MOST hard corals in Fiji and the world are colourful on the outside but when cracked open or broken, will reveal a white skeleton.
One of the exceptions to this is the blue coral (scientific name: Heliopora coerulea), which has a blue skeleton inside, made of aragonite and iron salts which gives it its blue pigmentation.
Read more about it here:
Rare, blue coral found - Fiji Times Online
One of the exceptions to this is the blue coral (scientific name: Heliopora coerulea), which has a blue skeleton inside, made of aragonite and iron salts which gives it its blue pigmentation.
Read more about it here:
Rare, blue coral found - Fiji Times Online