SOLD
SM20-159
Quartz ("Pink Quartz")
Small Cabinet, 9.0 x 7.3 x 4.5 cm
near Galilea, Minas Gerais, Brazil
SOLD

Video on Instagram

A trio of pink Quartz crystals dominates this specimen from a small and strange 2019 discovery of pink-colored quartz Minas Gerais, Brazil. The three crystals rise up from a small mass of milky Quartz and each of them are about 4 cm in length and 3 cm in width. Looking at, and into, the terminations of these pink Quartz crystals, conspicuous small dots and apparent crystals of lovely, bright pink, inclusions can be observed just below the Quartz surface. Although pink, it is VERY unusual in that it really doesn't qualify as "Rose Quartz" due to the obvious and distinct pink inclusions! This was such an oddity that we sent it to the world expert on color in gem crystals, Dr. George Rossman at CalTech, to obtain his opinion. He suggests, in this case, that the pink color may NOT be attributed to "tiny pink fibers of an aluminoborosilicate mineral related to Dumortierite in the Quartz" as is often the case with Rose Quartz and color in other quartz. In this case, the color is simply due to molecular defects in the crystal lattice caused by minute substitutions of Aluminum and Phosphorus for Silicon, in some tiny fraction of molecules inside the crystal. The color results because of different effects of ionizing radiation on the aluminum-phosphorus as opposed to silicon, and gives the appearance of pink color without actually having a chromophore or inclusion in the normal sense. Very cool and unusual! (Comes with a write-up of more detail, concerning the origin of the two kinds of pink color in Quartz by Dr. Rossman.) Bottom line, this is a gorgeous "pink quartz," that is scientifically just not a "rose quartz" by any standard use of the term by collectors or scientists - it was a surprise to us, as well! So far as we know, there were only a few specimens, of which we obtained 4.