Definition

A type of mineral that is a form of feldspar, often found in igneous rocks and characterized by its high calcium content.

Example

Anorthite is commonly found in the composition of some volcanic rocks.

Conversation

Have you ever heard of anorthite?

I think I read about it in a geology book once.

Yeah, it's a type of feldspar found in some igneous rocks.

Right! I remember it being quite rare and interesting.

Synonyms & Antonyms

Root Explanation

Anorthite is formed from the prefix "an-" (meaning not) and the root "orthos" (from Greek, meaning straight or correct) combined with the suffix "-ite" (used to denote minerals). The word refers to a mineral that is not straight or correct in its crystal structure, specifically a type of feldspar.

Memory Tip

Think of 'not' ('an-') and 'straight' ('orthos') to remember that anorthite is a mineral that does not have a straight or regular crystal structure.

Visually Confused Words