What are these VINTAGE TRICOLORED CRYSTAL BEADS really called? Help!

[delanagle]

What are these VINTAGE TRICOLORED CRYSTAL BEADS really called?
From my moms collection, they are perfect and very vintage. Are they glass? I think they are crystal- wow if they could be Swarovski! I want to sell these but have no idea how to list them correctly or what the ballpark value might be.
Are they Cones? Drops? I don't even know what the shapes are called!7 vintage multicolor crystals 4.jpg

Any comment or answer would be really appreciated! Thanks!

[barbaraljones@hotmail.com]

Hi..
Providing they are real (not man-made), they are called "iris quartz" or sometimes "rainbow quartz". Often you'll see them listed as iris glass, if they were re-created (occurred in Bohemia in the late 19th century)..

[delanagle]

Thank you! I can't imagine these colors happening naturally- I'd have to guess they are 'man made'. Thanks for the info!