W. E. Ford — Interesting Beryl Crystals. 



219 



small truncations. Figure 6 is of a crystal in the Brush Col- 

 lection from the famous tourmaline locality of Haddam Keck 

 which corresponds to these other crystals in having the pyra- 

 mid of the second order unusually prominent, although on this 

 crystal the prism faces are large and well developed. This 

 crystal is transparent and has a very pale pink color. Several 

 other light-colored crystals from Haddam Keck showing a 

 development of faces similar to that of figure 6 are in the min- 

 eral collection of the American Museum of Natural History. 

 One very large one, donated to the Museum by Mr. Ernest 

 Schernikow, measures 18 inches in length by 1 foot in diame- 

 ter. It is doubly terminated, but so attached that only a por- 

 tion of its faces are developed. 



m 



m 



m 



Pink beryls were formerly found at Goshen, Massachusetts, 

 associated with tourmalines of light to dark green color, and 

 were given the name of goshenite by Shepard.* Specimens 

 of beryl from this locality in the Yale College Collection show 

 only the forms of the prism m and the base c. Transparent, 

 colorless and pink beryls are also found in the Island of Elba 

 associated with variously colored gem varieties of tourmaline. 

 A specimen of pink beryl in the Brash Collection from Elba 

 shows a short prismatic development terminated only by the 

 base. Yom Rathf describes the Elba beryls as being usually 

 transparent and frequently of a light pink color, and although 

 light green and blue crystals occur there as well, they are 



* A Treatise on Mineralogy, third edition, 1852, p 229. 

 fZ. d. d. Ges. xxii, 661. 



