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Chrome Diopside, The Obvious Green

Chrome Diopsite

Chrome Diopside

Looking for a fine green gemstone with rich color and excellent clarity? Diopside is a monoclinic pyroxene mineral. The name Diopside is derived from the Greek word ‘di’ meaning two, and ‘opsis’, meaning vision.

Chrome Diopside’s popularity rose in 1988 when material surfaced in Europe. Dealers raved about its green color that resembled that of Tsavorite and Chrome Tourmaline at a fraction of the cost. Since then, Chrome Diopside has been granted class one export status among Russia’s mineral resources, a ranking that includes Diamond, Emerald, and Alexandrite.

The important diopside find in Russia is in eastern Siberia, close to the famous diamond mines. This diopside is colored by chromium, the same element that gives the color to ruby, emerald and alexandrite. The color was spectacular; chrome diopside literally glows with green.

However, there are a few limitations to this gem. First, chrome diopside can actually suffer from too much green. In larger sizes the tone can be very dark. Careful cutting is required in the larger sizes to keep the angles slightly shallow to improve brilliance. But in smaller sizes (under 2 carats) the color is exceptionally vivid and fresh.

The main factor to consider when purchasing Chrome Diopside is the color, with medium dark green stones being at the pinnacle of the value spectrum. The quality of the cut will also significantly enhance the value considerably by adding brilliance and scintillation. Specimens over 2 carats displaying a rich green color are incredibly rare and will naturally demand high premiums.

Diopside is believed to be a creative stone, increasing creative visualization and helping to manifest desired goals. It has also been said that it can improve the wearer’s intellect, particularly with regards to mathematical and analytical abilities. In addition to this, Diopside is believed to alleviate aggression and stubbornness, and is said to be related to love, commitment, and the inner heart.

Physically, Diopside is believed to heal the heart, lungs, and the circulatory system. It is also believed to aid with psychological disorders and weaknesses.

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Clinohumite, A Very Rare Gemstone

Clinohumite

Clinohumite

Clinohumite is a very rare gemstone, named after its monoclinic crystal structure and its relation to humite which was named after Sir Abraham Hume (1749-1838), English collector of gemstones, minerals, and pieces of arts.

The color of Clinohumite can be brown, yellow or white. This gem has a hardness of 6 on the Mohs scale. Clinohumite is considered to be a semi-precious gemstone. Very limited in nature and mined in only two spots on earth, which is the Pamir Mountains of Russia and Tanzania. Clinohumite is among the 10 rarest gemstones on earth, with only a few thousand carats known to exist in private collections. While extremely rare, some 1-2 carat stones are available.

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Cat’s Eye Apatite

Cat's Eye Apatite

Cat’s Eye Apatite

Apatite is one of a few minerals that are produced and used by biological micro-environmental systems.

The word Apatite is derived from the Greek word “apate’, meaning to deceive. This was primarily due to the fact that Apatite was often mistaken for rarer, more valuable gemstones such as Beryl, Olivine and Peridot. Apatite falls into two categories, Chlor-Apetite (Chloro-Calcium), and Flour-Apetite (Flouro—Calcium). The name Cat’s eye is derived from the phenomena displayed by this stone known as chatoyancy.

The range of colors on Cat’s eye apatite includes colorless, pink, yellow, green, blue and violet. A rare variety is a rich purple from Maine. Blue Brazilian stones are second in demand. A light green variety of apatite carries the trade name “asparagus stone”. The recent availability of the neon blue-green variety from Madagascar has increased the use of apatite in jewelry.

Chatoyancy, the cat’s eye effect, is a reflection of light by parallel fibers, needles, or channels, which resembles the slit eye of a cat. When the stone is rotated, the cat’s eye glides over the surface.

Cat’s eye apatite is a rarity at apatite mines. Apatites are found in Brazil, India, Kenya, Madagascar, Mexico, Myanmar (Burma), Norway, Sri Lanka, South Africa and the United States, and it is generally untreated.

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Cassiterite Gemstone

Cassiterite

Cassiterite is the most important ore that occurs from tin and is marked with high durability. The name of this mineral is derived from the word “Cassiterides” which was used to describe British islands during the pre-Roman times. Their most prevalent usage is in the form of gemstones. The name Cassiterite was derived from a Greek word “kassiteros” which stands for tin. It is also popularly known as ‘tinstones’.

Cassiterite occurs in pegmatites and can be washed into alluvial deposits. Localities include the Malay Peninsula, England, Germany, Australia, Bolivia, Mexico and Namibia.

Cassiterite is a rare natural gemstone. The color of Cassiterite can be black, brownish black, brown, gray, yellowish, greenish, red or colorless. Cassiterite has a hardness of 6 to 7 on the Mohs scales. Cassiterite has much more dispersive fire than even diamond. Cassiterite is one of the rarest gemstones.

Cassiterite is primarily concentrated in alluvial surfaces. They are mainly available in the tin mines located in Bolivia where they exist in hydrothermal veins. This type of ore is available in small elements that are derived from igneous rocks. The different aspects of this ore are elaborately arranged and exhibit tremendous amount of luster. Associated minerals with which cassiterite ores are generally found are Tourmalines, Molybdenite, Bismuthinite, Topaz, Fluorite, and Wolframite.

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Calcite Powerfull Stone

Calcite Gemstone

Calcite

Calcite is a carbonate mineral and the most stable polymorph of calcium carbonate. The other polymorphs are the minerals aragonite and vaterite. Aragonite will change to calcite at 470 °C, and vaterite is even less stable.

Calcite is mostly found in sedimentary rock. Calcite turns into the rock called limestone. Some limestone is made when sea creatures die and their skeletons and shells fall to the bottom of the ocean.

Calcite is mined using quarrying or underground mining. Calcite/limestone is used for making glass, paper, photography, statues, building, and animal food. The Ancient Egyptian Sphinx [below] is made of limestone. Calcite is one of the most important carbonate minerals. It is often referred to as a industrial mineral, and is found in over 300 forms.

Calcite may be any color, from colorless to black, depending upon the other minerals contained in it. Almost all of the ancient alabaster artifacts of ancient Egypt were not really alabaster. The artifacts were actually made of calcite. Calcite has striking beauty and offers much variety in color and form. The name calcite is derived from the Greek word “chalx” which means lime. Calcium carbonate is lime stone and calcite is a beautiful variation that naturally exists in a variety of colors and forms.

Calcite has a special characteristic known as bi-refringent. Anything that you see by looking through a bi-refringent gemstone will appear doubled. The calcite crystal has a light-splitting ability and creates what appears as image duplication. This property is important to gemologists. Calcite is used in an instrument called the calcite dichroscope. This instrument is used to see different colors as they are transmitted through a gemstone.

Gem therapists claim a person who wears golden/yellow calcite will experience wisdom and mental harmony. Red calcite is an energy booster. Orange calcite enhances energy for new beginnings in life. Green calcite provides joy and emotional balance. Blue calcite brings those in authority into righteous power.

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Axinite Gemstone

Axinite

Axinite is a group of brown to violet-brown or reddish brown minerals that sometimes occur in gem quality. Axinite is distinctive for its strong vitreous luster when polished, and its interesting pyro- and piezo-electric properties. Axinite is also popular with mineral collectors due to its unusual crystal structure.

Axinite is a gemstone which gets its name from the term ‘acine’ which in Greek, means axe. Axinite was discovered by R.J.Hauy in 1797. The crystals are wedge or axe shaped. This gemstone is not a birthstone but sometimes one mistakes Axinite for Quartz.

Axinite is considered to be a semi-precious gemstone and while limited in nature, gems of good color and size are available, however, faceted stones above 1 carat are rare. Despite being a bit brittle, Axinite’s brilliance and sumptuous colors ranging from a rich clove color to a vivid blue, make it a exquisite and unique gemstone that is keenly sought after by collectors and connoisseurs alike. Currently, the most in demand colors of Axinite are the earth toned browns.

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Apatite Gemstone

Apatite

Apatite is a naturally occurring gemstone. It is basically known for its asparagus green color but it is found in wide range of colors, from colorless to pink, yellow, blue to violet. The best apatite is neon greenish blue with a clean clarity. The cost of the stone increases with the intensity of the color.

Apatite is a member of the Apatite group, a group of isomorphous hexagonal minerals. Apatite may be regarded as a single mineral, but is usually divided into three more minerals: Fluorapatite, Chlorapatite, and Hydroxylapatite. Since it is hard to distinguish between these minerals, and since they may partially replace each other, a distinction between them is rarely made, and they are simply called “Apatite”. However, most Apatite is Fluorapatite, the most common member by far.

The name, ‘apatite’ has been taken from a Greek word ‘apate,’ which mean to deceive. It is so named because one can be easily get confused with variety of other stones like tourmaline, peridot and beryl.

Apatite is found in all igneous, sedimentary and metamorphic rocks. It can also be cut as gems but the softness of apatite prevents its acceptance as a gemstone.

Apatite is a common mineral, and fine localities are worldwide. Enormous deposits are in the Kola Peninsula, Russia, containing both crystals and botryoidal material. Some of the finest crystals came from Ehrenfriedersdorf, Saxony Germany, where they are blue to purple in color. Colorless, hexagonal crystals were found in the Tyrol, Austria, and excellent material from Panasqueira, Portugal. Deep blue crystals are found in Campo Formosa, Bahia, Brazil, and in Sri Lanka. Enormous deposits mined for industrial use exist in Nauru, Morocco, Algeria, Tunisia, Egypt, and Israel.

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Andesit Labradorite

Andsine Labradorite

Andesine Labradorite

The labradorite gemstone gets its name from the region Labrador in Canada where this gem stone is found in plenty. Even before the year 1000, the natives of Maine used this gem for decoration. However, it was only in the 1770’s that the labrafdorite got its name, when it was found by Moravian Missionaries in Labrador.

Labradorite occurs in large crystal masses in anorthosite rock and shows an iridescence or play of colors, like the wings of tropical butterflies. Iridescence is an optical phenomenon and is a characteristic property of surfaces in which the hue changes according to the angle from which the surface is viewed (as may be seen in butterfly wings).

Labradorite is a dark gray colour mineral. In most cases, it displays only one or two iridescent colors and these are mostly blue and green. This gives out an amazing rich greenish blue color. The labradorite variety that shows more that two spectral colors is called Spectrolite. This variety displays a wide variety of amazing spectral colors like yellow, orange and red as well as blue and green. These color change depends upon the viewing angle.

Andesine labradorite is a unique kind of gemstone, renowned for its beauty and form. Andesine labradorite, also called andesine or andesine feldspar, is a type of feldspar. It exists in a variety of colors, including yellow, green, organge and red, often with different inclusions that create a unique shimmering effect. Andesine labradorite belongs to the plagioclase feldspar series of minerals and occurs in Norway, Greenland and the Andes, which is the name taken from.

Red andesine labradorite shows increased absorption across the visible spectrum of light (from red to violet). Red andesine labradorite reportedly shows an “Alexandrite effect”: when a gemstone can show a distinctive color change when viewed under different sources of light.

Red andesine labradorite is primarily used in the jewelry industry. Stones of various sizes and shapes are carved and set in rings, pendants, earrings, bracelets, watches, broaches and the like. Red andesine is valued in the ceramic industry and is important in the manufacture of tiles, stones and bricks for landscape gardens, floors and swimming pools. The gemstone is also used in artwork, including on decorative boxes and engraving.

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Andalusite

Andalusite Gemstone

Andalusite

Andalusite is named after Andalusia, the province of Spain where it was first discovered. While it is a strikingly beautiful gem, it is largely unknown by the gem buying public. With a hardness of 7.5 on the Mohs scale, it is very suitable for all kinds of jewelry. Andalusite is used widely in making jewelry and objets d’arts, on account of its hard texture and durability. It is often regarded as a poor cousin to the extremely valuable though rare Alexanderite gemstone, since it mimics the stone in color play, showing a range of earth tones. It is a very popular gem in jewelry, especially for men. One of the other reasons andalusite has been referred to as “poor man’s alexandrite” is the fact that it is reasonably priced—anywhere from $40 to $200 per carat, which is far less than natural alexandrite.

The colors of andalusite cover the range of yellow-green, green, brownish red and reddish brown. Depending on the cut each gemstone carries two colors that also differ in intensity, or blend into a mosaic.

The attraction of andalusite comes from its play of colors if one changes the viewing angle. A similar effect is gained when the light comes from different directions. Andalusite is a naturally occurring gemstone, meaning it does not require any enhancements, such as heat, to help achieve its beauty.

Spain is no longer the primary source for andalusite. In today’s era, Sri Lanka and Brazil provide a large portion of andalusite gemstones. In addition to Spain, Sri Lanka, and Brazil, andalusite has also been found in the United States, Canada, Australia, and Russia.

Chiastolite, also known as star andalusite, contains inclusions of carbon that is arranged in the formation of a cross. In many countries, these have been used as amulets because of the symbolism of the cross. Star andalusite is thought to be a protective gemstone against “evil eye” curses. Metaphysically speaking, some people believe andalusite broadens the intellect and provides mental clarity to better solve problems.

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Types Of Agate

Types Of Agate

Agate is a beautiful mineral that occurs in an amazing variety of colors, shapes and patterns. Agate is a unique stone that is part of the quartz family.

It is important to note that there are many types of Agate, in fact Agate types are created each year. They are mainly coined new terms for marketing purposes and can consist of the following names: Blue Lace Agate, Eye Agate, Irish Agate, Rainbow Agate and Snake Skin Agate, among many others.

Fortification Agate

This is the most common and distinctive type of agate. In these agates, bands crystallized into concentric layers that more or less follow the shape of the cavity. The banding resembles an aerial view of a fort.

Water-Line Agate (also called water-level or onyx)

During its formation, silica-rich solution either entered the cavity slowly laying one band at a time, excess water drained out leaving a small amount of silica to settle out into separate bands, or the vesicle filled under low pressure. In any case, the silica crystallization in water-level agates is controlled by gravity in one orientation, forming a stack up of parallel bands.

Shadow Agate

Some agates exhibit a shadow effect in which there is what appears to be movement across the agate layers when the specimen is rocked back and forth (or your orientation to the specimen moves). This optical effect only occurs when there are alternating translucent and opaque bands. It is caused when light goes into the agate, but is not reflected out.

Tube Agate

Tube Agate During the formation of some agates, parallel projections of tiny hair-thin mineral rods grow first within the silica gel, around which later the chalcedony agate micro-crystals form. In some cases the inclusions remain, but sometimes they weather away leaving hollow tubes that subsequently fill in with silica.

Eye Agates

This mysterious agate characteristic is believed to be formed when most of the silica gel drains from the cavity, leaving only a droplet that “beads up” on the inside wall of the cavity. This droplet crystallizes into solid chalcedony “eyes”. In some cases, crystal growth will continue from this droplet in a manner similar to the formation of stalactites in caves. Later, the pocket fills in with the usual deposition of chalcedony microcrystals.

Plume Agate

These agates initially had formations on their outside layer that formed prior to the deposition of chalcedony bands. They are filament growths of mineral inclusions that resemble ferns or feathers.

Geode Agate

Geode Agate In some cases the supply of silica-rich water runs out before the entire cavity fills in. When there is a hollow center within a crystalline outer fill, the specimen is considered a geode. Not all geodes have agate banding, but many do. Also, the inner layers can form into several different types of silica mineral crystals and may even have other types of mineral crystals.

Moss Agate

Moss Agate Moss agates have clusters of mineral inclusions that resemble plants, trees, or landscapes. Most moss agate inclusions are comprised of iron or manganese oxide. In some cases, the inclusions inhibit chalcedony banding allowing the mineral clusters free reign to grow within the silica gel.

Seam Agate

Seam agates for in cracks within host rock, rather than in rounder pockets. The bands form in parallel rows that follow and fill in the crack or seam.

These types of Agate are usually create into beautiful stones that are then placed on rings, as charms, bracelets, necklaces, brooches, dream catchers etc. Agate is very strong, resists acid and is an excellent stone to work with when it comes to jewelry. Agate is also used in beautiful mosaics and picture frames.