(i3<i REPORT OF NATIONAL MUSEUM, 1900. 



Ixho'lnjiilr. Vrn\ Mountainp, Siberia. Color, rod witli black inclusions. Ash tray. 

 Size, 14.5 by 8.2 cm. Oat. Nos. a-()50; 51135. 



Rhodunite. l^ral INIountains, Siberia. Color, i-eddish. Slab. Size, 11 by 7.7 cm. 

 Cat. Nos. l:>-850; 50396. 



Rock cr listed, see Quartz. 



Ruby, see Corundum. 



Rutile. Hiddenite, Alexander County, North Carolina. Color, dark red, nearly 

 opaque. Brilliant cut; circular girdles. Five gems. Average size, 5 by 3 mm.; 

 weight, 2.86 carats. Cat. Nos. a-601-605; 46821. (rift of J. D. Dana. 



Samarakite. Mitchell C^ounty, North Carolina. Color, Ijlack opaque. Brilliant cut; 

 circular girdle. Size, 12 by 6 mm.; weight, 6.39 carats. Cat. Nos. a-588; 83744. 

 The Lea Collection; gift of Dr. L. T. Chamberlain. 



Sapphire, see Corundum. 



Sardonyx, see Quartz. 



Scdinspar, see Gypsum. 



Serpentine. Newburyport, Massachusetts. Color, light and dark green. Necklace 

 of 51 beads. Average size, 12 mm. diameter. Cat. Nos. a-629; 50253. 



Serpeniiiie. Newburyport, Massachusetts. Color, dark and light green. Carved 

 ornament. Cat. Nos. b-923; 83341. The Lea Collection; gift of Dr. L. T. Cham- 

 berlain. 



Serpentine, var. l)owenite. Smithfield, Rhode Island. Color, light green. Orna- 

 mental piece. Cat. Nos. b-924; 46619. 



Serpentine. Cold Springs, New York. Color, light and dark green mottled. Cat. 

 Nos. b-925; 12370. Gift of E. Seymour. 



Serpentine. Montville, New Jersey. Color, green and white. Cat. Nos. l>-926; 

 - 47656. 



Serpentine. Near Montville, Morris County, New Jersey. Color, green. Diamond- 

 shaped slab. Size, 10.8 by 7.1 by 3.5 cm. Cat. Nos. b-927; 1884S. 



Serpentine. Montville, New Jersey. Color, greenish yellow. Two large pieces. Cat. 

 Nos. l>-928-929; 47656. 



Serpentine. Montville, New Jersey. Color, dark green. Cat. Nos. b-930; 47657. 



Serpentine. jNIarshall's quarry, Westchester, Pennsylvania. Color, light green with 

 chromite. Prism. Cat. Nos. l:>-931 ; 49852. The Lea Collection. 



Serpentine. Marshall's quarry, Westchester, Pennsylvania. Color, greenish black. 

 Rectangular block. Size, 57 by 43 by 12 mm. Cat. Nos. l)-932; 49852. The 

 Lea Collection. 



Serpentine. Glenn Mill, Delaware Comity, Pennsylvania. Color, light green. C'at. 

 Nos. b-933; 50920. 



Serpentine. Fritztown, Berks County, Pennsylvania. Color, yellowish green. Pol- 

 ished mass. Cat. Nos. b-934; 9775. Gift of H. W. HoUenbush. 



Serpentine. Harford County, Maryland. Color, green. Polished slal). Cat. Nos. 

 b-937; 50924. The Lea Collection. 



Serpentine. Harford County, Maryland. Color, dark green. Rectangular block. 

 Cat. Nos. b-938; 84239. 



Serpentine. San Francisco, California. ' Color, grayish olive green. Flower orna- 

 ment.' Cat. Nos. a-630; 46000. Gift of Dr. R. E. C. Stearns. 



Serpentine, (■ornwall, England. Color, dark red and green. Cat. Nos. b-939; 

 13075. 



Serpentine. Lizard Point, Cornwall, England. Color, dark green. Paper weight. 

 Cat. Nos. a-631; 84173. 



Serpentine. India. Color, deep green. Thin slab of williamsite. Cat. Nos. b-941; 

 46574. 



Serpentine. Cliina. Color, dark green. Lotus-leaf paper weight. Cat. Nos. b-942; 

 84240. 



