Black Tourmaline 9x13-12x16mm Top Drill Irregular Flat Drop - 15-16 Inch Paperclip Chain It is a particularly unusual

It is a particularly unusual gem because it exhibits a special optical property known as tenebrescence

Porcelain Agate is a natural agate that is dyed and heated to give it the unique blue/white color and pattern that resembles porcelain

The only commercial mine for stichtite serpentine is located on Stichtite Hill

All species of garnets possess similar physical properties and crystal forms

Black Tourmaline 9x13-12x16mm Top Drill Irregular Flat Drop - 15-16 Inch Paperclip Chain It is a particularly unusualBlack Tourmaline is a black crystalline aluminum borosilicate mineral with occasional light gray inclusions that appear as flecks or veins. Tourmaline is classified as a semiprecious stone and occurs in a vast array of colors, everything from colorless to black, from pastel to bright to dark. It can even exhibit various colors within the same specimen. Its name derives from the Sinhalese word turamali, which translates to stone of many colors. Due to