Is it possible for a Rocky Giant with rings around it?

[Silverbackman]

Most giant planets we know of are Gas Giants. Is it possible for a planet made of rocks to be the size of jupiter? In other words is it possible for a Rock Giant?

Also, is it also possible for a rocky planet to have rings around it like Saturn? Though we have found no rocky planet with rings around it, it is still very possible because those rings aren't linked to the gas of a Gas Giant, right?

 

[Phobos]

Also, is it also possible for a rocky planet to have rings around it like Saturn? Though we have found no rocky planet with rings around it, it is still very possible because those rings aren't linked to the gas of a Gas Giant, right?

Right. It's possible that the Earth had a ring system when the moon was first forming.

 

[Janus]

Most giant planets we know of are Gas Giants. Is it possible for a planet made of rocks to be the size of jupiter? In other words is it possible for a Rock Giant?

The problem is that such a planet will hold on to any gases escaping from its interior very well. As a result, it will most likely end up with a thick dense atmoshere. IOW, it will take on the appearance of a gas giant with a rocky core.

 

[Silverbackman]

The problem is that such a planet will hold on to any gases escaping from its interior very well. As a result, it will most likely end up with a thick dense atmoshere. IOW, it will take on the appearance of a gas giant with a rocky core.

Could Jupiter or any other gas giant have a rocky core?

Also, have we found other giant planets in other solar systems yet that appear to be giant but instead of it being a gas planet it actually appears as a rocky planet?

 

[Phobos]

Could Jupiter or any other gas giant have a rocky core?

I love this website! :)
http://www.seds.org/billa/tnp/

Jupiter probably has a core of rocky material amounting to something like 10 to 15 Earth-masses.
...
Saturn's interior is similar to Jupiter's consisting of a rocky core, a liquid metallic hydrogen layer and a molecular hydrogen layer. Traces of various ices are also present.
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Uranus is composed primarily of rock and various ices, with only about 15% hydrogen and a little helium (in contrast to Jupiter and Saturn which are mostly hydrogen). Uranus (and Neptune) are in many ways similar to the cores of Jupiter and Saturn minus the massive liquid metallic hydrogen envelope. It appears that Uranus does not have a rocky core like Jupiter and Saturn but rather that its material is more or less uniformly distributed.
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Neptune's composition is probably similar to Uranus': various "ices" and rock with about 15% hydrogen and a little helium. Like Uranus, but unlike Jupiter and Saturn, it may not have a distinct internal layering but rather to be more or less uniform in composition. But there is most likely a small core (about the mass of the Earth) of rocky material. Its atmosphere is mostly hydrogen and helium with a small amount of methane.

 

[Phobos]

Also, have we found other giant planets in other solar systems yet that appear to be giant but instead of it being a gas planet it actually appears as a rocky planet?

Possibly, but not for certain...
http://edition.cnn.com/2004/TECH/space/08/31/space.planet.cnn/index.html