Dude
A gold geodude is just a shiny geodude you must keep finding geodude in granite cave until its shiny.
Geodude evolves at lv. 25.
Geodude evolves beginning at level 25.
YOU can use a TM teach geodude rocksmash
Dude
What you have encountered is a shiny Geodude, which, as you described, is gold and a normal Geodude is a light gray color. Think of shiny Geodude as a gold nugget and a normal Geodude has a regular rock.
Geodude will evolve into Graveler.
No, Geodude is not a real creature. Geodude is a fictional character only in the Pokemon franchise.
A gold geodude is just a shiny geodude you must keep finding geodude in granite cave until its shiny.
geodude evolves at lvl 25.
A female Geodude can be found randomly in the wild. A Geodude has a 50% chance of being female.
There are three Pokemon in the Geodude evolutionary line - Geodude, Graveler, and Golem. Geodude evolves to Graveler at level 25, and Graveler evolves to Goiem by being traded.
If you like 'Nan' as a nickname, then yes, it is a good nickname.
Geodude evolves into Graveler, starting at level 25.
geodude learns rockthrow at lv. 11
Geodude evolves at lv. 25.