Featured Natural (?) coral necklace. Anyone know coral types, etc.?

Curious if anyone can help me with this necklace. Fairly sure it is coral. I think probably (?) not dyed... are the imperfections a negative or a positive? Is there a special name for this type of coral? Also do you think the 2 beads are something else?

Basically anything you can tell me from the photos much appreciated. Thanks!

 

The 2 odd beads look like early artificial amber.

 

I'd be inclined to call it bamboo coral, although don't know that's a type of coral as much as a way of cutting it. All sorts of beads are coming up in a search, but this is what I think of:

https://www.dhgate.com/product/about-10x20mm-orange-color-sea-bamboo-coral/251677616.html

They do look natural in color. Imperfections are not acceptable in very high end coral jewellery, but I know I rather like them if the blemishes are not too deep & numerous. Largely a matter of taste & intended use.

 

Thank you, Bronwen

Curious if others have sold similar, etc. There is a lot of coral listed on Ebay so any keywords that come to mind to narrow a buyer's search would be much appreciated!

 

Undyed old salmon coral tube beads for me @Any Jewelry , ô Coral Queen
2 amber beads, I don't know if they are natural or man made

 

I love it, Lucille.

I agree, natural old coral, with possibly a few coral-looking strays.
The amber beads look (wo)man-made to me, though not of the plastic bucket variety.
Those tube beads were very popular in Tunisia, which doesn't mean this is necessarily Tunisian, but I would happily list it as Berber, North Africa.
Berbers have no problem with imperfections on coral, I don't either. Most of my ethnic coral jewellery has imperfections. To many cultures that is what coral looks like.

@Lucille.b , I've been looking for one of these for a Tunisian silver pendant. Will you let me know when you list it?

 

Thank you all for taking and look and your amazing expertise. Much appreciated.

Any Jewelry will let you know when I list. Should be in a day or two.