Тишакова Татьяна Станиславовна канд хим н., ассистент; Левашова Ольга Леонидовна канд фарм н., ассистент; Савельева Елена Валерьевна ассистент. В сборнике представлены тезисы
OPAL Thando Agape Dube, group 3. Scientific adviser is Evgenia Grabovetskaya
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- Бұл бет үшін навигация:
- BARITE
- RED QUARTZ
OPALThando Agape Dube, group 3. Scientific adviser is Evgenia GrabovetskayaOpal is one of the most fascinating and fabled of gemstones and the rich color in some variations gives the opal unsurpassed splendor and mystique. Opal, is a mineraloid because of being amorphous thus not truly a mineral. It lacks the scientific standard of having a crystal structure but is still categorized with true minerals. The origin of the name Opal is uncertain although it is speculate that it may be from the Sanskrit “upala” meaning stone or precious stone or from the ancient Latin name opalus for the gem. Although it is still regarded as a valid mineral species for historical reasons, Opal is not a true mineral. It is hydrated silicon dioxide (submicroscopic silica bonded together with water and additional silica and containing the minerals cristobalite and tridymite. It has no crystalline structure and no definite chemical composition. The gelatinus mixture, overtime, seeps deep into fractures, veins and between the layers of underground sedimentary rock and the solidified mineral is formed as the water evaporated. Opal is at times formed in masses exhibiting botryoidal growth, in stalagmitic form or becomes a replacement material in fossils. Even after solidifying, Opal maintains a water content ranging from 3% to 21% by weight but usually 6–10%. Opals of all varieties have been synthesized experimentally and commercially. The discovery of the ordered sphere structure of precious opal led to its synthesis by Pierre Gilson in 1974. The resulting material is distinguishable from natural opal by its regularity; under magnification, the patches of color are seen to be arranged in a "lizard skin" or "chicken wire" pattern. Furthermore, synthetic opals do not fluoresce under ultraviolet light. Synthetics are also generally lower in density and are often highly porous. Most so-called synthetics, however, are more correctly termed "imitation opal", as they contain substances not found in natural opal. The imitation opals seen in vintage jewelry are often foiled glass, glass-based "Slocum stone", or later plastic materials. Other research in macroporous structures have yielded highly ordered materials that have similar optical properties to opals and have been used in cosmetics. Opal has also been known to promote emotional and physical healing. It is beneficial for the health of eyes, hair, nails and skin and may be used in treatments to clarify and strengthen the eyesight and in disorders with the eyes. It is also believed to disperse infections, purify blood and kidneys and regulate insulin production; helps reduce fever, stimulates memory energetically stabilizes neurotransmitter disturbances such as Parkinson’s disease; and supportive in female hormone issues, PMS and menopause, and provides comfort and ease during childbirth.
Olofu Jennifer Ifeoma, group 3. Scientific adviser is Evgenia GrabovetskayaBarite is a mineral composed of barium sulphate (BaSO4). It receives its name from the Greek word ‘’barys’’ which means ‘’heavy’’. This name is in response to barite’s high specific gravity of 4.5, which is exceptional for non-metallic mineral. The high specific gravity of barite makes it suitable for a wide range of industrial, medical, and manufacturing uses. Barite also serves as the principal ore of barium. It often occurs as concentrations and void-filling crystals in sediments and sedimentary rocks. It is especially common as concretions and vein fillings in limestone and dolostone, where these carbonate rocks units have been heavily weathered, large accumulations of barite are sometimes found at the soil bed rock contact and many of the commercial barite mines produce from these residual deposits. Barite is also found as concretions in sand and sandstone. These concretions grow as barite crystallizes within the interstitial spaces between sand grains and sometimes crystals of barite grow into interesting shapes within the sand, these structures are known as barite roses. Occasionally, barite is so abundant in a sandstone that it serves as the ‘’cement’’ for the rock. It is also a common mineral in hydrothermal veins and is a gangue mineral associated with sulphide ore veins, found in association with ores of antimony, cobalt, copper, lead, manganese and silver and in few locations barite is deposited as a sinter at hot springs. Barite is generally easy to identify. It is one of just a few non-metallic minerals with a specific gravity of four or higher (4 or >). Combine that with its low Moh’s hardness (2.5) to (3.5) and its three (3) directions of right angle cleavage and the mineral can usually be reliably identified with just three (3) observations. Barite can be colourless, white, light blue, light yellow, light red and light green. It is a good mineral to use when teaching about specific gravity. It can easily be identified by students using the ‘’heft test’’ (determination of the heaviness). Barite is used in drilling mud (weighting agent), high density filter (weighting filter) for paper, rubber and plastics (weighting filler), and pigment in paints. It is also used for making a wide variety of barium compounds since it is the primary ore of barium. It is also used in hospitals for diagnostic medical test, x-ray emissions, power plants and laboratories. Oil and gas industries are the primary users of barite world-wide. RED QUARTZObed Kelvin Edozie, group 3. Scientific adviser is Evgenia GrabovetskayaHematite Crystals (red quartz) have an excellent grounding and balancing energy as well as being a powerful aid to stimulate the mind. They enhance memory and evoke deep thought. They have a highly protective energy and are good to help women who lack courage. If you desire to stimulate your mind for higher learning, they are most helpful, especially in the field of mathematics and technical studies. They will assist the development of logical thought processes, and help you to reach the highest capacity possible. They will heighten self confidence, will power and self-esteem. The energy of these stones have a strong physical grounding energy, that vibrates strongly at the base or root chakra. Hematite crystals will help to relieve any spaciness you may feel especially if you have been working with high vibration crystals. Using these grounding crystals will help to settle you and totally ground your energy to earth, as they help you to make a stronger connection to the earth. By taking any excess energy down via the base chakra to the earth chakra... and to Mother Gaia, this will help to prevent any health problems that can develop. This stone is highly protective, and is useful to protect and seal your aura field to prevent intrusion from unwanted entities while undertaking spiritual journeying. If you have been using high vibration stones, especially stones that stimulate the third eye and crown chakra, Hematite crystals will ground you spiritually on your return. These crystals can be beneficial to stabilize your energy field, to allow you to keep your connection both with Mother Gaia and with spirit. The energy of this crystal will help to balance your aura and align your chakras, as it brings together the energy of the mind, body and spirit. Sometimes when you work with high crystal energy stones you can become dreamy or spacy and lose yourself to the high vibration energy, instead of integrating it throughout your entire chakric system. Hematite Crystals can be very helpful to assist you to embody the high vibration energy while at the same time aiding you to let go of any excess of energy. жүктеу/скачать 1.64 Mb. Достарыңызбен бөлісу:
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