Crystal Lattice Structures:	Creation Date: 14 Oct 2002
	Last Modified: 21 Oct 2004

The Cubic AsCu₃ S₄ (Lazarevicite) Structure

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.
• visualize the structure (Uses the JMOL Applet)

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• This structure is very similar to Cu₃S₄V (H2₄), except that in this case the Copper atoms are on the cubic cubic faces [the (3c) sites] rather than the cubic edges [the (3d) sites].
• If we replace the Arsenic atom by Copper, and set the x parameter for the Sulfur atoms to ¼, then this becomes the Zincblende (B3) structure.
• This structure should not be confused with the H2₅ (Enargite) form of AsCu₃S₄, which is a distorted hexagonal sp²-like structure.

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• Prototype: AsCu₃S₄
• Pearson Symbol: cP8
• Space Group: P43m (Cartesian and lattice coordinate listings available)
• Number: 215
• Primitive Vectors:

  A1	=	a X
  A2	=	a Y
  A3	=	a Z

• Basis Vectors:

  B1	=		0		(As)	(1a)
  B2	=	½ A2 + ½ A3	=	½ a Y + ½ a Z	(Cu)	(3c)
  B3	=	½ A1 + ½ A3	=	½ a X + ½ a Z	(Cu)	(3c)
  B4	=	½ A1 + ½ A2	=	½ a X + ½ a Y	(Cu)	(3c)
  B5	=	+ x A1 + x A2 + x A3	=	+ x a X + x a Y + x a Z	(S)	(4e)
  B6	=	+ x A1 - x A2 - x A3	=	+ x a X - x a Y - x a Z	(S)	(4e)
  B7	=	- x A1 + x A2 - x A3	=	- x a X + x a Y - x a Z	(S)	(4e)
  B8	=	- x A1 - x A2 + x A3	=	- x a X - x a Y + x a Z	(S)	(4e)

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Structures indexed by: Strukturbericht Symbol Pearson Symbol Space Group Prototype

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