Sinkankas Symposium Publications (2014-2022)

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2022 – Eighteenth Annual Sinkankas Symposium

Alexandrite and Other Color-Change Gemstones 

Copyright permissions apply, no reproduction or cross-posting online, in whole or in part, is permitted,
except by explicit written permission of the authors/contributors.
Alexandrite and Other Color-Change Gemstones: Click Here to Download
Agate and Chalcedony:  Click Here to Download


Existing orders will begin shipping on July 12th, 2022.

(The deadline for pre-orders was June 13, 2022 by 5PM PDT)
DPI Direct is the original manufacturer and authorized distributor of 
Sinkankas Symposium publications, 2014-2022

A note for our Eurozone customers: Extra administrative fees may be applied to books (yes, books!) shipped to Eurozone destinations. You may incur higher duties and administrative fees, depending upon your postal address within the EU, so please be prepared to pay these costs.

Questions? Contact us at SinkankasSupport@dpidirect.com