Is your crystal Toxic? (C's)

There are many crystals that are toxic when put in water, and many that are toxic out of water. Use this list to see if yours is and how you should store it if it is.

As the list is too long for one blog post, this is the part that covers the "'C's".

For the rest of the alphabet, please see the other blog posts under the 'Toxic Crystals' Category. It is always advised to avoid making potions with gems that are toxic (even if only by a little bit) and should also avoid placing gems inside the body.

Many toxic gems listed include aluminium and a few other elements which are only toxic in exceptionally high doses.

Once polished, stones are generally fine to wear and use but you should be careful if you are the one cutting and polishing them (wear a mask to avoid breathing in particles) and be careful if they should break.

The last 2 columns are completed to the best of my knowledge - I have not heard of many of these stones and some have surprised me but generally speaking, if it's toxic and rough, put it in a box, if it's polished then it has a layer of protection on it so should be safe. It's always best to err on the side of caution though.

Name	Toxicity Risk	What makes it toxic	What should I do with it if its rough?	Is it ok polished?
Calcareous Concretions	High	Organic Material	Be Careful, keep in a specimen box, away from pets, little fingers and damp rooms	Should be fine, do not consume, be careful if it breaks
Calcite	None Known	Soluble in acids	Fine to handle, do not consume	Fine to handle, do not consume
Canasite	None Known		Fine to handle, do not consume	Fine to handle, do not consume
Cancrinite	None Known	Soluble in acids	Fine to handle, do not consume	Fine to handle, do not consume
Carnelian	Low	Silicosis	Fine to handle, do not consume	Fine to handle, do not consume
Cassiterite	None Known		Fine to handle, do not consume	Fine to handle, do not consume
Catapleitte	None Known	Soluble in Acids	Fine to handle, do not consume	Fine to handle, do not consume
Celestite	None Known		Fine to handle, do not consume	Should be fine, do not consume, be careful if it breaks
Ceruleite	High	Arsenic, Copper; Soluble in Acids	Be Careful, keep in a specimen box, away from pets, little fingers and damp rooms	Should be fine, do not consume, be careful if it breaks
Cerussite	High	Lead, Soluble in acid	Be Careful, keep in a specimen box, away from pets, little fingers and damp rooms	Should be fine, do not consume, be careful if it breaks
Chabazite	None Known	Soluble in Acids	Fine to handle, do not consume	Fine to handle, do not consume
Chalcedony	Low	Silicosis	Fine to handle, do not consume	Should be fine, do not consume, be careful if it breaks
Chambersite	Low	Borate, soluble in acids	Fine to handle, do not consume	Fine to handle, do not consume
Charoite	None Known		Fine to handle, do not consume	Fine to handle, do not consume
Chicken Blood Stone	High	Mercury, Silicosis	Be Careful, keep in a specimen box, away from pets, little fingers and damp rooms	Should be fine, do not consume, be careful if it breaks
Childrenite	None Known	Soluble in Acids	Fine to handle, do not consume	Should be fine, do not consume, be careful if it breaks
Chiolite	None Known		Fine to handle, do not consume	Fine to handle, do not consume
Chromite	High	Hexavelent Chromium Traces	Be Careful, keep in a specimen box, away from pets, little fingers and damp rooms	Should be fine, do not consume, be careful if it breaks
Chrysoberyl	None Known		Fine to handle, do not consume	Fine to handle, do not consume

Chrysocolla Chalcedony	Low	Copper, Silicosis	Fine to handle, do not consume	Fine to handle, do not consume
Chrysocolla	Low	Copper, silicosis	Fine to handle, do not consume	Fine to handle, do not consume
Chrysoprase	Low	Copper, Silicosis	Fine to handle, do not consume	Fine to handle, do not consume
Cinnabar	High	Mercury, can react dangerously if swallowed	Be Careful, keep in a specimen box, away from pets, little fingers and damp rooms	Should be fine, do not consume, be careful if it breaks
Citrine	High	Silicosis	Fine to handle, do not consume	Fine to handle, do not consume
Clinochlore	None known		Fine to handle, do not consume	Fine to handle, do not consume
Cobaltite	High	Arsenic, Cobalt can react dangerously if swallowed	Be Careful, keep in a specimen box, away from pets, little fingers and damp rooms	Should be fine, do not consume, be careful if it breaks
Colemanite	None Known	Soluble in acids	Fine to handle, do not consume	Fine to handle, do not consume
Coral	High	Organic Material	Fine to handle, do not consume	Fine to handle, do not consume
Cordierite	None Known	Soluble in acids	Fine to handle, do not consume	Fine to handle, do not consume
Corundum	None Known		Fine to handle, do not consume	Fine to handle, do not consume
Covellite	High	Copper, can react dangerously if swallowed	Be Careful, keep in a specimen box, away from pets, little fingers and damp rooms	Should be fine, do not consume, be careful if it breaks
Crocoite	High	Hexavalent Chromium, Lead, Soluble in Acids	Be Careful, keep in a specimen box, away from pets, little fingers and damp rooms	Should be fine, do not consume, be careful if it breaks
Cryolite	High	Can react dangerously if swallowed	Be Careful, keep in a specimen box, away from pets, little fingers and damp rooms	Should be fine, do not consume, be careful if it breaks
Cuprite	High	Copper, soluble in acids	Be Careful, keep in a specimen box, away from pets, little fingers and damp rooms	Should be fine, do not consume, be careful if it breaks

*list is taken from gemsociety.org with 2 columns added on for your peace of mind

Source: gemsociety.org