Word: gilbertite
Part of speech: Noun
Syllables: gil
ber
tite
Definition: A particular kind of muscovite; a colorless or pale brown mica with potassium
Morphemes:
Affix: Gilbert
Language: en
PoS: Proper noun
Meaning: Proper noun~ A  surname​.
Affix: -ite
Language: en
PoS: Suffix
Meaning: Used to form nouns denoting rocks or minerals.