omphacite
- noun
- /ˈɑmfəˌsaɪt/
- Specialized
- Geologists often study omphacite to understand the conditions under which eclogite forms.
Examples
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In the rock formation, omphacite is one of the key minerals present alongside garnet and quartz.
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The key minerals for jade from the primary Motagua Valley source are jadeite, omphacite, albite, white mica (two varieties), and titanite.
Academic text (1992) -
The green color of omphacite gives it a unique appearance compared to other minerals in metamorphic rocks.
Surface Forms
Morphology
omphacite = omphac (opaque) = omphac + ite
The root combining form 'omphac' is obscure to average learners and the mineral suffix '-ite' is specialized, so the components do not yield a clear everyday meaning.
Etymology
Omphacite comes from the Greek word omphax, meaning 'unripe grape', because the mineral often has a green, grape-like colour, and the ending -ite simply marks it as a mineral. So, omphacite is a green mineral and the 'unripe grape' image helps you remember its colour.