ISRIC manages several micromorphological collections:
The ISRIC systematic collection – 3372 large thin sections from the profiles described in the ISRIC Soil Information System (ISIS, now WoSIS). This collection is part of the soil reference collection as the thin sections were sampled from the profile walls of reference collection sites.
The ISRIC collections also include other, orphaned, collections:
The Schmidt - Lorenz collection - Contains over 15000 small thin sections of soils, mainly from Europe, Africa and Australia
The Jongerius - STIBOKA collection - Over 6000 thin sections and blocks, mainly from Dutch and European soils and sediments. The collection has been established by the late Prof A. Jongerius, former Head of the Department of Micropedology and Mineralogy of the Dutch Soil Survey Institute (STIBOKA) in Wageningen and further expanded by micromorphologist Dr M Kooistra.
The unique micromorphological collections of soils from around the world may be viewed on demand.

