﻿TSCHEFFKINITE. 
  

  

  Our 
  Mr. 
  English 
  has 
  just 
  returned 
  from 
  a 
  very 
  successful 
  trip 
  to 
  

   North 
  Carolina, 
  where 
  he 
  visited 
  a 
  number 
  of 
  important 
  localities 
  and 
  

   we 
  announce 
  the 
  results 
  as 
  follows 
  : 
  

  

  Tscheff 
  kinite, 
  the 
  excessively 
  rare 
  silico-titanite 
  of 
  the 
  cerium 
  

   earths, 
  etc., 
  in 
  fine 
  masses, 
  50c. 
  to 
  $5.00 
  ; 
  small 
  specimens, 
  

   10c. 
  to 
  35c. 
  

   Gem 
  Oligoclase, 
  transparent, 
  very 
  rare 
  and 
  interesting, 
  25c. 
  to 
  

   $2.00 
  ; 
  small 
  clear 
  pieces, 
  10c. 
  For 
  description 
  see 
  this 
  Jour- 
  

   nal, 
  September 
  and 
  November, 
  1888. 
  

   Beryl 
  Crystals, 
  terminated, 
  loose 
  and 
  in 
  the 
  matrix, 
  10c. 
  to 
  

  

  $1.00. 
  

   Gummite, 
  Uranotile, 
  and 
  Uraninite, 
  beautifully 
  combined 
  in 
  the 
  

  

  specimen, 
  50c. 
  to 
  $2.50. 
  

   Samarskite, 
  good 
  masses, 
  25c. 
  to 
  $1.00. 
  

  

  JAPAN. 
  

  

  We 
  have 
  just 
  received 
  a 
  lot 
  of 
  fine 
  Topaz 
  crystals 
  which 
  were 
  espe- 
  

   cially 
  selected 
  for 
  us 
  in 
  Japan, 
  from 
  a 
  great 
  quantity 
  of 
  crystals, 
  at 
  our 
  

   request, 
  by 
  a 
  prominent 
  American 
  mineralogist, 
  who 
  visited 
  that 
  

   country 
  this 
  summer. 
  The 
  largest 
  crystal 
  is 
  three 
  inches 
  long 
  and 
  two 
  

   and 
  half 
  inches 
  thick. 
  A 
  number 
  of 
  the 
  crystals 
  are 
  especially 
  inter- 
  

   esting 
  on 
  account 
  of 
  being 
  curiously 
  etched. 
  Large 
  crystals, 
  $5.00 
  to 
  

   $12.50 
  ; 
  small 
  ones, 
  averaging 
  ^/ 
  inches 
  in 
  length, 
  but 
  interesting 
  form, 
  

   50c, 
  75c, 
  and 
  $1.00. 
  

  

  RARE 
  SILVER 
  MINERALS. 
  

  

  We 
  can 
  supply 
  the 
  following 
  rare 
  Silver 
  Minerals 
  in 
  good 
  specimens 
  

   at 
  prices 
  quoted. 
  They 
  are 
  all 
  well 
  crystallized 
  except 
  Native 
  Silver, 
  

   Polytelite 
  and 
  Argyrodite. 
  

  

  Native 
  Silver, 
  Freiburg, 
  Saxony, 
  75c 
  to 
  $3.00. 
  

  

  Argentite, 
  Freiburg, 
  Saxony, 
  75c 
  to 
  $5.00. 
  

  

  Acanthite, 
  Freiburg, 
  Saxony, 
  §1.50 
  to 
  S3. 
  00. 
  

  

  Sylvanite, 
  Nagyag, 
  Hungary, 
  $2.50 
  to 
  S5.00. 
  

  

  Pyrargyrite, 
  Freiburg, 
  Saxony, 
  75c 
  to 
  2.50. 
  

  

  Proustite, 
  Freiburg, 
  Saxony, 
  75c 
  to 
  $3.00. 
  

  

  Polytelite, 
  Freiburg, 
  Saxony, 
  75c 
  and 
  $3.50. 
  

  

  Stephanite, 
  Freiburg, 
  Saxony, 
  75c 
  to 
  S3. 
  50. 
  

  

  Polybasite, 
  near 
  Lawson, 
  Colorado, 
  25c 
  to 
  $2.50. 
  

  

  Aguilarite, 
  Guanajuato, 
  Mexico, 
  $1.00 
  to 
  $10.00. 
  

  

  Argyrodite, 
  Freiburg, 
  Saxony, 
  $3.50 
  to 
  $5.00. 
  This 
  is 
  the 
  only 
  

   known 
  mineral 
  containing 
  Germanium. 
  

  

  "CATALOGUE 
  OF 
  MINERALS 
  AND 
  SYNONYMS," 
  

  

  by 
  Prof. 
  Thos. 
  Egleston, 
  handsomely 
  bound 
  in 
  cloth, 
  $2.50 
  ; 
  postage, 
  

  

  16c 
  extra. 
  

  

  "TABLES 
  FOR 
  THE 
  DETERMINATION 
  OF 
  MINERALS," 
  

   by 
  Prof. 
  Persifor 
  Frazer, 
  bound 
  in 
  cloth, 
  $2.00 
  ; 
  postage, 
  5c 
  extra. 
  

  

  "ELEMENTS 
  OF 
  CRYSTALLOGRAPHY," 
  

  

  by 
  Prof. 
  George 
  H. 
  Williams, 
  bound 
  in 
  cloth, 
  $1.25 
  ; 
  postage, 
  10c 
  

  

  extra. 
  

  

  GEO. 
  L. 
  ENGLISH 
  & 
  CO., 
  Mineralogists, 
  

  

  733 
  & 
  735 
  Broadway, 
  New 
  York. 
  

  

  