Rainbow echinata or chalice?

[najer]

Got this on Saturday, sold as an echinata but could it be a chalice?

 

[Shep]

Echinata for sure, great looking coral!

 

[Tab28]

Echinata, rainbow colors are common in echinatas. That is why i have several even though they are stealth killers.

Rainbow chalice far less common. The price difference between the two rainbow species is huge.

 

[JaimeAdams]

It's a pretty piece