Looking at Opals Under UV Light

In the video, we have a total of three opals. The yellow one comes from Montana and I am not sure what type of opal that is--it was sold to me as an opal for less than $1 and I think it was badly damaged. I decided to keep it. 



The second one glows vibrantly and its a Hyalite opal--one I intend to wrap and sell. I have some for sale already. The other opal is a black opal that I picked up at a gem show. It has red and green flashes and both it and the Hyalite have the matrix which is the rocky part. 

Here are some photos of the Hyalite. The first one has UV light applied. 



The photos were taken with my iPhone 7 and a macro lens attachment. The photo below is of the hyalite without the UV light applied.