intergrowth

The growing of one thing with or into another.

The growing together of crystals from two or more minerals.

Specifically In crystallography, intercrystallization; the intimate union of two mineral species, often in parallel position, produced by simultaneous crystallization; also, one of the subindividuals involved in a composite growth of this character.

A growing together; a growth between.

A growing together and through each other of two crystals