Gaiien Region: They're Rocks, Hank: Oligocline and Orocline

Oligocline (Rock) → (Kunzite Gem) Orocline (Rock)
Oligocline (Crystal) → (Crystal Gem) Orocline (Crystal)

#115 - Oligocline (oligo (few) + cline (slope))
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Rock or Crystal-type
They are very friendly and like to be scratched by people with metal tools. They have completely destroyed tour buses by charging in to greet people.
Learnset: Tackle, Defense Curl, Chip Away, Mud-Slap, Bulldoze, Quicksand (Rock-type only): Rock Chip, Rock Throw, Rollout, Smack Down, Stealth Rock (Crystal-type only): Crystal Knife, Diamond Dust, Glass Needle, Glass Transit, Crystal Shard, Crystal Throw

#116 - Orocline (oro (mountain) + cline (slope), the bending of a mountain belt)
Fold Pokémon
Rock or Crystal-type
Orocline formed from polycrystalline stone usually become Rock-type, while large single crystals result in the Crystal-type. This is considered evidence for the strong relationship between the two types.
Base Stats: (80/95/125/45/125/45) (515)
Ability: Rock-type: Sturdy (immune to stuns as well as the OHKO prevention)/Rock Head/[Solid Rock] or Crystal-type: Sturdy/Resonant (causes small amount of damage to opponent after hit)/[Refraction (Reduces super-effective damage)]
Learnset: Stomp, Earthquake, Take Down, Autotomize, Heavy Slam, Fracture, Double-Edge, Reckless Charge (Rock-type only): Rock Slide, Stone Edge, Head Smash, Rock Wrecker (Crystal-type only): Gem Explosion, Power Gem, Twinning, Resonance, Diamond Drill, Diamond Storm, Shatterstorm