General guide to the exhibition halls of the American Museum of Natural History . of cavities, stones of this kind reflect thelight from the interior as a six-rayed starand consequently they are termed starrubies and star sapphires. This gem,weighing 100 carats, was discovered inone of the ruby mines of Burma and waspresented to the Museum by Mrs. GeorgeBowen de Long, in whose honor it isnamed. It is unique among star rubiesand the largest of such rubies only re-moiely approach it in quality. Geology and Minerals of New YorkState. Two cases illustrating these fea-tures are exhibited on the fir
General guide to the exhibition halls of the American Museum of Natural History . of cavities, stones of this kind reflect thelight from the interior as a six-rayed starand consequently they are termed starrubies and star sapphires. This gem,weighing 100 carats, was discovered inone of the ruby mines of Burma and waspresented to the Museum by Mrs. GeorgeBowen de Long, in whose honor it isnamed. It is unique among star rubiesand the largest of such rubies only re-moiely approach it in quality. Geology and Minerals of New YorkState. Two cases illustrating these fea-tures are exhibited on the first floor ofthe Roosevelt Memorial (Index Plan, (i. Floor I, Hall 12). One case shows theprincipal minerals characteristic of theState and the localities where they maybe found. The other demonstrates theextent of the sedimentary, igneous, andmetamorphic areas within the borders ofthe State. [3. TWO FINE SPECIMENSOF NATROLITE FROMTHE MUSEUMS COL-LECTION OF specimen of natrolite,to the left, tame from Lip-pa, Bohemia. The slenderorthorhomhic crystal - likeprisms, nearly square incross section, form a radiat-ing group somewhat resem-bling clusters of organ pipes (Right) NATROLITEFROM WEST PATERSON,NEW JERSEY. Besides thetetragonal crystals, finerhair-like crystals in theform of long slender silkvneedles radiate from a cen-tral nucleus suggesting afluffy seed hall of the dan-delion
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Keywords: ., bookcentury1900, bookdecade191, booksubjectnaturalhistorymuseums
