Agate: The gemstone agate information and pictures - The …
WEBAgate is generally an inexpensive gemstone when used in jewelry. It is cut and polished into cabochons, and used as beads for necklaces and bracelets. It is also carved into cameos which can be worn as pendants. Agate makes an exquisite ornamental stone, and is cut into slabs, animal carvings, ornate book ends, and small statues and figures ...
Agate chalcedony: The mineral Agate information and pictures
WEBAgate is the banded form of the mineral Chalcedony, which is a microcrystalline variety of Quartz. Agate is the most varied and popular type of Chalcedony, having many varieties on its own. Although the pattern on every Agate is unique, the locality of an Agate will provide resemblances in banding style and color, thus lending many Agates with ...
The Gemstone Carnelian - The Mineral and Gemstone Kingdom
WEBUSES. Carnelian is a minor jewelry gemstone. It is cut and polished into cabochon s, and used as beads for necklaces and bracelets. It is also carved into cameo s which can be worn as pendants. Carnelian is occasionally used as an ornamental stone and carved into animal carvings or ornamental objects. OTHER NAMES.
The Gemstone Chalcedony - The Mineral and Gemstone Kingdom
WEBChalcedony is found in all types of colors, and its varieties are named based on color. The variety Agate is a multicolored form, well known for its distinctive banding patterns. Some forms of Chalcedony, such as Chrysoprase, are intensely colored, while others are light. In blue Chalcedony, the deeper the color, the more desirable the gemstone.
Onyx: The gemstone onyx information and pictures - The Mineral …
WEBThe term Onyx is occasionally used to described any engraved stone with a solid color base, or it may describe any banded gemstone with parallel banding. In its solid black form, Onyx is the most traditional black gemstone. Onyx is an ancient gemstone, having been used in jewelry and as an ornamental gemstone for carvings since antiquity. Onyx ...
The Mineral chalcedony - The Mineral and Gemstone Kingdom
WEBThe Mineral chalcedony. Chalcedony is not scientifically its own mineral species, but rather a form of Quartz in microcrystalline form. However, the name is an old name, and almost all mineral reference guides and collectors distinguish Chalcedony separately from Quartz. In the gem trade, the name Chalcedony usually describes only white or blue ...
Mineral Varieties and Other Names A-Z - The Mineral and …
WEBComplete Information Guide to Rocks, Minerals, & Gemstones . Minerals. Minerals & Varieties. View All Minerals; View by Alphabetical Order
Jasper: The gemstone jasper information and pictures - The …
WEBThe Gemstone Jasper. Jasper is an opaque variety of Chalcedony, and is usually associated with brown, yellow, or reddish colors, but may be used to describe other opaque colors of Chalcedony such as dark or mottled green, orange, and black. Jasper is almost always multicolored, with unique color patterns and habits. Chemical Formula. SiO 2. …
Agate Jasper - The Mineral and Gemstone Kingdom
WEBAgate Jasper. Opaque multicolored Jasper, or Jasper with banding; may also refer to a single stone with a combination of both Agate and Jasper. < Back.
Jasper chalcedony: The mineral Jasper information and pictures
WEBJasper is an opaque form of Chalcedony, which is a microcrystalline variety of the mineral Quartz. It often contains an abundance of impurities, and therefore some regard it as a rock instead of a mineral. Jasper is usually associated with brown, yellow, or reddish colors, but may be used to describe other opaque colors of Chalcedony such as ...