This website uses cookies
By clicking on "accept" you agree that this website uses "cookie" technology. Your web browser stores a random but unique string that allows this website to recognize when a user returns (anonymous, as long as no data has been entered in our order or contact form). This technology is vital for the proper functioning of this website, e.g. that language selection and shopping cart remain when a new page is opened.
Data policy
0








 






Melanterite

Melanterite is a hydrated iron sulphate formed after the decomposition mostly of pyrite due to the interaction of surface waters. After moisture season, especial during the spring time, due drying process the melanterite could be found as an efflorescence on the surface of dried wall rocks with higher content of iron minerals.  Fresh crystalized melanterite looks than very similar as a blue-green algae and could be mistaken for it. Often appears in mines as a post mining secondary formation on mine walls. Melanterite dissolve easy in water and disintegrate fast in hot climate.   


Synonyms: Copperas, Green Vitriol, Iron Vitriol, Melantherite, Sulphate of Iron
Classification: Suphate
Chemical formula: Fe[SO4]·7H2O
Crystal system: Monoclinic
Density (g/cm3): 1.895 - 1,898 measured, 1,897 calculated
Tenacity: Brittle
Cleavage: Perfect on {001}, distinct on {110}
Fracture: Conchoidal
Hardness (Mohs): 2
Colour: Colorless to white or green, also greenish-blue to blue with increased Cu content
Lustre: Vitreous
Streak: White
Transparency: Translucent, Opaque
Application:
For the production of colors for wool and leather as well as for ink

 

 

 
 
TOPGEO Mineralienhandel GmbH
Dr. Petr Zajicek
Commercial register:
HRB 671194 Amtsgericht Ulm
VAT-Id: DE147815490
Gersbach 10
74589 Satteldorf
Germany
Telephone: +49 7950 1345
Telefax: +49 7950 8483
eMail: topgeo.gmbh@t-online.de | mail@topgeo.com
  

1961:0