Tumbler Gem Refill Kit Authentic Brazil Amethyst Crystal Rough-Rich Purples! 8 oz

Product Description :

Authentic Amethyst from the mines of Brazil is a highly desirable variety of the Quartz family.
It is predominantly purple, with layers of creamy whites.
Amethyst is a purple variety of quartz (SiO2) and owes its violet color to irradiation, iron impurities (in some cases in conjunction with transition element impurities), and the presence of trace elements, which result in complex crystal lattice substitutions.
The hardness of the mineral is the same as quartz, thus it is suitable for use in jewelry.
Amethyst is produced in abundance from the state of Minas Gerais in Brazil where it occurs in large geodes within volcanic rocks.
Many of the hollow agates of southwestern Brazil and Uruguay contain a crop of amethyst crystals in the interior.
Much of this mined by hand with picks & shovels.
This bag weighs 8 oz.
and will contain an average of 3-8 Gemmy pieces (Depending upon the individual piece size).
Some Very Nice Medium To Dark Purple color here! See images above for what samples of rough & polished stones may look like .
Great refill for any Beginner,novice or advanced Tumbler / hobbyist.
using One of the following popular Rock Tumblers.
NOTE* This Bag DOES Not contain Grits, Findings, jewelry parts or adhesives that may have been included with the original tumbler accessories.
Use the Tumbling instructions from the tumbler manufacturer.

Product Details :