Тишакова Татьяна Станиславовна канд хим н., ассистент; Левашова Ольга Леонидовна канд фарм н., ассистент; Савельева Елена Валерьевна ассистент. В сборнике представлены тезисы
RED JASPER M. Waleed Jabbar, group 20. Scientific adviser is Svetlana Kozub
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- Бұл бет үшін навигация:
- ORANGE CALCITE
- WULFENITE
RED JASPERM. Waleed Jabbar, group 20. Scientific adviser is Svetlana KozubIntroduction: Its hard, reddish brown semiprecious stone. Its an opaquemicrocrystaline variety of Quartz. It’s name is derived from Greek word meaning spotted stone. The name means "spotted or speckled stone", and is derived via Old French jaspre (variant of Anglo-Norman jaspe) and Latin iaspidem (nom. iaspis)) from Greek ἴασπις iaspis, (feminine noun) from a Semitic language. Green jasper was used to make bow drills in Mehrgarh between 4th and 5th millennium BC. Jasper is known to have been a favorite gem in the ancient world; its name can be traced back in Arabic, Persian, Hebrew, Assyrian, Greek and Latin. On Minoan Crete, jasper was carved to produce seals circa 1800 BC, as evidenced by archaeological recoveries at the palace of Knossos. Although the term jasper is now restricted to opaque quartz, the ancient iaspis was a stone of considerable translucency including nephrite. The jasper of antiquity was in many cases distinctly green, for it is often compared to the emerald and other green objects. Jasper is referred to in the Niebelungenlied as being clear and green. Probably the jasper of the ancients included stones which would now be classed as chalcedony, and the emerald-like jasper may have been akin to the modern chrysoprase. The Hebrew word yushphah may have designated a green jasper. Flinders Petrie suggested that the odem, the first stone on the High Priest's breastplate, was a red jasper, whilst tarshish, the tenth stone, may have been a yellow jasper. Chemical composition: It contains silicon dioxide with iron (III) inclusions and other impurities. The iron (III) inclusions give its bright red colour. Crystal shape: Its crystal system is hexagonal. Complex reaction: It reacts and dissolves in hydrofluoric acid. Occurance: It occurs in nodules or as filling in fissures of sedimentary andvolcanic rocks. It’s found all over the world Uses: its used as an ornamental object ORANGE CALCITEJacqueline Ajiboye, group 20. Scientific adviser is Svetlana KozubA mineral is a naturally occurring substance that is solid and inorganic representable by a chemical formula, usually abiogenic, and has an ordered atomic structure. It is different from a rock, which can be an aggregate of minerals or non-minerals and does not have a specific chemical composition. The exact definition of a mineral is under debate, especially with respect to the requirement a valid species be abiogenic, and to a lesser extent with regard to it having an ordered atomic structure. The study of minerals is called mineralogy. History of calcite (CaCO3) Calcite is one of the most common minerals on earth. In fact, calcareous rocks cover 40% of the earth’s surface (as calcite in the form of limestone) and are the principal component of 4% of the earth’s crust and covers. Calcite is also one of the most widely distributed minerals. It is the principal component of chalk, marble, limestone and stalactites and stalagmites. Calcite is a calcium carbonate, which has been crystallized in hexagonal form. The name calcite comes from the Latin word calx, meaning ‘lime’. Calcite is extremely soft – it rates as only a 3 on the hardness scale. Therefore it is not seen much in jewelry, though it is faceted for collectors, usually given step cuts. extremely variable but generally white or colorless or with light shades of yellow, orange, blue, pink, red, brown, green, black and gray. “The Enhancement Stone”: ORANGE CALCITE. This is a great stone for anyone trying to remove unwantedcreative blocks. Orange Calcite, like every calcite, is a powerful healing stone and contains the element of fire. It possesses very gentle, cleansing and revitalizing energy to open and remove energy blockages within the body. It is highly energizing to one’s health and life force energies. Helps to balance sexual energies. Orange Calcite is great for healing one mentally, as it balances the emotions, heals past life trauma, removes fear and helps one to overcome DEPRESSION. It has the ability to dissolve problems that are blocking one from reaching their true potential. Metaphysical Properties: Awakens one’s energies of creativity and sexuality, Helps in integrating new ideas, Helps one expand their business, Very effective against laziness, Amplifies and increases energy, Calms the mind and increases intuition, Increases psychic abilities, Place under pillow to prevent nightmares, Aligns one’s thoughts with one’s will, Removes stagnant energy, Assist in taking action towards one’s goals, Healing Properties: Heals Reproductive System, Alleviates Gallbladder Problems, Reduces Mucous, Reduces Fatigue, Aids Calcium Intake and Assimilation, Restores Mental and Emotional Equilibrium, Useful For Intestinal Disorder.
Jude Otu, group 20. Scientific adviser is Svetlana KozubIt is a molybdate mineral with the formula PbMoO4. It can be most often found as thin tabular crystals with a bright orange-red to yellow-orange color, sometimes brown, although the color can be highly variable. In its yellow form it is sometimes called "yellow lead ore". It crystallizes in the tetragonal system, often occurring as stubby, pyramidal or tabular crystals. It also occurs as earthy, granular masses. It is found in many localities, associated with lead ores as a secondary mineral associated with the oxidized zone of lead deposits. It is also a secondary ore of molybdenum, and is sought by collectors. It has a tetragonal system and its hardness varies from 2 to 3. Wulfenite was first discovered in 1845 by a man named Franz Xavier Wulfen. It was later named in honour of him by a fellow scientist Wilhelm Karl. Wulfenite has many forms and colours. It is commonly found as thin tabular crystals, either as bright orange-red to dull yellow green. It can be used as a minor ore for molybdenum which can be further used as a metal hardener or batteries, paint and other modern components.
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