Novice emerald question

[pregcurious]

The "only" stone I have left to buy is a emerald (but everyone knows I will buy more than that though ). I know very little about them. What are the vertical lines I see in this picture?

 

[treasurehunter]

feathers

 

[dk168]

I like the colour, thanks for sharing!

DK

 

[chrono]

Most likely to be feathers (fracture inclusions).

 

[partgypsy]

Emeralds can have a variety of inclusions, including growth tubes.

http://gemologyonline.com/emerald_inclusions.html

It may also be color zoning, which can be entirely natural...
Even if entirely natural, you make want to ask yourself if you want a stone that is so obviously zoned.

Do you know anything about treatments of stone, if any?

 

[pregcurious]

Thanks, everyone.

It's treated with cedar oil.

Okay, I'll pass on this one. It was the right size and price. Darn. The search continues. Emeralds are confusing to me.