Orthoclase
Orthoclase as a mineral is a common feldspar , but when described as a gemstone it re... More
Orthoclase as a mineral is a common feldspar, but when described as a gemstone it refers to a rare transparent yellowish form of the mineral Sanidine that is found in Madagascar. Until recently, this gemstone was though to be Orthoclase, and only recently have analyses determined it as being Sanidine. Despite this, it is still called Orthoclase on the gemstone market since the name has already been established. This gemstone can have a very pleasant yellow color, sometimes with some hints of brown in it. A purer yellow color is more desirable, although champagne colored stones are also popular. A new, apple-green type has recently been discovered, though its production is very limited. Hide
Orthoclase GEMSTONE PHOTOS
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Orthoclase IN THE ROUGH PHOTOS
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Pearl
Pearls have been highly valued as gemstones since antiquity, and their allure and bea... More
Pearls have been highly valued as gemstones since antiquity, and their allure and beauty has always been magnified by the difficulty of obtaining them in early times. Unlike most other gemstones which are minerals, Pearls are organic and are formed by living organisms. They are generally formed within the soft tissue layer of mollusks such as oysters and mussels. Pearls are composed of calcium carbonate (in the form of Aragonite) and organic conchiolin that build up as concentric layers as they are secreted by their host. Hide
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Peridot
Peridot is a well known and ancient gemstone, with jewelry pieces dating all the way ... More
Peridot is a well-known and ancient gemstone, with jewelry pieces dating all the way back to the Pharaohs in Egypt. The gem variety of the mineral Olivine, it makes a lovely light green to olive-green gemstone. The intensity of color depends on the amount of iron present in a Peridot's chemical structure; the more iron it contains the deeper green it will be. The most desirable color of Peridot is deep olive-green with a slight yellowish tint. Deeper olive-green tones tend to be more valuable than lighter colored greens and yellowish-greens. Hide
Peridot IN THE ROUGH PHOTOS
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Platinum
Platinum is the most valued precious metal its value exceeds even that of Gold . It h... More
Platinum is the most valued precious metal; its value exceeds even that of Gold. It has a beautiful silver-white color, and, unlike Silver, does not tarnish. It is unaffected by common household chemicals and will not get damaged or discolored by chlorine, bleach, or detergents. It is tougher than all precious jewelry metals, though due to its flexible tenacity it still must be alloyed with other metals to prevent it from bending. Natural Platinum usually contains small amounts of the rare element iridium. In jewelry, iridium is alloyed with the Platinum to increase its toughness. Platinum jewelry is usually 90 to 95 percent pure. Hide
Platinum IN THE ROUGH PHOTOS
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Prehnite
Prehnite gemstones are usually light green in color, with a whitish hue or yellowish ... More
Prehnite gemstones are usually light green in color, with a whitish hue or yellowish tinge. Deep green gemstones are not common. Prehnite gemstones often appear cloudy or velvety, and rarely fully transparent. They may also contain colors zones of lighter and darker green. Hide
Prehnite IN THE ROUGH PHOTOS
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Pyrite
Pyrite, often called Fools Gold , has a silvery yellow to golden metallic color. It i... More
Pyrite, often called "Fools Gold", has a silvery-yellow to golden metallic color. It is very common and may occur in large crystals. It has been used by ancient civilizations as jewelry, but is hardly used nowadays. Pyrite is sometimes incorrectly known as Marcasite in the gemstone trade. Marcasite is mineral that is a polymorph of Pyrite, and can be fragile and unstable, and is not fit for gemstone use. Hide
Pyrite IN THE ROUGH PHOTOS
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Pyrope
Pyrope is the most well known gemstone form of Garnet . The term Garnet describes a g... More
Pyrope is the most well-known gemstone form of Garnet. The term Garnet describes a group name for several closely related minerals
that form important gemstones, and Pyrope is an individual member mineral of
the Garnet group. Its dark, blood-red color is distinct and attractive, and makes a fine Garnet gemstone. In the gem trade, the term Pyrope is rarely used on its own. It is
either generically called "Garnet", or "Pyrope Garnet". Hide
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Color-Change Garnet is not usually associated as being a Pyrope Garnet. However, Pyrope is the closest Garnet form, so those pictures are listed here in addition to the standard Pyrope photos.
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Pyrope IN THE ROUGH PHOTOS
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Quartz
Quartz is one of the most common and varied minerals on earth, and its abundant color... More
Quartz is one of the most common and varied minerals on earth, and its abundant colors produce many gemstone types. Amethyst and Citrine are the most popular and valuable gem varieties of Quartz, but other forms also make important gemstones. Chalcedony describes any form of Quartz that is microcrystalline, in compact form without any visible crystals. Chalcedony also has several varieties used as gemstones, most notably Agate, Carnelian, Tiger's Eye, and Chrysoprase. Hide
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Additional images for the varieties Amethyst, Citrine, Smoky Quartz, Rose Quartz, Rutilated Quartz, and Chalcedony are listed separately.
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Rhodochrosite
Rhodochrosite has a lovely natural pink to red color. Rhodochrosite gemstones are pri... More
Rhodochrosite has a lovely natural pink to red color. Rhodochrosite gemstones are primarily translucent to opaque banded beads and cabochons. These bands are often in concentric or zigzag patterns of alternating white and pink (or red) colors. The transparent red forms large enough to be cut into gemstones are extremely valuable and cherished by rare gemstone connoisseurs. Hide
Rhodochrosite GEMSTONE PHOTOS
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Rhodochrosite IN THE ROUGH PHOTOS
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Rhodolite
Rhodolite describes a rose red form of Garnet that has a lighter tone and more purpli... More
Rhodolite describes a rose-red form of Garnet that has a lighter tone and more purplish color than typical Garnet gemstones. It is usually an intermediary variety between the Pyrope and Almandine series, usually containing more magnesium than iron in its chemical structure, thus leaning closer towards Pyrope. It is often regarded as a variety of Pyrope. Hide
Rhodolite GEMSTONE PHOTOS
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Rhodolite IN THE ROUGH PHOTOS
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