Emercoin (EMC) is the mineable coin based on the Emercoin’s own blockchain. You can convert these coins to other cryptos and back on a few exchanges. Emercoin was launched as early as in 2013 as the Peercoin’s fork.
Gnosis (GNO), the native token of the Gnosis platform, is based on the Ethereum blockchain. The token is paired with other cryptos on several exchanges.