Definition

A type of rock that has large visible crystals, usually feldspar, set in a finer-grained background.

Example

The ancient Romans used porphyry for their sculptures and buildings due to its durability and beauty.

Conversation

Did you know that some rocks, like porphyry, have big crystals inside them?

Really? I had no idea rocks could be so interesting!

Yeah, porphyry is actually used in a lot of construction, too.

That's cool! I should pay more attention to the rocks around me.

Synonyms & Antonyms

Root Explanation

Porphyry comes from the Greek word "porphyra" (meaning purple), which refers to a type of purple dye made from a mollusk. The term was used to describe a purple stone that was highly valued in antiquity, often used in royal architecture and sculpture. Thus, porphyry refers to a purple-colored stone, symbolizing luxury and nobility.

Memory Tip

Imagine the color purple, which was historically associated with royalty and luxury, to remember that porphyry is a precious purple stone.

Visually Confused Words