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Click Here For Best Selection Of High Quality Polarizing Microscope

Click Here For Best Selection Of High Quality Polarizing Microscope

The chemical formula of the Jadeite is indicated by Na(Al, Fe)SiO6 or Sodium Aluminum Iron Silicate. Jadeite is a Silicate mineral. It is also a member of the Pyroxene Group of minerals. Mineral Jadeite derived its name from the Spanish word piedra de ijada or stone of the side. This is because it was once thought to cure kidney stones and other kidney ailments. This mineral Jadeite has many colors that can be very nice and attractive when viewed under petrographic polarizing light microscopes. Jadeite was first described in 1863 and the first specimen was discovered in Myanmar. Mineral Jadeite is known to crystallize in the monoclinic system. In optical mineralogy, the monoclinic system of crystal formation comprises crystals having three axes of unequal lengths. Two of which are usually found in a position that is oblique or not perpendicular to one another. However, both of which are commonly found perpendicular to the third axis.

 

Mineral Jadeite is commonly used as an ornamental stone for carvings. It can be also used as semi-precious and precious stone in jewelry because it has the capability to exhibit wonderful appearance and brilliance when evaluated under polarized microscope used in the field of optical mineralogy. Jadeite is actually one of the two minerals called Jade. The other Jade mineral called nephrite is a variety of actinolite that shows fascinating microscope appearance when viewed under petrographic polarizing light microscopes. Jade has been used for eons in Central America and China as ornamental stone as well as religious stone of deep significance.

 

Most crystals of mineral Jadeite are found translucent in appearance. The crystal habit of Jadeite usually include fine-grained fibrous that are majestically exhibited under optical mineralogy polarized microscopes. It can be also found massive or granular in form. Mineral Jadeite can be found having various wonderful colors that are very attractive when evaluated under petrographic polarizing light microscopes. It can be also found having grayish green color as well as white, pale blue gray or even pale purple, all of which are very interesting most especially when viewed with the aid of petrographic polarizing microscopes. The green colored Jadeite is the one that is most recognizable Jade crystal, which can exhibit wonderful appearance when evaluated under polarizing light microscopes. It can be also found having yellow or pink crystal colors. Jadeite is most commonly found exhibiting a vitreous luster when viewed in reflected light of polarizing microscope used in optical mineralogy. Mineral Jadeite is commonly found showing a good cleavage but it is rarely observed even when viewed under polarizing light microscope for mineralogists. It also exhibits a splintery to uneven fracture when viewed closely with the aid of the petrographic polarizing light microscope. The specific gravity measure of the mineral usually gives an approximate value ranging from 3.25 grams per cubic centimeters to 3.35 grams per cubic centimeters, which is considered above average for translucent minerals. The hardness measure of the mineral using the Mohs scale method is usually found 6.5. When Jadeite mineral specimen is rubbed on a white porcelain streak plate, it is commonly found leaving a white streak.

 

Mineral Jadeite is commonly found having biaxial positive figure when evaluated between crossed nicols of petrographic polarizing light microscopes. The refractive index of mineral Jadeite is most commonly found ranging from 1.654 to 1.693 when it is evaluated in plane light of polarizing light microscope used in optical mineralogy. Sometimes the mineral shows double refraction with anomalous aggregate reaction when viewed between crossed nicols of petrographic polarizing light microscopes. The maximum birefringence exhibited by Jadeite when it is viewed between crossed polars of polarized light microscope is usually ranging from 0.013 to 0.020. But this birefringence is usually not detectable. Mineral Jadeite is commonly found exhibiting a moderate surface relief when viewed under polarizing microscopes for geologists.

 

The best field indicators of mineral Jadeite usually include fibrosity, hardness, toughness, and its typical green color that is very interesting when viewed under petrographic polarizing light microscopes. Mineral Jadeite is commonly found associated with other interesting minerals such as quartz, calcite, vesuvianite, aragonite, serpentine, and nepheline. Some of the fine-grained Jadeite specimens are extremely tough and are actually found stronger than steel. There is no specific data found on the toxicity and health dangers for mineral Jadeite. However, the specimens of this species should be treated with great care and use of sensible precaution is advised upon handling them. Mineral Jadeite is a non-radioactive species. Mineral Jadeite is formed in metamorphic rocks under high pressure and relatively low temperature conditions. Jadeite can be found in strongly metamorphosed sodium-rich serpentinous rocks. Mineral Jadeite notably occurs at several localities including san Benito County, California, Tibet, Japan and Burma. The best gem quality Jadeite is actually from Myanmar or Burma.



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Tuesday, July 29th, 2008 at 7:30 am
Category:
The Silicates Mineral Class
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