What is the formula for nickel arsenide?
NiAs
nickel arsenide/Formula
What type of lattice is nickel arsenide?
Nickel Arsenide follows an hcp or hexagonal closed packed unit cell which is composed of a cube with one eight atoms at each of its corners, four atoms at its edges and two atoms at the center of the cube.
How is Niccolite formed?
Nickeline is formed by hydrothermal modification of ultramafic rocks and associated ore deposits, and may be formed by replacement of nickel-copper bearing sulfides (replacing pentlandite, and in association with copper arsenic sulfides), or via metasomatism of sulfide-free ultramafic rocks, where metasomatic fluids …
Is nickel arsenide ionic?
A type of ionic crystal structure in which the anions have a distorted hexagonal close packed arrangement with the cations occupying the octahedral holes.
What is the molar mass Cuni?
DTXSID00430707. 12357-13-0. More… Molecular Weight. 122.24.
What type of rock is Skutterudite?
The mineral has a bright metallic luster, and is tin white or light steel gray in color with a black streak. The specific gravity is 6.5 and the hardness is 5.5–6. Its crystal structure is isometric with cube and octahedron forms similar to that of pyrite….
| Skutterudite | |
|---|---|
| Specific gravity | 6.5 |
| References |
How many atoms does the unit cell of the hexagonal close packed hcp contain?
6 atoms
The hexagonal closest packed (hcp) has a coordination number of 12 and contains 6 atoms per unit cell.
What is the lattice and the basis of NiAs?
NiAs structure The NaCl structure can be described a face-centered cubic lattice with all of the octahedral holes filled. The cations are in octahedral coordination, so each cation is coordinated to six anions. The anions are also coordinated to six cations, but they occupy trigonal prismatic sites.
Why is niccolite called copper nickel?
noun The common German name of the mineral niccolite: so called because, though an ore of nickel, it has a coppery-red color.
What do we use Skutterudite for?
Skutterudite is used as an ore of cobalt and nickel. Well-crystallized specimens are highly valued among collectors.
What are Skutterudite used for?
“Skutterudites, with their complex structures composed of heavy atoms like antimony, allow us to do that.” A team at JPL is working on turning skutterudites into thermocouples. A thermocouple is a device that generates an electrical voltage from the temperature difference in its components.