Jaspillite
Appearance
![](http://178.128.105.246/host-http-upload.wikimedia.org/wikipedia/commons/thumb/1/11/BIF_%28jaspilite_meta-BIF%2C_Paleoproterozoic_Minas_Gerais.jpg/220px-BIF_%28jaspilite_meta-BIF%2C_Paleoproterozoic_Minas_Gerais.jpg)
Jaspillite, or jaspilite, is a chemical rock formed similar to chert. It is usually iron rich. It also has the name jasper taconite.
Jaspillite is typically a layered mixture of hematite and quartz. It is common in the banded iron formation rocks of Proterozoic and Archaean age in the Canadian shield of North America.
Jaspillite is also a sedimentary rock.in certain lead-zinc ore deposits.
It is used as a gemstone.[1]
References
[change | change source]- ↑ Gemstones of North America - Volume 1, John Sinkankas - 1959 p.345