Rare card
Blue John (mineral)
- Value
- 50 W
- Attack
- 789
- Defence
- 631
- Players
- 0
Blue John (also known as Derbyshire Spar) is a semi-precious mineral, a rare form of fluorite with bands of a purple-blue or yellowish colour. In the United Kingdom it is found only at Blue John Cavern and Treak Cliff Cavern at Castleton in Derbyshire.
Get Blue John (mineral) in your collection
Every Wikilord card is a Wikipedia article. Open packs for free, trade, battle and climb the leaderboard.
Open a free pack