Identifying Beryl: Refractive Index, Specific Gravity & Dichroism

Question
What tests can you preform to find out if a specific rock is beryl?

Answer
Hi Ryan,

The two basic tests ar the refractive index and the specific gravity that pretty much will identify beryl. The refractive index is approximately 1.56 - 1.59 with a specific gravity of 2.76. There are many more tests that can be done but these two will tell the tale. And since beryl is a double refractive crystal a dichroscope will work to tell if the stone is DR. You must know how to use these instruments for them to be effective.

Peter