The Gemstone Tanzanite - The Mineral and Gemstone Kingdom
网页Tanzanite is the blue to violet gem variety of the mineral Zoisite. Since its relatively recent discovery in 1967, it has become a mainstream and popular gemstone, and is used extensively in jewelry. To date, Tanzanite is found only in the Arusha region of the African country of Tanzania, and it was named after its country of origin. The name ...
Zoisite: The mineral zoisite and tanzanite information and pictures
网页The variety Tanzanite has become an extremely popular mineral and gemstone, and is heavily marketed by the jewelry industry. Fine Tanzanite gemstones can be extremely costly and cherished. The pink variety, Thulite, is used as a minor gemstone, and is most often cut as cabochons. The green variety associated with Ruby is also used as a minor ...
Tanzanite - The Mineral and Gemstone Kingdom
网页Tanzanite. Blue to purplish-blue variety of Zoisite found in the Merelani Hills in the Arusha region of ...
The Gemstone Zoisite - The Mineral and Gemstone Kingdom
网页Zoisite is a mineral that includes several gem varieties. The most important and well-known is Tanzanite, a sensational blue gemstone. The variety Thulite is used as a minor pink gemstone. A variety known as Ruby Zoisite, which is green Zoisite associated with opaque red Ruby (and often black amphibole streaks), is used as a carving gemstone as ...
Iolite: The gemstone iolite information and pictures - The Mineral …
网页The Gemstone Iolite. Iolite is the gem variety of the mineral Cordierite. It describes the transparent to translucent form of Cordierite, and it has recently become a popular gemstone. Iolite can be light to deep blue, and usually has a purplish tinge to it. Deeper colored stones are more valuable. Iolite is very affordable and durable, and can ...
Beryl: The mineral Beryl info & pictures (aquamarine, emerald)
网页Beryl is a most alluring and popular mineral. It occurs in a diversity of colors, and has several important gemstone varieties. The green variety, Emerald, is one of the most precious gems. Only green Beryl with a deep green color is called Emerald; light green Beryl is simply "Green Beryl" (or Heliodor if it has a yellowish color.)
The pink gemstone Thulite (Zoisite): information and pictures
网页Thulite is the pink to reddish variety of the mineral Zoisite. It is an opaque stone composed of dense crystals, and is used as a minor gemstone. Opaque. May be translucent in thin backlit sections. Thulite is well-known in Norway, where it was first found. It is named after the mythical region of Thule, which many identify with Norway.
Titanite (sphene): The mineral Titanite information and pictures
网页The name Sphene is still frequently used, especially in Europe. Sphene also persists as the more prevalent name for faceted Titanite gemstones or transparent crystal forms. Titanite is known for its high luster and dispersion rate. This results in transparent Titanite crystals being brilliant, and opaque Titanite being highly reflective.
Yellow Zoisite (Yellow Tanzanite) - The Mineral and Gemstone …
网页Highly lustrous and gemmy yellow Zoisite crystals from the same deposit as Tanzanite. It has a rare, straw-yellow color to it that is mesmerizing, if pastel in hue. It is often called "Yellow Tanzanite", and in this quality is quite rare. Locality: Merelani Hills, western slope of Lelatama Mountains, Arusha Region, Tanzania: Dimensions: 25 x 12 ...
Unheated Natural Tanzanite Crystal - The Mineral and Gemstone …
网页Virtually all Tanzanite heat treated to produce its fine color; this specimen shows how Tanzanite looks in its natural state, with a grayish-green to brownish tone. There are two different angles shown here in this photo which exhibit its different colors due to this mineral's strong pleochroism .