Iron gives amethyst its purple color.
Light amethyst is a color. A pearl can be that color, but it is not a specific kind of pearl.
color
Amethyst is quartz that contains an impurity that imparts the purple color. The impurity in amethyst is iron.
An amethyst is purple or another color depending on the variety.
Only if it is used as a color. Otherwise, an amethyst is a gem, which is a noun.
Amethyst is the purple variety of quartz. Quartz is Silicon Dioxide SiO2. The color comes from trace elements of manganese/Iron Oxide Fe2O3. To get the best color and best uniform color amethyst is heated.
Amethyst gets its purple color from trace amounts of iron impurities within the quartz crystal structure. These impurities create color centers in the crystal lattice that absorb light in the visible spectrum, resulting in the characteristic purple hue of amethyst.
Amethyst :)
white :)
The birthstone of February is Amethyst!
violet