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Have questions about your online account, paying dues, making a donation or just need to get in touch with us?  Please let us know how we can assist you.  


General Inquiries: 


American Crystallographic Association

P.O. Box 96 Ellicott Station

Buffalo, NY 14205-0096


Phone: (716) 898-8690

Fax: (716) 898-8695


Please fill out the form below to contact us by email.  We will respond to your request as soon as possible.


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For specific questions regarding the annual meeting, exhibits, newsletter advertisements, or abstracts, contact:


Marcia Colquhoun

Phone: (716) 898-8692

Fax: (716) 898-8695


For specific questions regarding membership, online accounts, meeting registration, donations, or publications, contact:


[email protected]

Phone: (716) 898-8693

Fax: (716) 898-8695

ACA currently has about 1,300 members from countries spanning the globe.  Scientists in every stage of their careers benefit from this diverse scientific community.  Members are free to join one or several of ACA's 12 Scientific Interest Groups (SIGs).  Each SIG provides focus on a specialty area and have a direct impact upon the program at the annual meetings.  They offer members opportunities for networking within their field while expanding their skills and expertise outside their field.  There are no additional fees to join a SIG.  SIGs include: Biological Macromolecules, Fiber Diffraction, General Interest, Materials Science, Neutron Scattering, Powder Diffraction, Service Crystallography, Small Angle Scattering, Small Molecules, Synchrotron Radiation and Young Scientists.



Corporate Member Ad


    2016 Meeting

  July 22-26

 Denver, Colorado