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isinglass

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isinglass

 

  3  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Isinglass  \I"sin*glass\,  n.  [Prob.  corrupted  fr  D.  huizenblas 
  (akin  to  G.  hausenblase),  lit.,  bladder  of  the  huso,  or  large 
  sturgeon;  huizen  sturgeon  +  blas  bladder.  Cf  {Bladder}, 
  {Blast}  a  gust  of  wind.] 
  1.  A  semitransparent,  whitish,  and  very  pure  from  of  gelatin, 
  chiefly  prepared  from  the  sounds  or  air  bladders  of 
  various  species  of  sturgeons  (as  the  {Acipenser  huso}) 
  found  in  the  of  Western  Russia.  It  used  for  making 
  jellies,  as  a  clarifier,  etc  Cheaper  forms  of  gelatin  are 
  not  unfrequently  so  called  Called  also  {fish  glue}. 
 
  2.  (Min.)  A  popular  name  for  mica,  especially  when  in  thin 
  sheets. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Mica  \Mi"ca\,  n.  [L.  mica  crumb,  grain,  particle;  cf  F.  mica.] 
  (Min.) 
  The  name  of  a  group  of  minerals  characterized  by  highly 
  perfect  cleavage,  so  that  they  readily  separate  into  very 
  thin  leaves,  more  or  less  elastic.  They  differ  widely  in 
  composition,  and  vary  in  color  from  pale  brown  or  yellow  to 
  green  or  black.  The  transparent  forms  are  used  in  lanterns, 
  the  doors  of  stoves,  etc.,  being  popularly  called 
  {isinglass}.  Formerly  called  also  {cat-silver},  and 
  {glimmer}. 
 
  Note:  The  important  species  of  the  mica  group  are: 
  {muscovite},  common  or  potash  mica,  pale  brown  or 
  green,  often  silvery,  including  {damourite}  (also 
  called  {hydromica});  {biotite},  iron-magnesia  mica, 
  dark  brown,  green,  or  black;  {lepidomelane},  iron, 
  mica,  black;  {phlogopite},  magnesia  mica,  colorless, 
  yellow,  brown;  {lepidolite},  lithia  mica,  rose-red, 
  lilac.  Mica  (usually  muscovite,  also  biotite)  is  an 
  essential  constituent  of  granite,  gneiss,  and  mica 
  slate;  {biotite}  is  common  in  many  eruptive  rocks; 
  {phlogopite}  in  crystalline  limestone  and  serpentine. 
 
  {Mica  diorite}  (Min.),  an  eruptive  rock  allied  to  diorite  but 
  containing  mica  (biotite)  instead  of  hornblende. 
 
  {Mica  powder},  a  kind  of  dynamite  containing  fine  scales  of 
  mica. 
 
  {Mica  schist},  {Mica  slate}  (Geol.),  a  schistose  rock, 
  consisting  of  mica  and  quartz  with  usually,  some 
  feldspar. 
 
  From  WordNet  r  1.6  [wn]: 
 
  isinglass 
  n  :  any  of  various  minerals  consisting  of  hydrous  silicates  of 
  aluminum  or  potassium  etc  that  crystallize  in  forms  that 
  allow  perfect  cleavage  into  very  thin  leaves;  used  as 
  dielectrics  because  of  their  resistance  to  electricity 
  [syn:  {mica}]




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