130 BULLETIN 118, UNITED STATES NATIONAL MUSEUM. 



Polished slab; gray; 17 by 17 cm. Chalcedony Park, Arizona No. 1688 



Mosaic slab; 25 by 25 cm. Chalcedony Park, Arizona No. 1683 



Rectangular paper weight; brown; 6 by 5 by 2.5 cm. Humboldt County, 



Nevada No. 1684 



Paper weight; yellow and red-brown, and gray; 10.2 by 7 by 2 cm No. 1685 



Cube; gray and white streakea; 5 cm No. 1686 



Carved dog's head ; pink and yellow. Chalcedony Park, Arizona. Gift cf 



Maj. J. W. Powell No. 1687 



COAL. 



Rectangular slab carved with a bunch of flowers; 15 by 10.5 cm No. 1735 



CROCIDOLITE. 



LIST OF SPECIMENS. 



Paper weight; aark blue-black; 11 by 8 cm. Griqualand, South Africa No. 1744 



Dish; brown in white quartz; 13 by 9 cm. Griqualand, South Africa No. 1745 



Half sphere; brown; 5.5 cm. diameter; Griqualand, South Africa. Isaac 



Lea collection , No. 1746 



Sphere; brown; 3.8 cm. diameter. Griqualand, South Africa No. 1747 



FLUORITE. 



LIST OF SPECIMENS. 



Cup on black marble base; dark purple; 10 cm. diameter. England No. 1754 



Two ash trays; mottled; 8.7 and 8.5 cm. England No. 1755 



GRAPHIC GRANITE-PEGMATITE. 



This is a variety of pegmatite in which the quartz and feldspars 

 have crystallized in long, parallel prisms which on cutting at right 

 angles to the axis of elongation give rise to peculiar figures suggestive 

 of letters of the Phoenician alphabet, hence the name Graphic. The 

 light color and slight contrast of the two principal minerals render 

 the material of little interest from a gem standpoint, but of con- 

 siderable interest when cut into ornaments. 



LIST OF SPECIMENS. 



Ash tray; light brown; 14 by 8.2 cm. Siberia No. 1727 



Sphere; gray and white; 7 cm. Auburn, Maine No. 1769 



GYPSUM, variety SATINSPAR. 



LIST OF SPECIMENS. 



Goose egg; white; 9.5 cm. long. Bridgeford, England No. 1669 



Sphere; white; 6.5 cm. diameter No. 1722 



JADE. 



LIST OF SPECIMENS. 



Paper weight in form of a lotus leaf; dark green; 15 by 6 cm. China No. 1701 



Carving in the form of a vase; gray-green; 14 cm. long. China No. 1702 



Inkstand on a base of teak ; light green. China No. 1705 



Vase on a base of teak; gray -green; 11.5 cm. high. China No. 1704 



Small bird mounted on gold stand ; light green. China No. 1703 



