iouxwELL.]  VANADIUM    AND    URANIUM    IN    UTAH.  209 
?ive  carnotite,  cementing  quartz  grains  in  a  certain  cross-bedded 
sandstone,  or  as  a  faint  stain  upon  petrified  wood.  In  the  southern 
▼roup  massive  carnotite  occurs  in  an  18-inch  bed  of  conglomerate, 
iither  as  cement  or  merely  coating  pebbles  of  chert,  jasper,  quartz, 
iiid  possibly  petrified  wood,  or  within  gray  clay  nodules.  None 
,vas  seen  in  the  overlying  cross-bedded  sandstones,  though  a  little 
ippeared  in  the  underlying  white  sandstone.  At  the  third  locality 
he  pay  is  found  in  a  bed  of  gray,  blackened,  slightly  carbonaceous 
sandstone,  in  two  layers,  either  upon  or  immediately  adjacent  to 
)lant  remains.  It  forms  a  thin,  glistening  coating  upon  fossil  bark, 
vood,  and  cellular  tissue,  and  in  some  instances  has  entirely  replaced 
•ell  walls.  A  query  as  to  the  derivation  of  the  carnotite  from  the 
>rganic  remains  is  naturally  suggested,  but  it  seems  more  probable 
hat  they  acted  only  as  a  chemical  precipitant,  by  reason  of  their 
sarbonaceous  content.  No  fissures  were  observed  during  the  hasty 
sxamination,  but  deliberate  search  would  probably  have  revealed 
sufficient  partings  along  which  solutions  rich  in  uranium  might  have 
issed  until  they  met  the  carbonaceous  precipitant. 
History  and  development. — All  deposits  in  this  locality  are  era- 
iraced  in  a  single  property  comprising  eight  claims,  which  extend 
long  the  strike  of  the  country  rock  in  a  north-south  direction  for  a 
istance  of  about  2  miles.  The  deposits  are  stated  to  have  been  dis- 
overed  by  sheep  herders  and  to  have  been  subsequently  prospected 
nd  claimed  by  Judge  J.  W.  Warf,  of  Price.  They  are  now  owned 
y  parties  residing  in  Green  River.  The  croppings  have  been  pretty 
loroughly  worked,  and  a  shipment  of  80,000  pounds  was  sent  to 
J-ermany.     The  workings  are  all  surface  prospects  and  test  cuts,  of 
hich  the  most  extensive  are  an  open  cut  7  to  IS  feet  wide  by  40  feet 
mg  and  5  feet  deep,  on  the  carnotite-bearing  conglomerate,  and  a 
-ench  about  5  feet  wide  and  100  feet  long,  2  to  3  feet  deep,  to  open  a 
ed  of  plant  remains,  stained  with  the  yellow  mineral  regarded  as 
irnotite.  The  lean  character  of  the  remainder  of  the  ore.  added  to 
le  report  that  no  response  has  been  received   from  the  shipments, 
ads  to  the  conclusion  that  the  ore  is  of  too  low  grade  to  pay,  under 
le  most  favorable  conditions,  and  doubly  so  under  the  high  expense 
f  working  and  shipping  under  existing  conditions. 
SAN   RAFAEL  DEPOSITS  (SOUTHEAST   SIDE). 
Southeast  of  the  San  Rafael  Swell,  in  Wildhorse  Canyon,  and  8  to 
3  miles  north  of  Hanksville,  Wayne  County,  considerable  deposits 
f  a  black,  vanadiferous  sandstone  and  some  carnotite  in  float  are 
sported  to  occur.  The  material  is  a  dense,  black,  carbonaceous  sand- 
one,  which  contains  combustible  matter  and  after  burning  yields  a 
jsidue  that  includes  some  vanadium  (Hillebrand).  Small  blotches 
Bull.  260—05  m 14 
