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- The Gemstone Amethyst - The Mineral and Gemstone Kingdom
Amethyst was once highly regarded among the precious gemstones like Ruby and Emerald, but discoveries of huge Amethyst deposits since the 1800's have made Amethyst fairly inexpensive and very obtainable Amethyst colors range from light to dark purple, and the transparent deep purple colors are the most highly regarded
- Amethyst: The purple Quartz mineral Amethyst information and pictures
Amethyst is one of the most popular gems It has a beautiful color and is fairly common, making it an inexpensive and widely used gem Most Amethyst is faceted into jewelry cuts, and some are cut as cabochons Large, massive chunks of Amethyst banded with Quartz is sometimes carved into ornaments Amethyst is also very popular among mineral
- Quartz: The gemstone Quartz information and pictures - The Mineral and . . .
Amethyst Amethyst, the purple variety, is the most popular and valuable Quartz gemstone Amethyst ranges from light to dark purple See the Amethyst gemstone page for more details Citrine Citrine is the yellow, orange, or reddish-brown variety of Quartz It is usually colored by heat treatment of Amethyst or Smoky Quartz Light yellow or lemon
- Citrine: The quartz mineral Citrine information and pictures
It is a widely used as a gemstone, and after Amethyst it is the most popular Quartz gem Most Citrine is formed by heat treating purple Amethyst Citrine may also be produced by heat-treating Smoky Quartz from certain localities In some Amethyst deposits, the Amethyst has been partially or fully changed over to yellow Citrine by natural means
- Mineral Varieties and Other Names A-Z - The Mineral and Gemstone Kingdom
Complete Information Guide to Rocks, Minerals, Gemstones Minerals Minerals Varieties View All Minerals; View by Alphabetical Order
- Minerals - Comprehensive guide to Rocks and Minerals - The Mineral and . . .
Interactive guide to hundreds of rocks and minerals
- The Mineral and Gemstone Kingdom: Home
An interactive reference guide to rocks, minerals, and gemstones The Mineral and Gemstone Kingdom is a free informational and educational guide to rocks, minerals, gemstones, and jewelry
- Topaz: The mineral topaz information and pictures
Topaz is a well-known mineral, occurring in large and beautifully shaped and colored crystals It naturally occurs in many colors, but rarely in pink, purple, and deep blue
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