WWW-MINCRYST information card

WILLEMITE

NN	Card	Specie	Formula	Space Group
1.	5217	[1], t-phenakite	Zn₂SiO₄	R 3(-)
2.	5218	[2], t-phenakite, syn	Zn₂[SiO₄]	*R 3(-)
3.	5219	[3], t-phenakite, Ge-analogue	Zn₂[GeO₄]	*R 3(-)
4.	5220	[4], t-phenakite	Zn₂SiO₄	R 3(-)
5.	5221	[5], at high psessure	Zn₂SiO₄	I 4(-)2d