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Est. 1974

International School
of Crystallography

Director: Giovanna Scapin, PhD
Director Emeritus: Sir Tom Blundell, FRS FMedSci

Erice, Sicily — Ettore Majorana Foundation and Centre for Scientific Culture

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Supported by LODOS APS ETS

50+
Years of excellence
60+
Courses held
4 000+
Alumni worldwide
60+
Countries represented
About the School

Where science
meets tradition

Founded in 1974 by Lodovico Riva di Sanseverino and Peter F. Lindley, the International School of Crystallography is one of the world’s most prestigious gatherings for structural scientists.

Held under the auspices of the Italian Crystallographic Association (AIC) and hosted by the Ettore Majorana Foundation in Erice, Sicily, each course brings together world-leading experts and emerging researchers from across the globe. The school covers cutting-edge methods and applications in crystallography — from small molecules to macromolecules, from synchrotron techniques to computational structure determination.

With over four thousand alumni in sixty countries, the ISC has shaped generations of crystallographers and structural scientists, fostering a global community united by the science of crystals.

The School has been led by three scientific directors since its foundation: Dorothy Hodgkin (1974–1978), Sir Tom Blundell (1978–2023), and Giovanna Scapin (2024–present).

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ISC participants group photo
LODOS APS ETS Behind the School

Organized by LODOS APS ETS

LODOS APS ETS — Associazione di Promozione Sociale, Ente del Terzo Settore — is the non-profit association that provides the legal and administrative backbone of the International School of Crystallography. It ensures continuity and governance across editions, handling registrations, funding and finances, while the School's Executive Secretary and Treasurer serve as its officers, working alongside the Ettore Majorana Foundation to support students, faculty and the wider crystallographic community.

The Location

Erice, Sicily

Perched at 750 m on Monte San Giuliano, Erice provides one of the most extraordinary scientific settings in the world.

The Town

A medieval hilltop village with panoramic views over the Sicilian coast and, on clear days, as far as the coast of Tunisia. Its cobblestone alleys and Norman towers create an atmosphere unlike any other conference city.

The Centre

The Ettore Majorana Foundation and Centre for Scientific Culture hosts hundreds of international schools each year. Full board accommodation and lecture facilities are housed within beautifully restored medieval buildings.

The Format

Each course runs for 8–10 days of intensive lectures, tutorials, and practicals. The residential setting fosters a uniquely close-knit interaction between students and world-leading faculty, day and night.

Getting There

Reachable via Palermo or Trapani airports. On arrival and departure days, transportation to/from both airports is arranged by the School free of charge.

Monte San Giuliano
San Rocco, Erice
Temple of Venus
Planning Your Stay

Practical Information

Everything you need to know about fees, funding and travel documents before you apply.

Cost & Payment

The total fee is 1500 Euro, covering full board, transportation to/from the airport, excursions and social events. Accompanying persons are charged 150 Euro per day.

Grants

Registration-fee grants for applicants under 35 may be available from the organizers, and several external organizations offer travel grants to eligible participants.

Visa

Depending on their country of origin, participants may need a visa to enter Italy. Applicants should enquire with local Italian authorities as early as possible.

2027 Edition

The Next Course

63rd Course

Mechanochemistry and Mechanical Properties of Crystals

 Erice, Sicily — 28 May – 5 June 2027

Mechanochemistry—recognized by IUPAC as a top-ten world-changing technology—now enables the synthesis of cocrystals, organic/organometallic compounds, MOFs, and inorganic solids through mechanical forces like ball milling. Yet how these forces relate to established structure–property behaviours (e.g., piezoelectricity, ferroelectricity) remains poorly understood at the molecular level. X-ray crystallography and diffraction, often paired with spectroscopy and modelling, are key tools for probing these transformations. This course covers their application—from real-time synchrotron monitoring to high-pressure, phonon, and flexible-crystal studies—to train future solid-state chemists in synthesis, dynamics, and crystal engineering.

Since 1974

Past Courses

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Future Courses

2028 — 64th Course Diffuse Scattering
2029 — 65th Course Drug Design
2030 — 66th Course Magnetic Crystallography
2031 — 67th Course Powder Diffraction