I think these are turquoise magnesite ( but in all honesty they could be stabilized turquoise ). They are very natural and very rugged - they have lots of little bumps and nubbies and lots of matrix . They are bright turquoise blue and are drilled lengthwise through the bead . I only measured one of the medium sized ones and it is 20mm x 13mm and is 8mm thick ( think that gives you an idea of size ). The strand is 16 inches long .
The beads in the photo are the ones you will receive .
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