TY  - BOOK
AU  - Sheridan,Douglas M.
AU  - Taylor,Richard B.
AU  - Marsh,Sherman P.
TI  - Rutile and topaz in Precambrian gneiss,: Jefferson and Clear Creek Counties, Colorado,
T2  - Geological Survey circular 567
AV  - QE75 .C5 no. 567
U1  - 549.5/24 
PY  - 1968///
CY  - Washington
KW  - Rutile
KW  - Colorado
KW  - Jefferson County
KW  - Clear Creek County
KW  - Topaz
KW  - Gneiss
KW  - Geology, Stratigraphic
KW  - Precambrian
ER  -