Quartz with mosaic texture appears as small aggregates of single crystals (between 10[micro]m and 70[micro]m), with sutured edges and undulatory extinction.
Curves of strength versus a can be categorized into three types [7] (Figure 2), namely, U type, undulatory type, and shoulder type, among which, the third one is the most common type.
This indicates a corpuscular interpretation instead of an undulatory one, and when the BH collapses, its unitary property is preserved, and the BH evaporates.
Interestingly, in this regards, the undulatory periodization model was proposed initially by Poliquin (13) with the expectation to generate variations in the athlete's training loads with greater frequency compared to linear periodization.
Blake 2014: 486, n.): the corpuscular theory of light, as opposed to the undulatory that was revived during the romantic age by Thomas Young (1773-1829).
In addition, we considered each of the four types of quartz grain (undulatory quartz, non-undulatory quartz, pollycrystalline quartz with 2-3 crystals per grain, pollycrystalline quartz with more than 3 crystals per grain) defined by Basu et al.