Editing Planescape (section)

=====The Quasielemental Planes=====
Just as it's possible to travel between the primary Elemental Planes, it's also possible to travel by mundane means to the Positive or Negative material planes (why you would WANT TO is a mystery).  At the intersection of the primary elemental planes and the Pos/Neg Material planes are the Quasielemental Planes
{| border=1 cellspacing=0 cellpadding=4
|-
| . || Air || Earth || Fire || Water
|-
| Positive || '''Lightning''' || '''Mineral''' || '''Radiance''' || '''Steam'''
|-
| Negative || '''Vacuum''' || '''Dust''' || '''Ash''' || '''Salt'''
|}

The quasi-elemental planes have little to no native flora nor fauna, and anyone claiming to be a lord would be a colonist from another plane.  It's possible that any native life that grows large or ambitious enough will gravitate towards the Pos/Neg Material planes, where they would disintegrate from getting too close.  Only the negative quasielemental planes have known princes, who are all evil.

As with the Paraelemental Planes, the Quasielemental Planes are made more distinctive by housing different terrain bands that signify proximity to one of the six other Inner Planes you can reach from that particular Quasielemental Plane. However, even if the Quasielemental Plane is linked directly to a Paraelemental Plane, the border region will be different depending on which side you're coming from. For example, the border region between Ice and Lightning on Ice's side is the Shimmering Drifts, a gentle snowstorm of hypnotically beautiful snowflakes and ice crystals that can suck the thoughts out of your head - but, coming at it from Lightning's Side, you run across the Glistening Crystal region, a realm of freezing-cold thunderstorms with luminescent icebergs floating within.