Featured Is this amber?

I have a few amber pieces in my collection, and I recently purchased a black light. I had read that amber fluoresces under black light. So I grabbed my pieces that I thought were amber and headed to the closet with my light. Almost all of my honey amber necklaces turned this greenish color. However, my two pendants that I thought might be egg yolk amber did not have this color at all. I added my honey amber necklace in the photo for color comparison.
My question is are the yellow pendants real amber? The only markings are 925 on both.

 

They probably are, but may have been heat treated. That can change the result. They look like modern Polish pendants.

 

Thank you! I was wondering what the country of origin might be!

 

Those settigns are very typical.

 

Lovely egg yolk amber pendants, and I agree, very likely Polish.
Honey amber and egg yolk amber are different colours, so they fluoresce differently. Some don't fluoresce at all. Your pendants fluoresce like some egg yolk ambers, sometimes it is more whitish.

Nearly all amber is heat-treated, especially amber beads, but that doesn't influence the fluorescence.

 

The color of the string through the balls is intriguing to me.

 

Thanks! All the websites I googled showed honey amber. I couldn’t find anything about how egg yolk amber fluoresces. Y’all are fabulously knowledgeable on this forum.

 

How so? That necklace is a Soviet necklace. I base that on the fact that the earrings I purchased from the same sale had the hammer and sickle mark on them. They looked like the were a set to me.

 

Amen to that!

 

It makes it presence known, doesn't it.