Mineral egg group
84 Pokemon belong to the Mineral egg group in Cobblemon. Any two of these that are opposite genders can breed together, and Ditto works with all of them.
Rock and Steel heavy. Useful for passing egg moves between otherwise unrelated species.
#0074
Geodude
rockground
#0075
Graveler
rockground
#0076
Golem
rockground
#0081
Magnemite
electricsteel
#0082
Magneton
electricsteel
#0095
Onix
rockground
#0100
Voltorb
electric
#0101
Electrode
electric
#0137
Porygon
normal
#0185
Sudowoodo
rock
#0208
Steelix
steelground
#0233
Porygon2
normal
#0292
Shedinja
bugghost
#0299
Nosepass
rock
#0337
Lunatone
rockpsychic
#0338
Solrock
rockpsychic
#0343
Baltoy
groundpsychic
#0344
Claydol
groundpsychic
#0361
Snorunt
ice
#0362
Glalie
ice
#0374
Beldum
steelpsychic
#0375
Metang
steelpsychic
#0376
Metagross
steelpsychic
#0436
Bronzor
steelpsychic
#0437
Bronzong
steelpsychic
#0462
Magnezone
electricsteel
#0474
Porygon Z
normal
#0476
Probopass
rocksteel
#0478
Froslass
iceghost
#0524
Roggenrola
rock
#0525
Boldore
rock
#0526
Gigalith
rock
#0557
Dwebble
bugrock
#0558
Crustle
bugrock
#0562
Yamask
ghost
#0563
Cofagrigus
ghost
#0568
Trubbish
poison
#0569
Garbodor
poison
#0582
Vanillite
ice
#0583
Vanillish
ice
#0584
Vanilluxe
ice
#0597
Ferroseed
grasssteel
#0598
Ferrothorn
grasssteel
#0599
Klink
steel
#0600
Klang
steel
#0601
Klinklang
steel
#0615
Cryogonal
ice
#0622
Golett
groundghost
#0623
Golurk
groundghost
#0679
Honedge
steelghost
#0680
Doublade
steelghost
#0681
Aegislash Shield
steelghost
#0703
Carbink
rockfairy
#0707
Klefki
steelfairy
#0712
Bergmite
ice
#0713
Avalugg
ice
#0774
Minior Red Meteor
rock
#0781
Dhelmise
ghostgrass
#0837
Rolycoly
rock
#0838
Carkol
rockfire
#0839
Coalossal
rockfire
#0854
Sinistea
ghost
#0855
Polteageist
ghost
#0867
Runerigus
groundghost
#0870
Falinks
fighting
#0874
Stonjourner
rock
#0878
Cufant
steel
#0879
Copperajah
steel
#0884
Duraludon
steeldragon
#0926
Fidough
fairy
#0927
Dachsbun
fairy
#0932
Nacli
rock
#0933
Naclstack
rock
#0934
Garganacl
rock
#0965
Varoom
steelpoison
#0966
Revavroom
steelpoison
#0969
Glimmet
rockpoison
#0970
Glimmora
rockpoison
#0996
Frigibax
dragonice
#0997
Arctibax
dragonice
#0998
Baxcalibur
dragonice
#1012
Poltchageist
grassghost
#1013
Sinistcha
grassghost
#1018
Archaludon
steeldragon
Geodude
rockground
#0075
Graveler
rockground
#0076
Golem
rockground
#0081
Magnemite
electricsteel
#0082
Magneton
electricsteel
#0095
Onix
rockground
#0100
Voltorb
electric
#0101
Electrode
electric
#0137
Porygon
normal
#0185
Sudowoodo
rock
#0208
Steelix
steelground
#0233
Porygon2
normal
#0292
Shedinja
bugghost
#0299
Nosepass
rock
#0337
Lunatone
rockpsychic
#0338
Solrock
rockpsychic
#0343
Baltoy
groundpsychic
#0344
Claydol
groundpsychic
#0361
Snorunt
ice
#0362
Glalie
ice
#0374
Beldum
steelpsychic
#0375
Metang
steelpsychic
#0376
Metagross
steelpsychic
#0436
Bronzor
steelpsychic
#0437
Bronzong
steelpsychic
#0462
Magnezone
electricsteel
#0474
Porygon Z
normal
#0476
Probopass
rocksteel
#0478
Froslass
iceghost
#0524
Roggenrola
rock
#0525
Boldore
rock
#0526
Gigalith
rock
#0557
Dwebble
bugrock
#0558
Crustle
bugrock
#0562
Yamask
ghost
#0563
Cofagrigus
ghost
#0568
Trubbish
poison
#0569
Garbodor
poison
#0582
Vanillite
ice
#0583
Vanillish
ice
#0584
Vanilluxe
ice
#0597
Ferroseed
grasssteel
#0598
Ferrothorn
grasssteel
#0599
Klink
steel
#0600
Klang
steel
#0601
Klinklang
steel
#0615
Cryogonal
ice
#0622
Golett
groundghost
#0623
Golurk
groundghost
#0679
Honedge
steelghost
#0680
Doublade
steelghost
#0681
Aegislash Shield
steelghost
#0703
Carbink
rockfairy
#0707
Klefki
steelfairy
#0712
Bergmite
ice
#0713
Avalugg
ice
#0774
Minior Red Meteor
rock
#0781
Dhelmise
ghostgrass
#0837
Rolycoly
rock
#0838
Carkol
rockfire
#0839
Coalossal
rockfire
#0854
Sinistea
ghost
#0855
Polteageist
ghost
#0867
Runerigus
groundghost
#0870
Falinks
fighting
#0874
Stonjourner
rock
#0878
Cufant
steel
#0879
Copperajah
steel
#0884
Duraludon
steeldragon
#0926
Fidough
fairy
#0927
Dachsbun
fairy
#0932
Nacli
rock
#0933
Naclstack
rock
#0934
Garganacl
rock
#0965
Varoom
steelpoison
#0966
Revavroom
steelpoison
#0969
Glimmet
rockpoison
#0970
Glimmora
rockpoison
#0996
Frigibax
dragonice
#0997
Arctibax
dragonice
#0998
Baxcalibur
dragonice
#1012
Poltchageist
grassghost
#1013
Sinistcha
grassghost
#1018
Archaludon
steeldragon
Breeding within Mineral
Sharing an egg group is only the first requirement. To actually get the Pokemon you want:
- Put both parents in a pasture block and claim the land it sits on.
- Give one parent a Destiny Knot so five IVs pass down instead of three.
- Give the other an Everstone carrying the nature you want.
- Make sure the father knows any egg moves you need, since those pass down too.
- Replace parents with better offspring as you go, and expect many eggs.
Full walkthrough in breeding on TalonMC.