An ornamental stone displaying chrysanthemum-like patterns in a contrasting matrix. Marketed specimens are often highlighted by selective painting of the matrix with a dye to over-emphasise the crystal pattern, which in the process obliterates some of it.
The composition of chrysanthemum stone is variable. Material from the "classic" occurrence at Yonghe in Liuyang County of Hunan Province consists of celestine, but specimens recovered from outcrops of the same strata at other places in the area are mostly mixtures of calcite, chalcedony and minor dolomite which replace earlier celestine (Yan et al., 2001). Material from another well known occurrence at Laibin of Guangxi Province consists of strontianite (Zhang and Li, 1999). More recently, holmquistite "suns" in a light schist matrix from the Altay pegmatite field have been traded in China as chrysanthemum stones as well (Wang et al., 2009).
Japanese "chrysanthemum stone" is aragonite (or calcite pseudomorphs after aragonite) in schalstein matrix.
Some may wonder why civilizations and ancient cities grew around volcanoes and earthquake fault lines. It is well documented that fault zones provided minerals/ metals and water supplies.
Beautiful photograph, by the way. I would encourage you if interested in photography to take photographs of every day people.
I was in a small town where people came out to see me because of course I looked like a horse face - having a mustasch and big nose. People held up babies and toddlers to look at me - of course they cried because I looked so different.