Definition

A type of coarse-grained igneous rock that is similar to granite but contains more alkali feldspar and less quartz.

Example

The geologist studied the sienite to understand its formation process.

Conversation

Have you ever heard of sienite?

I think so, isn't it a type of rock?

Yeah, it's related to syenite, but I find sienite more interesting.

That makes sense! Geology can be pretty fascinating.

Synonyms & Antonyms

Root Explanation

Sienite originates from the Latin word 'siena', which refers to a reddish-brown color, derived from the city of Siena in Italy known for its distinctive clay. The suffix '-ite' is used in geology to denote a type of rock or mineral. Therefore, sienite refers to a type of rock associated with the reddish-brown color characteristic of the region.

Memory Tip

Think of the reddish-brown color associated with the city of Siena, which helps you remember that sienite is a type of rock with that distinctive hue.

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