Clark, Carol <br/><br/>
Tropical gemstone / 
text by Carol Clark. 
 - Singapore :  Periplus Editions,  c1998. 
 - 64 p. : col. ill. 
 - (Periplus nature guides) .
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Precious stones--Tropics