64 
Belgian marbles are represented by the well-known black 
marble of Dinard. 
Case 3 . — Marbles, Italy. 
Among these are some used by the ancient Romans. 
Case 4. — Marbles, Africa. 
Serpentines. 
Next to marble the green or red serpentines are perhaps the 
most generally used of ornamental stones. Especially noteworthy 
are the curiously mottled red and dark green serpentines from 
Lizard Point, Cornwall, and the dark colored variety from Saxony 
which is turned on a lathe to form various ornamental objects. 
Case 5. — Verde antique, ophite. 
The green serpentines as seen in this case are now commonly 
known as verde antique, although the name was formerly applied 
only to those of the shade of green possessed by the Greek speci- 
men E 504. 
The ophite from New York is a granular mixture of calcite 
and serpentine. 
Case 6 . — Travertine {onyx marble^ Mexican onyx). 
Stalagmite marble. 
The clear translucent specimens represent the travertine as 
originally deposited. 
The opaque red-brown effects are produced where the air has 
had long access to the material in the ground and has caused oxi- 
dation of the iron contained in the specimens. 
Case 7. — Marbles, United States. 
The two most important localities are represented here by the 
Vermont marbles, fine textured, ranging in color from pure white 
through gray to black and the coarsely crystalline brilliant mar- 
bles of Georgia running from white into the pinks. 
It must not be thought from the appearance of the case that 
colored marbles, such as appear in the collection from foreign 
localities, do not exist in the United States. Deposits have been 
reported but for various reasons remain unworked. 
Cases 8 and 9.— Marbles and gypsums. Great Britain and 
Japan. 
The best known of these is the encrinal marble of Devon, 
England. 
