Jewelry Set - Summertime Green Colors !

A fresh cool look for Summer - Green !
.
.
This color of Summer stands out with a Wire Wrapped Green Onyx pendant surrounded with a cluster of Aventurine and Rose Quartz beads with White Carved Coral beads. Crystals, Aventurine and Rose Quartz beads add style and complete this 18 inch long necklace with a Toggle Clasp. Two pair of French Hook Earrings give differfent looks, one of two sizes of a simple White Coral, with a second set of dangle style of White Coral and crystals.
.

Green onyx (also called Onice Verde Onyx), is a type of quartz crystal with a very fine crystalline structure that is a translucent banded stone. It is a splended gemstones used to make jewelry. Green onyx has a color range from a very light lime-green color to a very light forest-green color. The green portion can be marbled with a dark red-orange coloration as onyx is found in a variety of different colors. Green onyx is a hard stone, due to his compact crystalline structure. On the hardness scale, onyx falls between 6.5 and 7; compared. Most of today's Green Onyx comes from Pakistan and Henan China, but at one time it was found in Indiana and Illinois.

.
Aventurine is a form of quartz (chalcedony to be more specific), characterised by its translucency and the presence of platy mineral inclusions that give a shimmering or glistening effect termed aventurescence. The most common colour of Aventurine is green, but it may also be orange, brown, yellow, blue, or gray. Chrome-bearing fuchsitte is the classic inclusion, and gives a silvery green or blue sheen. Oranges and browns are attributed to hematite or goethite. The majority of green and blue-green Aventurine originates in India. Creamy white, gray and orange material is found in Chile, Spain and Russia.

.
Corals are marine organisms typically living in compact colonies of many identical individual "polyps. The group includes the important reef builders that inhabit tropical oceans, which secret calcium carbonate to form a hard skeleton. Coral tissues become colorless as they reveal the white of their calcium carbonate skeletons, an event known as coral bleaching and most corals are found in the white form. Other colorations also exist depending on chemicals and algie in the water in which they grew. Corals are highly sensitive to environmental changes. Scientists have predicted that over 50% of the world's coral reefsmay be destroyed by 2030; and as a result most nations protect them through environmental laws, especially the black corals. To overcome the shortages for jewelry and other ornamental uses, coral farms are now being developed and used for non-ocenaic purposes.
.
Rose Quartz is a type of quartz which exhibits a pale pink to rose red hue. The color is usually considered as due to trace amounts of titanium, iron or manganese in the massive material found world wide. Some Rose Quartz contains microscopic rutile needles which produces an asterism in transmitted light. Recent X-ray diffraction studies suggest that the color is due to thin microscopic fibers of possibly dumrtierite within the quartz crystal.

Crystals were also used in his set.
.

Jewelry Set - Summertime Lavendar Colors !

In keeping with the delicate Summertime theme, lavendar is a perfect color.

.

SOLD

This lavendar colored presentation created by Gayle is highlighted by a marquise shaped Sugalite pendant with Freshwater Pearl clusters on either side and complimented with additional Pearls, Amethyst, Lepodolite and Fluorite beads. The necklace is then completed using a Silver S-hook Clasp. Matching dangle French Hook Earrings containing the same gemstone beads completes the set.

.

Sugalite (also spelled "sugilite") is a semi-precious stone that was discovered in 1944. It is named after Ken-ichi Sugi, a Japanese geologist who originally discovered the stone. Sugalite typically has a lavender or purple color--it can range from dark purple to pale lavender with hints of gray. Opacity varies significantly across sugilite grades. Matrixing and opaque blotches are common. Translucent specimens with little matrixing are far more valuable than opaque sugalite stones. Sugalite specimens are typically scored between 6 and 7.5 on the Mohs harness scale. The hardness of sugalite is comparable to that of quartz crystal, making it durable enough to use in gemstone jewelry such as pendants, bracelets and earrings. Occcurances of gem quality Sugalite can be found in Japan, Canada, South Africa, Italy, Australia and India.

.

Lepodolite (also spelled Lepidolite) is an uncommon mica and has only in the past decade become available on the mineral market in large quantities in gemstone quality. Lepidolite is an ore of lithium and forms in granitic masses that contain a substantial amount of lithium. The lithium content in lepidolite does vary greatly however and low lithium lepidolite is nearly useless as an ore of lithium. The typical violet to pink color of lepidolite is characteristic and is the only field test available to identify lepidolite from other micas. Pink muscovite or very pale lepidolite may confuse an identification. Lepidolite, like other micas, has a layered structure of lithium aluminum silicate sheets weakly bonded together by layers of potassium ions. These potassium ion layers produce the perfect cleavage. lepidolite crystals accompany such other lithium bearing minerals such as tourmaline, amblygonite and spodumene and can add greatly to the value of these specimens. A rock made of granular pink lepidolite and red to pink tourmaline is used as an ornamental stone for carving and in jewelry such as pendants and earrings. Single large plates or "books" of lepidolite can have appealling violet color and make attractive specimens. Notable occurrences include Brazil, Russia, Calafornia, Canada and Madagascar.

.

Fluorite (also called "fluorspar") is a halide mineral composed of calcium fluoride. It is an isometric mineral with a cubic habit, though octahedral and more complex isometric forms are not uncommon. Crystal twinning is common and adds complexity to the observed crystal habits thus making it great for jewelry. Fluorite comes in all colors of the rainbow, but purples and greens are most common. Fluorite is a widely occurring mineral which is found in large deposits in many areas. Notable deposits occur in China, Germany, Austria, England, Norway, Mexico, Canada, Kenya and many States in the United States. Fluorite has been the state mineral of Illinois since 1965. At that time, Illinois was the largest producer of fluorite in the United States, but the last fluorite mine in Illinois was closed in 1995.

.

Amethyst is the purple variety of quartz and is a popular gemstone. If it were not for its widespread availability, amethyst would be very expensive. The name "amethyst" comes from the Greek and means "not drunken." This was maybe due to a belief that amethyst would ward off the effects of alcohol, but most likely the Greeks were referring to the almost wine-like color of some stones that they may have encountered. Its color is unparalleled, and even other, more expensive purple gemstones are often compared to its color and beauty. Although it must always be purple to be amethyst, it can and does have a wide range of purple shades. Amethyst can occur as long prismatic crystals that have a six sided pyramid at either end or can form as druzes that are crystalline crusts that only show the pointed terminations. As a mineral specimen, amethyst is popular for its color and nice crystal shapes that produce a handsome, purple, sparkling cluster. However, amethyst is not the same everywhere. Different localities can produce a unique amethyst to that particular region or even to that particular mine. Experts can often identify the source mine that a particular amethyst came from. The key to this is the specimen's color, shape of crystal, inclusions, associations and character of formation.

.

Freshwater Pearls and Crystals are the other items in this jewelry piece.
.

Jewelry Set - for Summer !

The Big, the Bold, the Heavy jewelry that has been so popular these past few seasons needs to now be overcome by sparkle and light weight jewelry pieces for the hot Summer season.

. SOLD

In keeping with the colorful and light weight theme, Gayle has come up with a selection that joins together clusters of varying colors of Freshwater Pearls that are accented by sparkling crystal beads in a set that mates the necklace, earrings and bracelet into a colorful and lightweight Summer selection.

..

Pearls - Looking at the inside !

The first thing to point out is that there are several types of oysters and mollusks that are used to produce pearls, both salt-water and freshwater. I am not going to go into the different kinds of pearls in this discussion, just what the inside of all of them basically look like. Borrowing some photographs from the International School of Gemology (ISG) where gemology is taught based on actual specimens of gemstones: natural, synthetic and organic, rather than from pictures in books, we will take a look at the inside of a pearl For this discussion, the internal differences between a salt water Akoya cultured pearls and a Chinese freshwater cultured pearl will be looked at. At the end, a new surprising find will really make one wonder.

Above is seen a 5mm pearl purchased as an Akoya cultured pearl. Notice that it is uniformly round from the seed all the way out to the outer nacre layer, which is the thin line you see at the very edge of the pearl. What was quite remarkable about this pearl is that the center of the pearl is a hollow plastic looking bead, not the Mississippi mussel shell bead that was expected. You can see the circular structure of the Akoya cultured pearl with the bead and resulting layers being rather uniform from center to outer nacre layer.

Now above you see a freshwater cultured pearl from China . These are called non-nucleated pearls since they are started with a ball of tissue rather than a pre-formed bead. The picture is quite graphic to show that the center of this pearl is a somewhat organic looking mass of old tissue rather than a well formed starter bead as seen in the Akoya pearl. These pearls have been back lit to allow one to see the difference in formations, which is rather pronounced and graphically demonstrates the basic difference between the salt water Akoya and the freshwater pearl.

.

A question was asked that perhaps since the freshwater pearl was started by what is basically a ball of tissue, that should there not be some kind of hollow place in the center of a freshwater pearl as the tissue degenerates during the growth process? And sure enough, when the viewing angle is changed on the freshwater pearls, one can see hollow places in the pearl as seen in the pictures below of a half drilled 5mm freshwater pearl.

Thus these pictures show what would be seen if you dissect one of those expensive little jewels you have on that string of pearls you got as a gift.

.

Now for the surprise. How about opening up one of those very expensive Tahitian South Sea Pearls which are known for their excellent quality and thick nacre layer. But what’s really inside one of those Tahitian pearls? Well, one was cut open and to the surprise of everyone, what was found is almost beyond comprehension !

The center is a plastic bead. Apparently someone has found out how to use plastic instead of natural material to get the Pearl to form.

And taking it one step further, perhaps a reused piece of plastic for the starter bead. Why the multiple holes in the starter bead? Was the pearl farmer recycling plastic? Why place a used, multi-drilled plastic starter bead inside an oyster to make what could turn out to be a very expensive South Sea Tahitian Pearl in the first place?

.

But then again, it is this type of perplexing problems that is what makes gemology so much fun and of interesting experiences. A lifetime of learning and sharing the wonders of the earth.

.

Again thanks to the ISG for the use of pictures and information.

.