The star's position depends both on the location of the light source and the position of the observer (Schmetzer and Krzemnicki, 2006 Killingback, 2008). The six-rayed star is caused by reflections of the light from embedded fibres that intersect at an angle of 60°. Rose quartz from some localities shows asterism when cut as spheres or cabochons, much like that seen in certain sapphires. Rose quartz is dichroic, reflecting a preferential orientation of the included fibres. The colour of the fibrous mineral as well as the colour of rose quartz is stable up to temperatures of about 575☌ (Lehmann and Bambauer, 1978 Goreva et al, 2001) and is also generally stable in ultraviolet light (Goreva et al, 2001), although there have been occasional reports of material that pales quickly in daylight. These inclusions are probably the result of an exsolution from an initially homogeneous material. Rose quartz is always showing a hazy to translucent character due to microscopic fibrous inclusions of a pink borosilicate mineral related to dumortierite(Applin and Hicks, 1987 Goreva et al, 2001 Ma et al, 2002), which group leader Rossman names "dididumortierite" (Nadin, 2007). It occurs in different hues of pink, sometimes blueish, sometimes more reddish irradiation may cause the formation of smoky quartz colour centers and add a grey tone.
![mozambique rose quartz mozambique rose quartz](https://i.etsystatic.com/8539026/r/il/cc880f/3186929613/il_fullxfull.3186929613_s50s.jpg)
One is found in translucent masses made of intergrown anhedral crystals.
![mozambique rose quartz mozambique rose quartz](https://ae01.alicdn.com/kf/HTB1LasUIVOWBuNjy0Fiq6xFxVXa3/900g-to-1000g-per-pack-Natural-Raw-Pink-Rose-Quartz-Crystal-Stone-Mozambique-feng-shui-stone.jpg)
![mozambique rose quartz mozambique rose quartz](https://i.etsystatic.com/12181142/r/il/83a1fa/3130731491/il_1588xN.3130731491_burh.jpg)
Two varieties of quartz are commonly called "rose quartz".ġ.