Description
The following types of geological environment are producing the majority of inclusions in quartz. For each type the examples of main localities and typical inclusions will be given. They are numbered according to an approximate volume of the specimens, the Alpine fissures being by far the most common ones.
Dr. Jaroslav Hyršl studied geochemistry and mineralogy at the Charles University in Prague and had been teaching mineralogy at the same university until 1996. Since 1990 he has specialized entirely in gemmology and finished his studies in Idar-Oberstein in 1996 (titles FGG and EG). Since 1996 he has a private gemmological laboratory in Prague, and he also worked independently as a consulting gemmologist and mineralogist in Peru, Bolivia and Brazil.