In one method, the alkaloid N-benzylcinchonidinium chloride form a crystalline inclusion compound.

These highly organized crystalline inclusion complexes have potential uses in catalysis and molecular separation devices.

The most common inclusion is unconverted graphite, followed by crystalline inclusions of orange garnet, pyroxene, and olivine.

They are composed of fused lysosomes/primary neutrophilic granules and contain peroxidase, lysosomal enzymes, and large crystalline inclusions.

Crystals: Crystalline inclusions have long been recognized as normal constituents of certain cell types such as sertolli cells and leydig cells of the human testis , and occasionally in macrophages.