Listing description
Pentlandite is an iron-nickel sulfide, (Fe,Ni)9S8.
Pentlandite has a narrow variation range in Ni:Fe but it is usually described
as having a Ni:Fe of 1:1. It also contains minor cobalt,
usually at low levels as a fraction of weight.
Pentlandite forms isometric crystals,
but it is normally found in massive granular aggregates. It is brittle with a hardness of 3.5 - 4 and specific
gravity of 4.6
- 5.0 and is non-magnetic. It has a yellowish bronze color.
Detailed description
Pentlandite is an
effective electrolytic catalyst of hydrogen from water.
Occurrence
Pentlandite is found within the lower margins of mineralised layered
intrusions, the best examples being the Bushveld igneous
complex, South
Africa, the Voiseys Bay troctolite intrusive
complex in Canada, the Duluth
gabbro, in North America, and various other localities throughout the
world. In these locations it forms an important nickel ore.
Pentlandite is also the principal ore mineral won from Kambalda
type komatiitic nickel ore deposits, the type examples of which are
in the Yilgarn Craton of Western
Australia. Similar deposits exist at Nkomati, Namibia, in
the Thompson
Belt, Canada, and a few examples from Brazil.
Pentlandite, but primarily chalcopyrite and PGEs, are
also obtained from the supergiant Norilsk nickel deposit, in trans-Siberian Russia.
The Sudbury
Basin in Ontario, Canada, is
associated with a large meteorite impact crater. The
pentlandite-chalcopyrite-pyrrhotite ore around the Sudbury Structure formed
from sulfide melts that segregated from the melt sheet produced by the impact.
Hydrogen catalysis
Pentlandite is a catalyst for production of hydrogen and oxygen
from water using electricity.[9] It is said to be as effective at this as
platinum, which is significantly rarer and more expensive.
PRICE
$10.7/KG OR $4.86/IB
For more information:
mobile: +2348039721941
contact person: emeaba uche
e-mail: emeabau@yahoo.com
No comments:
Post a Comment