Heritage Science

Table 3 XRPD mineralogical composition (and semi-quantitative estimation) of the micro-samples of rocks and decay products

From: Mapping of stones and their deterioration forms: the Clock Tower, Venice (Italy)

Minerals	Cal	MgCal	Dol	Gp	Qz	We	WM
Rocks
1E	xxx				**
1N	xxx				*
1S	xxx	x			**
1W	xxx				**		*
2N	xxx				*
3E	xxx
3N	xxx				**
4N	xxx				**
5E	xxx		**		**
5S	xxx			x	**
5W	xxx				**
6E	xxx
8W	xxx				**
9W	xxx				*
Black crusts
2S	xxx			x
4S_b				xxx	x	x
5S-b				xxx	x	x	x
Patinas
4W	xxx				**
7E	xxx				*
7W	xxx				*
8E	xxx				**

Mineral abbreviations after Whitney and Evans [29]: Cal calcite, Dol dolomite, Gp Gypsum, Qz quartz, We weddellite; WM = white mica. Other abbreviations: MgCal Mg-rich calcite. Relative quantity: xxx = very abundant; xx = abundant; x = present; ** = scarce; * = rare

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