Not all mines sell for higher prices so I'm compiling a list here of what each mine will give you PER STACK.
If u wish to help me and are a Donator like I am make sure you account for your sell multiplier.
A-Mine
Stone $2560
Coal $5120
Iron Ingot $5120

B-Mine
(New item Coal Block)
Stone $3200
Coal $4800
Iron Ingot $6400
Coal Block $48000

C-Mine
(New item Iron Block)
(Removed Item Stone)
Coal $8000
Iron Ingot $10240
Coal Block $64000
Iron Block $128000

D-Mine
Coal $48000
Iron Ingot $48000
Coal Block $512000
Iron Block $512000

E-Mine
Coal $128000
Iron Ingot $64000
Coal Block $640000
Iron Block $640000

 

When u get to P then everything is fair :D

 

Diamond ore is bad. sell ur gold blocks /p h blockypro123 3.2 bill an inv. and diamond blocks 3.5 billion an inv. Hope this helped!