CORAL
Fossilised - not to be mistaken with endangered Coral. See below.
 
Healing : Activates and energises the throat chakra. Improves ones communicative skills and abilities. Can be used in the treatment of throat aliments. Opens and activates the base chakra. Said to protect one grom depression and despondency.
 
Fossil coral is a natural gemstone that is created when prehistoric coral is gradually replaced with agate. Corals are marine animals and it is their skeletons that are fossilized and preserved. The fossil coral forms through hardened deposits left by silica-rich waters. The entire process can take over 20 million years.
The proper name for fossil coral is "agatized coral" or "agatized fossil coral." Agate, with its silicon dioxide composition (SiO2), is a variety of naturally occurring chalcedony--or microcrystalline quartz--rather than a type of coral. For this reason, fossil coral should not be mistaken for endangered or protected reef coral or precious coral. Fossil coral is also much harder than precious coral.