Caswellsilverite (CrNaS₂) Crystal Structure

Last modified 9 July 2001

You can now

• see the structure from several perspectives;
• examine the structure with an external viewer; or
• download the coordinates of the atoms in these pictures in XYZ format.

• Prototype: CrNaS₂
• Strukturbericht Designnation: F5₁
• Pearson Symbol: hR4
• Space Group: R(-3)m (Cartesian and lattice coordinate listings available)
• Number: 166
• Other compounds with this structure: AgAsSe₂, HoS₂Tl, AlCV₂ Te₂TlY, many others
• Primitive Vectors:

  a and c are the lattice constants of the equivalent hexagonal unit cell.

  • A₁ = + ½ a X - ½ 3^-1/2 a Y + 1/3 c Z
  • A₃ = + 3^-1/2 a Y + 1/3 c Z
  • A₂ = - ½ a X - ½ 3^-1/2 a Y + 1/3 c Z
• Basis Vectors:

  B1	=		0		(Cr)	(1a)
  B2	=	½ (A1 + A2 + A3)	=	½ c Z	(Na)	(1b)
  B3	=	+ x (A1 + A2 + A3)	=	+ x c Z	(S)	(2c)
  B4	=	- x (A1 + A2 + A3)	=	- x c Z	(S)	(2c)

Go back to The Sulfur and its Compounts page.

Go back to Crystal Lattice Structure page.

Structures indexed by:

• Strukturbericht Designation
• Pearson Symbol
• Space Group
• Prototype