perimorph

[per-uh-mawrf] /ˈpɛr əˌmɔrf/
noun
1.
a crystal of one mineral enclosing that of another mineral.
Compare endomorph (def 1).
Origin
1880-85; peri- + -morph
Related forms
perimorphic, perimorphous, adjective
perimorphism, noun
British Dictionary definitions for perimorph

perimorph

/ˈpɛrɪˌmɔːf/
noun
1.
a mineral that encloses another mineral of a different type
Derived Forms
perimorphic, perimorphous, adjective
perimorphism, noun