Cinnabar is a Mercury Sulphide mineral with a chemical formula HgS. It has a bright red colour and a Moh’s hardness of 2-2.5. Cinnabar was originally used as a pigment and cut into jewellery. However, due to its toxicity, these uses have been discontinued.
Cinnabar is a hydrothermal mineral precipitating from ascending hot waters through fissures and forms at low temperatures of less than 200 degree centigrade and at shallow depths. It is associated with Igneous Rocks.
Currently, Cinnabar is used an an ore of Mercury, where its powder is heated in a kiln and mercury vapour sublimes.
Metacinnabar is a polymorph of cinnabar. It has the same chemical composition (HgS) as cinnabar but a different crystal structure. Cinnabar is trigonal, while metacinnabar is isometric. The two minerals should not be confused with one another because metacinnabar has a metallic gray color, a gray-to-black streak and a metallic-to-submetallic luster.
Other forms of cinnabar are:
- Hepatic cinnabar or paragite is an impure brownish variety from the mines of Idrija in the Carniola region of Slovenia, in which the cinnabar is mixed with bituminous and earthy matter.
- Hypercinnabar, crystallizes at high temperature in the hexagonal crystal system.
- Metacinnabar is a black-colored form of mercury(II) sulfide, which crystallizes in the cubic crystal system.
- Synthetic cinnabar is produced by treatment of mercury(II) salts with hydrogen sulfide to precipitate black, synthetic metacinnabar, which is then heated in water. This conversion is promoted by the presence of sodium sulfide.
More information about cinnabar found in: https://geology.com/minerals/cinnabar.shtml
Did you know that Cinnabar means Dragon’s blood?
with the perfect subject. Thanks for a great valuable project. Great work! Keep up the ultra do the webjob!
I have to admit that overall Im really impressed with this particular site.It is easy to observe that youre enthusiastic about your writing. If only I had your writing ability I anticipate more updates and you will be returning. http://www.piano.m106.com
Working every day by day I’m a lot more impressed by your post. Thanks for your personal efforts with expressing the following theme.
nice article thanks for the info very helpful
Hello, I simply enjoy scrapbooking, its so entertaining! http://www.piano.m106.com
These kind of post are always inspiring and I prefer to check out quality content so I happy to discover many first-class point here in the post, writing is simply huge, thank you for the post
Wonderful beat ! I wish to apprentice whilst you amend your site, how can i subscribe for a blog website? The account helped me a appropriate deal. I had been tiny bit acquainted of this your broadcast offered vivid transparent idea
Glorious data here. This interesting post made me smile. Possibly should you throw in a few pictures it would make the entire thing extra interesting. Anyway, in my language, there usually are not much good supply like this.
Site owner, I may be right in saying your web server stopped functioning yesterday because I located this page through Google and all I saw was a failure page. I would email your hosting provider to ensure that it doesnt happen again as your losing visitors. I was using IE 8 browser if that helps.
This is a remarkable post by the way. I am going to go ahead and bookmark this article for my sis to check out later on tomorrow. Keep up the excellent work.
I every time spent my half an hour to read this weblog’s articles or reviews every day along with a mug of coffee.