42 BULLETIN 118, UNITED STATES NATIONAL MUSEUM. 



CORUNDUM, variety ORIENTAL TOPAZ. 



AUSTRALIA. 



Queensland. 



Brilliant, circular girdle; pale yellow; 2.44 carats; 8 by 4.5 mm. Isaac 

 Lea collection No. 1824 



CEYLON. 



Step-brilliant, rectangular girdle; pale yellow; 7.6 carats; 12 by 10 by 7 



mm. Isaac Lea collection No. 2 



Step-brilliant, elliptical girdle; pale orange-yellow; 3.307 carats; 9.5 by 7.5 



by 5 mm. Isaac Lea collection No. 18 



Step-brilliant, rectangular girdle; pale yellow; 3.277 carats; 10 by 7 by 6 



mm. Isaac Lea collection No. 33 



Step-brilliant, elliptical girdle; pale yellow; 3.052 carats; 10 by 7 by 5 mm. 



Isaac Lea collection No. 31 



Step-brilliant, elliptical girdle; pale yellow; 2.369 carats; 9 by 7.5 by 4.5 



mm. Isaac Lea collection No. 35 



Step-brilliant, elliptical girdle; pale green-yellow; 2.336 carats; 9 by 8 by 



5 mm. Isaac Lea collection No. 29 



Step-brilliant, irregular girdle; very pale yellow; 1.982 carats; 7.5 by 7 by 



4.5 mm. Isaac Lea collection No. 43 



Step-brilliant, elliptical girdle; very pale yellow; 1.923 carats; 8 by 7 by 



5 mm. Isaac Lea collection No. 38 



Step-brilliant, elliptical girdle; very pale yellow; 1.738 carats; 8 by 6 by 4 



mm. Isaac Lea collection No. 46 



Step-brilliant, elliptical girdle; deep yellow; 1.518 carats; 8 by 4 by 6 mm. 



Isaac Lea collection No. 42 



Step-brilliant, elliptical girdle; pale yellow; 1.46 carats; 7 by 5.5 by 4.5 



mm. Isaac Lea collection No. 39 



Step-brilliant, elliptical girdle; very pale yellow; 1.37 carats; 7 by 6 by 4 



mm. Isaac Lea collection No. 50 



Step-brilliant, oval girdle; very pale yellow; 1.277 carats; 7.5 by 5 by 4 



mm. Isaac Lea collection No. 48 



Step-brilliant, elliptical girdle; very deep yellow; 1.27 carats; 7 by 6 by 4 



mm. Isaac Lea collection No. 54 



Step-brilliant, elliptical girdle; very pale yellow; 1.18 carats; 6 by 5 by 5 



mm. Isaac Lea collection No. 76 



Step-brilliant, elliptical girdle; very pale yellow; 1.105 carats; 6.5 by 5 by 



4.5 mm. Isaac Lea collection No. 59 



Step-brilliant, elliptical girdle; pale yellow; 0.946 carat; 6 by 5 by 3 mm. 



Isaac Lea collection No. 67 



Step-brilliant, elliptical girdle; very pale yellow; 0.917 carat; 6 by 5 by 4 



mm. Isaac Lea collection No. 62 



Brilliant, square girdle; green-yellow; 0.889 carat; 6 by 4 mm. Gift of 



Clarence S. Bement No. 134 



Step-brilliant, elliptical girdle; pale yellow; 0.776 carat; 6 by 5 by 3 mm. 



Isaac Lea collection No. 89 



Step-brilliant, square girdle; pale yellow; 0.747 carat; 5.5 by 3.25 mm. 



Isaac Lea collection No. 36 



Step-brilliant, elliptical girdle; pale yellow; 0.742 carat; 6 by 5 by 3 mm. 



Isaac Lea collection No. 98 



Step-brilliant, rectangular girdle; very pale yellow; 0.659 carat; 5.5 by 4.5 



by 3.5 mm. Isaac Lea collection No. 96 



