetite 
  in 
  external 
  appear- 
  

   ance, 
  and 
  occurs 
  in 
  feebly 
  magnetic 
  grains 
  imbedded 
  in 
  crystal- 
  

   line 
  limestone. 
  An 
  analysis 
  was 
  made 
  of 
  material 
  consisting 
  

   largely 
  of 
  impurities 
  (68-6 
  p. 
  c.) 
  ; 
  after 
  deducting 
  these 
  the 
  results 
  

   given 
  below 
  were 
  obtained 
  : 
  

  

  Sb 
  2 
  5 
  

  

  As 
  2 
  5 
  

  

  FeO 
  

  

  MnO 
  

  

  Fe 
  2 
  3 
  

  

  9'83 
  

  

  1-54 
  

  

  17-16 
  

  

  59-11 
  

  

  12-36 
  

  

  Described 
  by 
  Igelstrom 
  in 
  Zeitschr. 
  Kryst., 
  xxiii, 
  212. 
  

  

  Htdrocalcite. 
  Fine 
  crystalline 
  needles 
  with 
  strong 
  double 
  

   refraction, 
  observed 
  in 
  a 
  mountain 
  milk 
  from 
  a 
  cave 
  near 
  Wolms- 
  

   dorf, 
  Silesia, 
  have 
  received 
  this 
  name 
  ; 
  the 
  author, 
  K. 
  Kosmann, 
  

   assigns 
  to 
  them 
  the 
  composition 
  CaC0 
  3 
  + 
  2H 
  2 
  0. 
  — 
  Zeitschr. 
  Kryst., 
  

   xxiv, 
  196. 
  

  

  Stibiotantalite. 
  A 
  name 
  given 
  by 
  G. 
  A. 
  Goyder 
  to 
  a 
  par- 
  

   tially 
  examined 
  substance 
  occurring 
  in 
  the 
  tin-bearing 
  sands 
  of 
  

   Greenbush, 
  West 
  Australia, 
  and 
  containing 
  Ta 
  2 
  5 
  51*13, 
  Nb 
  2 
  O 
  

   7-56, 
  Sb 
  2 
  3 
  40-23.— 
  Ibid, 
  p. 
  205. 
  

  

  Am. 
  Jour. 
  Sci 
  — 
  Third 
  Series, 
  Vol. 
  XLIX, 
  No 
  294 
  —June, 
  1895. 
  

   32 
  

  

  