"' Manganite "'is a mineral composed of manganese oxide-hydroxide, MnO ( OH ), crystallizing in the monoclinic system ( pseudo-orthorhombic ).
22.
"' Niedermayrite "'is a rare hydrated copper cadmium sulfate hydroxide mineral with formula : H 2 O . It crystallizes in the monoclinic system and occurs as encrustations and well formed vitreous blue-green prismatic crystals.
23.
In the monoclinic system there is a second choice of crystal axes that results in a unit cell with the shape of a clinorhombic prism, although this axis setting is very rarely used; this is because the rectangular two-dimensional base layers can also be described with rhombic axes.
24.
CsZr ( NO 3 ) 5 crystallizes in the monoclinic system, space group P2 1 / n with unit cell dimensions a = 7.497 ?b = 11.567 ?c = 14.411 ?? = 96.01?volume 1242.8?3 with 4 formulae per cell, density = 2.855.
