
It is the more or less intense yellow color variety of "quartz" (silicon oxide crystallizing in the trigonal system)
General Physical properties: hardness 7 - density 2.65 g/cm3 - refractive index 1.544 and 1.553
Weight 6.26 Kt
Size 11,30x11,30x6,80 mm
Cut: sharp-edged yoke
Color: intense yellow
Purity: pure
Treatments: thermal
Origin: Brazil