Crinoid Calyx - Clitheroe #8 Popular Crystals_Apophyllite and has crystallised cavities

and has crystallised cavities

the bright blue

and they have formed that way due to the way they developed - amongst the Angel Wing Calcite blades that rarely grow inside Brazilian Amethyst geodes

Increases courage

This beautiful iridescent Calcite specimen is from Oskaloosa

Crinoid Calyx - Clitheroe #8 Popular Crystals_Apophyllite and has crystallised cavitiesThis is a fossilized Crinoid Calyx from the Salthill Quarry in Clitheroe Lancashire. You will receive the exact fossil as pictured. Crinoids, sometimes called "sea lilies" (despite being animals, not plants), are marine echinoderms related to starfish and sea urchins. Theyve been floating, crawling, or anchoring themselves to the seabed for over 450 million years! While modern crinoids still exist, the fossilised remains of their ancient cousins are