My father was a Graduate Gemologist, jewelry designer/maker, photographer, woodworker -- an all-around creative man. For years, he and my mother had a nice jewelry store and gallery in the fashionable 5th Avenue Shops in Old Town Scottsdale. He passed away and I've been selling many of his items for my mother.
Here's a large batch of nice crystal and other mineral specimens. I'm not a gemologist and am unsure of what most of these are. I suspect some or all of these may be phosphorescent because my dad had a room in his 5th Avenue gallery that displayed rocks that were phosphorescent -- you walked into the small room and the normal lights went off and the blacklights went on, and an audio presentation played while people enjoyed the vivid colors of the rocks. I wish I had a blacklight to check these!
Regarding their sizes, the largest specimen in the top left of the photo measures 9" x 5", which should give you a good visual clue as to the sizes of the others.
You can have them for $25. Selling as a lot only.
You're welcome to come over any day of the week during the afternoon hours of 12:00 - 6:00. My wife and I work from home but one of us will be able to get away from our computers to take an afternoon work break and show these to you.