Amethyst 2-3x6-7mm Faceted Irregular Banded Tyre Bead - 15-16 Inch Natural Chinese Turquoise Oranges and browns are attributed

Oranges and browns are attributed to hematite or goethite

The color of Smoky Quartz is due to natural irradiation and traces of aluminum within the crystal lattice of the stone

Citrine/Rose Quartz/Amethyst

It is also one of the hardest

Flower Agate's color is one of a soft and feminine color

Amethyst 2-3x6-7mm Faceted Irregular Banded Tyre Bead - 15-16 Inch Natural Chinese Turquoise Oranges and browns are attributedAmethyst is a beautiful purple stone, known as a Gem of Fire by ancient cultures. It has been greatly sought after throughout history and was at times valued as highly as Diamond. Today, this semi to precious variety of quartz is found in many locations around the world. The presence of Manganese within the stone produces the purple hue, and variation of the amount of iron in the stone creates a color range from reddish purple to deep violet to light