RARER THAN DIAMONDS: 15 Extremely Rare Sightings in Nature That Will Blow Your Mind Posted on Feb 18, 2016 Take a look at these incredibly rare animals, plants and natural phenomena… 1. Bismuth Crystal Random 1 2 3 ⇒ All at one page Share Share RARER THAN DIAMONDS: 15 Extremely Rare Sightings in Nature That Will Blow Your Mind share tweet pin