(n.) A sulphide of arsenic and silver of a beautiful cochineal-red color, occurring in rhombohedral crystals, and also massive; ruby silver.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). proustite. Retrieved September 21, 2026, from http://smartdefine.org/proustite/definitions/2050311 |
| Chicago | Webster's. 2011. "proustite" http://smartdefine.org/proustite/definitions/2050311 (accessed September 21, 2026). |
| Harvard | Webster's 2011, proustite, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/proustite/definitions/2050311>. |
| MLA | Webster's. "proustite" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/proustite/definitions/2050311> |