Amethyst Quartz: The purple gemstone Amethyst information and …
Amethyst is the purple variety of the mineral Quartz, and is its most famous and valuable gem variety. Quartz also contains other gemstones such as Citrine, Rose Quartz, and Smoky Quartz. The color of …
Amethyst: The purple Quartz mineral Amethyst information and pictures
Amethyst is a well known mineral and gemstone. It is the purple variety of the mineral Quartz, and its most valuable and prized variety. Its name derives from the Greek "amethystos", which means "not …
Quartz: The gemstone Quartz information and pictures
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 …
Amethyst from Rhode Island - The Mineral and Gemstone Kingdom
Amethyst from Rhode Island from Diamond Hill, Ashaway, south of Hopkinton, Washington County, Rhode Island
Green Amethyst - The Mineral and Gemstone Kingdom
Green Amethyst - The Mineral and Gemstone Kingdom Light green gem form of Quartz that is artificially colored by heat-treating certain types of Amethyst. Also known as "Prasiolite".
Quartz: The mineral Quartz information and pictures
Much Amethyst is also heat treated to intensify color, and a green transparent form known as "Green Amethyst" or "Prasiolite" is formed by heat treating certain types of Amethyst. There is also a …
Citrine: The quartz mineral Citrine information and pictures
Citrine is the yellow to brownish-red variety of the mineral Quartz. 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 …
Ametrine: The gemstone Ametrine (Amethyst, Citrine) info & pictures
Although Amethyst, the purple variety of Quartz, and Citrine, the yellow/orange variety of Quartz belong to the same scientific mineral classification, they have always been distinguished as individual …
Brazilian Amethyst - The Mineral and Gemstone Kingdom
Brazilian Amethyst - The Mineral and Gemstone Kingdom Amethyst originating from Brazil. This terms is also sometimes used in the gem trade to refer to any South American Amethyst.
Amethyst Quartz - The Mineral and Gemstone Kingdom
Amethyst Quartz - The Mineral and Gemstone Kingdom Mixture of Amethystand Milky Quartz(or clear Quartz). It is purple on top and white or clear on the bottom. It may also be bandedpurple and white. …