Pay in 4 interest-free payments of $6.00 Learn more
Ships within 48 hours · Estimated delivery Jul 27 - Aug 1
These are faceted Er:YAG (Yttrium Aluminum Garnet)
The numbering is not perfect--the center of the '4' on 14 ended up filled in
This is easily one of my favorite gems
These are faceted stones cut from labmade purple color change sapphire
https://www
Hologram Crystal (Iron-Doped Lithium Niobate) faceted Stones Marked Letter:Dark 7mm Round Cut avg. 1.7ct These are faceted Er:YAG (YttriumThese are faceted hologram crystals, aka iron doped lithium niobate. They are available in calibrated sizes and in fancy cuts. We have both light and dark toned stones depending on the dopant level. This is a really cool crystal in particular iron doped lithium niobate is grown for use in holographic storage. This is an emerging field (ok, it's been emerging since the 80s but still in progress) which allows data to be stored directly in a crystal