Aragon spar

noun

Ar·​a·​gon spar

variants or less commonly Aragon Spar

ˈarəˌgän-,

-gən-

: aragonite

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now