Hi Bass,
Two good sources of white apricots are The Arboreum Company and Bob Purvis Nursery.
Sometimes varities of something can be hard to find. One source of scions I use is
Bob Purvis
Purvis Nursery & Orchard
1568 Hill Road’
Homedale, ID 83628
Purvisrc@msn.com
It costs $3 for 6" and $5 for 12" sticks
He has about 5 attachments he can send out to you.
Could it have been the Moniqui white apricot? That one is white with a blush. Spanish origin. But it seems to be the most reliably productive white cot.
http://www.arboreumco.com/store/products/moniqui
Or perhaps Lasgherdi Mashad of Iran? Ghostly white. Rich and juicy.
http://www.arboreumco.com/store/products/lasgerdi-mashhad
There are many other white cots out there: Sparks Mammoth; Canadian White Blenheim; Shalah; Sugar Pearls; etc etc…
Forum founder @scottfsmith knows a lot about white cots. He is trying to grow many of them. Perhaps he’ll chime in.
OK by popular demand heres the stone fruits… these are my 2005-2015 or so annual logs combined together. They are generally in the order of ripening as that is the order I log things.
One thing I should mention is many of these are unusual types, I get excited about something different. I grew many flat peaches, honey peaches, red-fleshed peaches, white apricots, etc. Many of these unusual kinds I still like. Also many of these are heirlooms, they don’t produce as reliably as modern varieti…
It’s hard to know what you had, Bass, and whether it is a known variety or something unique.