Quartz comes in many different colours. These colours are violet (amethyst), golden yellow (citrine), pink/peachish (rose quartz), brown (smoky quartz), green (prasiolite) and colourless (rock crystal).
Quartz is colorless when pure, but can be found in all colors of the rainbow, including purple, pink, red, blue, yellow, orange, brown, green, etc; and many shades thereof.
What color is the streak of quartz
What is quartz luster
Impurities.
White. All forms of quartz will have a white streak, regardless of specimen color.
Amethyst is a violet form of quartz.
The value of smoky quartz will vary with the color. Medium smokey quartz is valued at approximately $38 per carat. Lighter and darker shades will be worth less.
Amethyst is purple or violet quartz, used as a gem stone.
Pure quartz is a colorless mineral, and so a pure quartz sandstone will appear white due to multiple reflections and refractions between grains. However, impurities in the sandstone may give it some other color. What color it turns out as depends on the impurities. For example, iron oxide will produce a red sandstone.
Quartz is a color.
Quartz has a white streak.
White. All forms of quartz will have a white streak, regardless of specimen color.
Amethyst is a violet form of quartz.
White.
Quartz is colorless when pure, but can be found in all colors of the rainbow.
Impurities gives quartz its many beautiful colors.
White.
pink
Pure quartz is colorless. Trace amounts of transition metal impurities in the quartz are what give it its color.
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.
It will be shiny or smooth and its a lighter color