Is this the same with Private Key WIF (WIF), Private Key Hexadecimal Format (HEX), Private Key (B64), Mini?
No, isn't. different format
HEX Number: 1-9, A-F
WIF begin with 5
WIF Compressed begin with k or L
Mini privkey example ; S6c56bnXQiBjk9mqSYE7ykVQ7NzrRy
But one address bitcoin you have WIF, WIFC, HEX, B64, B6, MINI, BIP38 key.