This is something I have thought about for awhile and probably deserves its own thread. We have seen at least 3 examples of Black natured jutsu's in the form of Amaterasu , Black Panther & a Bijuu bomb.
First let us examine the 3 ways Chakra can be manipulated which we know of.
Shape manipulation - Allows one to take raw or elemental chakra and reshape it focusing it make better use of its power or expanding it to fit various purposes.
Examples: Chidori Spear & Rasengan
Nature Transformation - Taking raw chakra and transforming it into an elemental nature such Fire, Wind, Lightning, Earth or Water.
Examples: Great Fire Ball & Water Encampment Wall
Yin/Yang Alteration - This was first mentioned during Naruto's Rasenshuriken training and has been expanded on. It is the Positive and Negative aspect incorporating the manipulation of Mental & Physical aspects of Chakra.
Examples: Reverse Four Symbols Sealing Technique & Bijuu bomb
This brings us to the next part which is the Black Natured Jutsu explanation. Lets us examine the 3 examples of black jutsu.
Amaterasu - A fire based black natured jutsu which is said to represent the Material World and Light. Only Uchiha who are fire natured obtain this with the MS.
Black Panther - A lightning based jutsu used by Darui who learned Black lightning jutsu's from the 3rd Raikage himself.
Bijuu Bomb - The ultimate Bijuu weapon of choice created by using shape manipulation through chakra compression and then manipulating the Yin Yang ratio of the chakra by an aspect of 8:2 ( 8 - Positive Black (Yin) / 2- Negative White (Yang) )
- So using what we know we can deduce that Black natured elemental chakra incorporates Yin/Yang manipulation to disrupt the balance thus increasing its destructive power similar to a Bijuu bomb.
The Uchiha possess powerful Mental energies which is why their dojutsu is Genjutsu based. Mental energy is represented by Yin or Positive Black chakra. Hence you can see the direct link to Amaterasu.
So with that in mind one can assume their may be other black elemental jutsu's like Black Water, Wind or Earth however being able to pull it off would require one to obviously have that nature and a great deal of skill in Yin/Yang manipulation.
Someone with fire nature with enough skill could possible be able to use an Amaterasu based jutsu with the only difference being it would require hand seals and skill in altering Yin/Yang ratio.
The reason why we dont see more people use it is probably goes to show the level in difficulty it takes to use Nature manipulation + Yin/yang alteration. Look how hard it was for Naruto to master the Rasenshuriken which only uses Nature transformation + Shape manipulation
Clearly Darui of the Cloud has great skill being able to use Shape manipulation + Nature transformation+ Yin/Yang alteration all at once with his Black Panther Lightning.
Feel free to discuss...