There are no “official” crypto-economy definitions, but we propose:
Therefore a token is built on top of a coin.
Native coins and their blockchain have no value independently as both are inseparable.
The blockchain’s core function is to track and record transactions of native coins between peers. Furthermore, miners and stakers earn transaction fees and mining rewards in native coins.
Therefore, the blockchain would not exist without its native coin and vice versa.
Examples of native coins: Bitcoin, Litecoin, Ether, Monero.
Tokens are not built on their own blockchain.
At first, developers had to create new blockchains for new projects, a process that required a broad array of skills including cryptography, advanced computer science, game theory, mathematics and more.
Rather than building everything from scratch, developers are provided with a safe environment for tokens to be deployed and mature.
Examples of blockchain platforms: Ethereum, Neo, Waves, Omni
Examples of secondary tokens: Gnosis, Bancor