(n.) An orthorhombic mineral of the pyroxene group, of a grayish or greenish black color, often with a peculiar bronzelike luster (schiller) on the cleavage surface.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). hypersthene. Retrieved September 22, 2026, from http://smartdefine.org/hypersthene/definitions/2018355 |
| Chicago | Webster's. 2011. "hypersthene" http://smartdefine.org/hypersthene/definitions/2018355 (accessed September 22, 2026). |
| Harvard | Webster's 2011, hypersthene, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/hypersthene/definitions/2018355>. |
| MLA | Webster's. "hypersthene" 27 May 2011. Web. 22 September 2026. <http://smartdefine.org/hypersthene/definitions/2018355> |