Table 2. Unit-cell parameters of mineral dypingite, as obtained in the present study, along with the earlier reported values for dypingite, hydro­magnesite and nesquehonite.

	SG	a (Å)	b (Å)	c (Å)	β (°)	V (Å3)	χ2
Dypingite†	P21	8.8593 (2)	8.3846 (5)	32.655 (4)	97.801 (8)	2402.7 (5)	6.95 (1)
	P2	8.8532 (4)	8.3831 (5)	32.587 (3)	97.648 (5)	2397.2 (6)	6.87 (1)
Dypingite, Mg5(CO3)4(OH)2·5H2O‡	P2/m	10.336 (1)	33.793 (2)	35.706 (2)	114.55 (5)	11345 (1)	1.56 (7)
Hydro­magnesite, Mg5(CO3)4(OH)2·4H2O§	P21/c	10.11 (1)	8.97 (7)	8.38 (3)	114.6 (4)	690.9 (9)	–
Nesquehonite, MgCO3·3H2O¶	P21/m	7.701 (1)	5.365 (2)	12.126 (1)	90.41 (2)	500.983 (3)	–

^†Mineral, this study.

^‡Synthetic (Ballirano et al., 2013 ▸).

^§Mineral (Akao et al., 1974 ▸).

^¶Mineral (Giester et al., 2000 ▸).