![]() ![]() Tiger Eye was thought to be all seeing due to its appearance. ![]() Roman soldiers wore tiger's-eye for protection in battle. Tiger Eye is the anniversary gemstone for the 9th year of marriage. Red Tigers Eye, Blue Tigers Eye and Yellow Tigers Eye. More recently, a new theory of tiger's eye has been proposed that argues that it is not in fact pseudomorphic, but rather forms from crocidolite by a different mechanism, through a series of cracking and sealing episodes. The first theories about tiger's eye formation were developed in 1873 by the German mineralogist Wilbel in 1873. Tiger's eye was first discovered in South Africa in the early 1800's. Tiger eye with its bands resembles an eye of tiger, so it is received its name due to this similarity. Many are attracted to a magnet because they commonly include bands (i.e., zones), which are typically thin and discontinuous, of magnetite. A change in the incident light results in a reversal of the conditions, the dark bands becoming lustrous and the lustrous bands becoming dark. The beauty of the effect is enhanced by the fact that the fibers are not always perfectly straight they may be curved and often have a sharp bend or twist at a certain place. when turned towards the light often shows a series of lustrous bands alternating with bands of duller color which show little silky luster. If less iron is present the quartz will tend towards the blue color of the original crocidolite.Ĭhatoyant in a broad sense is ?A polished surface. Though the iron and sodium of the crocidolite dissolve, traces of the iron oxide remain and this creates the golden color typical of tiger's eye. But the quartz takes on the fibrous formations and this creates the parallel lines within the gem which gives it that shifting play of light. In the course of the process, the crocidolite is completely dissolved. This process can result in two different gemstones: a blue stone called hawk's eye or the golden brown stone called tiger's eye. The transformation begins when quartz becomes embedded between the fibers of crocidolite. The term comes from the Greek for "false form." Pseudomorphs form when one mineral replaces another. Tiger's eye is what is known in mineralogy as a pseudomorph. The crocidolite was gradually transformed into quartz while maintaining its fibrous formations. It began as the fibrous blue mineral called crocidolite, which is made up of iron and sodium. The gemstone known as tiger's eye is a form of chalcedony quartz. Check it out in the video below.Uses: Gemstone for jewelry, specimen collecting and healing property uses.ĬLICK HERE To Purchase Kidz Rocks Tigers Eye Products. A strong crew carefully hoisted the massive piece into position and added the top brackets to hold it in place. A special metal bracket, custom-designed to cradle the bottom edge, was screwed into the reinforced wall. Weighing 180 kg (400 lbs) and only 5 cm (2 inches) thick, any flexion would have caused it to break. This decorative gem material is commonly polished to make beads and large cabochons.Įxhibiting this amazing but fragile piece presented a challenge. Like the sheen seen in silk, light reflecting off the golden quartz fibers produces a chatoyancy known as tiger’s-eye. Iron oxides were also trapped by the quartz and imparted a golden color. As the fibers were crystallizing, they were encapsulated by quartz. After millions of years, the sediments crystallized to form layers of hematite, magnetite and jasper, seen here as red-orange, silver and green bands.Īt some point, tectonic activity buckled the rock, opening fractures that became infilled with the fibrous mineral crocidolite. The multicolored rock from the Pilbara region of Western Australia is extremely old – formed from iron-rich sediments deposited in ancient seas about two and a half billion years ago. ![]()
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