We often use made from when we talk about how something is manufactured:
Plastic is made from oil.
The earliest canoes were made from tree trunks.
We use made of when we talk about the basic material or qualities of something. It has a meaning similar to ‘composed of’:
She wore a beautiful necklace made of silver.
What’s this table made of?
It’s oak, American white oak.
November 11, 2017
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