Historical Examples. 1  The principal use of pyrite is in the manufacture of sulphuric acid. 2  Wherever flint and pyrite are to be had these are used for striking fire. 3  He, however, puts it on one side as merely a synonym for pyrite, nor can it be satisfactorily defined in much better terms.
Usually somewhere between 5 and 6 months would be the time when a male cat begins to reach sexual maturity and starts to spray. Although not all cats will do this, it is highly likely in unneutered males, especially if there are other cats in the house. That is why it is recommended to get them neutered before 6 months of age. Once a male cat begins to spray, neutering will help but it may continue to some extent if it has become a habit.
A female cat, just like a male cat, can and will spray when on heat, or feel their territory is being threatened. They spray very strong-smelling urine to communicate with oth â¦ er cats in the area.3 people found this useful.emale cats can mature as early as four months. Some female cats  will spray when they are sexually mature that is usually between  four and six months. Spraying of females â¦ is often when she is in  heat. 2 people found this useful.