000 01174nam a2200253Ia 4500
001 107616
003 0000000000
005 20211104003747.0
008 970102s2006 nyua b 001 0 eng
020 _a9781402740169
035 _a(AEA)71FD7971E438471587D8ECB6160712A1
035 _a4014348
040 _cDLC
050 _aQE 392
100 _aSchumann, Walter.
_999507
245 0 _aGemstones of the world /
_cWalter Schumann.
260 _aNew York :
_bSterling Pub.,
_c2006
300 _a311 p. :
_bill.
_c20 cm.
520 _aand way they are formed ,structured,and mined.Contains charts,diagrams.Includes optical features of the gemslight and color,luminescence,retraction,and inclusionsand about densities and the chemical elements of each stone,with details on different cuts,polishing,synthetic and imitation gems,hardness,cleavage, classification,trade names,rarity,and the text.Includes photographs of gemstones with data .
520 _aCovers information on gemstones identifying their geographic locations
520 _ascientific,physical,and color properties
942 _cREF
999 _c68677
_d68677