Leiteite, a zinc arsenate, colored umber-red by inclusions of Ludlockite, a lead arsenate.
From the en.wikipedia.org
If my factory produced lead-arsenate, I would be required at my own cost, to clean up every atom of this deadly material.
From the newscientist.com
Yet if I ran a factory belching out, say, lead arsenate, I would be required to clean up every atom of this harmful material.
From the newscientist.com
The geographical differences may be linked to the historical use of lead arsenate as a pesticide in certain areas, according to Consumer Reports senior scientist Michael Hansen.
From the stltoday.com
Tawfik thinks that the angle is likely to lead to repulsion between the molecule and other atoms in the cavity, preventing the PBP from passing arsenate into the cell's interior.