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HyalineQuartz
 
CitrineQuartz
 
RutilatedQuartz
         
Hyaline Quartz   Citrine Quartz   Rutilated Quartz
         
Quartz is the second most abundant mineral in the Earth's continental crust, after feldspar. It is made up of a continuous framework of SiO4 silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall formula SiO2. There are many different varieties of quartz, several of which are semi-precious gemstones. Especially in Europe and the Middle East, varieties of quartz have been since antiquity the most commonly used minerals in the making of jewelry and hardstone carvings.   Citrine is a variety of quartz whose color ranges from a pale yellow to brown. Natural citrines are rare; most commercial citrines are heat-treated amethysts or smoky quartzes. It is nearly impossible to tell cut citrine from yellow topaz visually, but they differ in hardness. Citrine has ferric impurities, and is rarely found naturally. Brazil is the leading producer of citrine, with much of its production coming from the state of Rio Grande do Sul. The name is derived from Latin citrina which means "yellow" and is also the origin of the word "citron."   Rutilated quartz is one of the many types of quartz that make up 12% of the earth's crust yet the rarest to find. It is found in Kazakhstan, Australia, Brazil, Norway, Madagascar and the US (mostly in areas around mountain ranges) and has many benefits to mankind. The mineral often forms needle-like crystal inclusions in an "imbedded goldish" structure. Rutile needles can be reddish, golden, greenish, silvery or gray.
         
GirasolQuartz
 
Amethist
 
Malachite
         
Girasol Quartz   Amethyst   Malachite
         
Girasol Quartz is a variety of quartz that has a milky sheen almost opalescence to it which is caused by Aluminum content in Clear Quartz. It has also been called Moon Quartz, Pearl Quartz, and Blue Opal Quartz for its milky color. Its name is derived from the Latin gyrare, "to turn" and sol for "sun". Girasol is also known as Blue Opal Quartz, Moon Opal, Moon Quartz or Foggy Quartz. It is actually Rock Crystal clouded by water. It is a stone of gentle but powerful energy.   Amethyst is a popular form of quartz that ranges from a bright to dark or dull purple color. The world's largest deposits of amethysts can be found in Brazil, Mexico, Uruguay, Russia, France, Namibia and Morocco. Sometimes amethyst and citrine are found growing in the same crystal. It is then referred to as ametrine. An amethyst is formed when there is iron in the area where it was formed.   Widespread carbonate mineral of copper, a hydrous copper carbonate, CuCO(OH). Because of its distinctive, bright green colour and its presence in the weathered zone of nearly all copper deposits, Malachite serves as a prospecting guide.
It is found in Siberia, France, Namibia, and Arizona. Malachite has been used as an ornamental stone and as a gemstone.
         
fluorite.
 
Lapis-lazuli.
 
Tigers_eye
         
Fluorite   Lapis lazuli   Tiger's eye
         
Fluorite (also called fluorspar) is a halide mineral composed of calcium fluoride, CaF2. It is an isometric mineral with a cubic habit, though octahedral and more complex isometric forms are not uncommon. Fluorite is a colorful mineral, both in visible and ultraviolet light, and the stone has ornamental and lapidary uses. Industrially, fluorite is used as a flux for smelting, and in the production of certain glasses and enamels.   Lapis lazuli (/ˈlæpɪs ˈlæzjʉlaɪ/ or /ˈlæzjʉli/ lap-iss laz-zew-lie/lee) (sometimes abbreviated to lapis) is a deep blue semi-precious stone that has been prized since antiquity for its intense color. Lapis lazuli was being mined in the Sar-i Sang mines and in other mines in the Badakhshan province in northeast Afghanistan as early as the 7th millennium BC, Lapis beads have been found at neolithic burials in Mehrgarh, the Caucasus, and even as far from Afghanistan as Mauritania. It was used for the eyebrows on the funeral mask of King Tutankhamun (1341–1323 BC).   Tiger's eye (also called Tigers eye or Tiger eye) is a chatoyant gemstone that is usually a metamorphic rock that is a golden to red-brown color, with a silky luster. A member of the quartz group, it is a classic example of pseudomorphous replacement by silica of fibrous crocidolite (blue asbestos). An incompletely silicified blue variant is called Hawk's eye.
         
Hawk_eye
 
Pyrite.
 
Pearl.
         
Hawk's-eye   Pyrite   Pearl
         
Hawk's-eye consists of closely packed parallel crocidolite fibers that have been permeated and/or partially replaced by virtually colorless microcrystalline quartz.  Crocidolite is the name applied widely to asbestiform (i.e., fibrous) riebeckite, which is an amphibole. Color: diverse blue hues, commonly grayish, less commonly greenish, typically striped   The mineral pyrite, or iron pyrite, also known as fool's gold, is an iron sulfide with the formula FeS2. This mineral's metallic luster and pale brass-yellow hue give it a superficial resemblance to gold, hence the well-known nickname of fool's gold. The color has also led to the nicknames brass, brazzle, and Brazil, primarily used to refer to pyrite found in coal.   A pearl is a hard object produced within the soft tissue (specifically the mantle) of a living shelled mollusc. Just like the shell of a clam, a pearl is made up of calcium carbonate in minute crystalline form, which has been deposited in concentric layers. The ideal pearl is perfectly round and smooth, but many other shapes of pearls (baroque pearls) occur.
         
Pink Agate
 
Blue Agate
 
Red Coral
         
Pink Agate   Blue Agate   Red Coral
         

Agate is a banded form of finely-grained, microcrystalline Quartz. The lovely color patterns and banding make this translucent gemstone very unique. Agates can have many distinctive styles and patterns, but each Agate is unique in its own habit, with no two Agates being the same.

  Agate is a banded form of finely-grained, microcrystalline Quartz. The lovely color patterns and banding make this translucent gemstone very unique. Agates can have many distinctive styles and patterns, but each Agate is unique in its own habit, with no two Agates being the same.   Precious coral or red coral is the common name given to Corallium rubrum and several related species of marine coral. The distinguishing characteristic of precious corals is their durable and intensely colored red or pink skeleton, which is used for making jewelry.
         
     
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