What is a crystal? Crystals are made up of elements which form amd there molecules form a certain pattern. For example, a volcano happens to erupts and magma flows out to the surface of the earth As the magma runs outward then slowly starts to cool. crystals may develop. This is call crystallization. From this occurring expensive crystal like rubies and diamonds are form, sometimes even emeralds. Crystals can have many different shape from the result of the type of molecules and atoms present in forming the crystals. Crystals can be put into thirty-two crystal classes then further put into a total of six systems.. Isometric System Crystals in the Isometric system, also referred as the cubic system, has the largest amount of symmetry when compared to the rest of the crystal systems. There is only one known figure in our geometric structure universe with the most perfect symmetry. That figure is known as the sphere. An indefinite amount of plane symmetry passes throughout its center point. Its number of axes is also indefinite. No matter how much you spin it on any of its endless amount of axes, the sphere will always appear to me the same. None of the crystal systems can compare to the symmetry that of a sphere, but there is one that comes relatively close. Crystals in the Isometric or Cubic system are quickly noticeable because many of its forms resemble that of a sphere, well at least its circularity, particularly when the faces of the crystal are curved or rounded because of the large amount of symmetry that appears in the Isometric system. Isometric Forms There are seven cubic forms or isometric forms. In these forms the three crystallographic axes are also the four fold rotation. In this system there are also four a... ... middle of paper ... ...et of symmetries. One might say that a crystal have a certain set of point symmetry elements but there are many symmetry elements such as center of symmetry, rotation axis’s, and mirror planes. The crystal class can be defined by its point symmetry, mathematically defined as point group. Before writing this paper, I wonder what a point group was and for that matter what was a group. After doing research I found that the word group branches off from a math theory called the Group Theory. The Group Theory is generally an algebraic structure. In a group there is a group of elements, these elements could consist of anything, but most of the time it consists of numbers. There is also an operation like subtraction, multiplication, addition or division; it could also be some weird operation. There for any elements from a set can be put together or combined by an operation.
In "Energy Story" uses an explanation of atoms and tells us the parts of an atom and its structure. In the text it
They show all of this to show how they were brought up and who founded them. They help to tell more about the periodic table and why they are set in the way they are on the periodic
Finally, it's very clear that the emergence of life is way more complicated than it seems and that's the reason why it's hard to visualize as a single event. Therefore, scientists are way far away from establishing a life in the laboratory because they were unable to find and provide evidence of exactly what caused life to emerge on earth 4.5 billion years ago. But, one thing that they can say confidently is that minerals, certainly played very complex and fundamental role in the origin of life. Another way this article relates to the material we have covered in class is by minerals because we did analyzed in chapter one that minerals are naturally occurring inorganic solid elements or compounds with a particular chemical composition or range of composition and a characteristic internal structure. Properties of minerals include silicate, halide, carbonate and
+ 360 + (3 348) + 463 = 5575. Pentan-1-ol has eleven C-H bonds, 4 C-C bonds, 1 C-O bond and one O-H bond therefore the calculation would be: (11 412) + (4 348)+ 360 + 463 = 6747. Hexan-1-ol has 13 C-H bonds, 5 C-C bonds, one C-O bond and one O-H bond therefore the calculation would be: (13 412) + 360 + (5 348) + 463 = 7919. Heptan-1-ol has 15 C-H bonds, 6 C-C bonds, one C-O bond and one O-H bond therefore the calculation would be: (15 412) + 360 +(6 348) + 463 = 9091. Octan-1-ol has 17 C-H bonds, 7 C-C bonds, one C-O bond and one O-H bond therefore the calculation would be: (17 412) + 360 + (7 348) + 463 = 10263.
Magma is a hot liquid made of melted minerals. Minerals can form crystals when they are cool. Igneous rock can form underground, where the magma cools. slowly. Or, igneous rock can form above ground, where the magma cools.
So, snowflakes are beautiful and interesting things. They're so unique. These crystals are magnificent. Also, now you know stores sell fake snowflakes, how snowflakes are created, and the requirement for snow. That's a lot isn't it. Go check outside, maybe it's snowing right
Rocks are a solid cohesive natural aggregate of one or more minerals. There are three types of rocks igneous, sedimentary, and metamorphic. Igneous rocks are formed through the cooling of magma. Sedimentary rocks are the result of accumulation of small pieces of broken off rocks. Metamorphic rocks change and form into a new rock. I have 10 different rocks that have been found in Oklahoma. Each of the rocks have details about how they are igneous, sedimentary, or metamorphic rocks.
Crystalline silica may be of several distinct types. Quartz, a form of silica and the most common mineral in the earth's crust, is associated with many types of rock. Other types of silica include cristobalite and tridymite.
Since no two snowflakes are alike, there are tons of difference between two. So, how exactly are snowflakes formed? Each snowflake has its own unique style when it comes to forming.
Regular Polyhedra is also known as Platonic Solids. There are only five platonic solids. Equilateral triangles [IMAGE]-Tetrahedron 3 faces at each vertex. -Octahedron 4 faces at each vertex. -Icosahedron 5 faces at each vertex.
Melting takes place when a solid gets enough energy to melt. When it gets enough energy it is called the melting point. An example of melting would be snow turning into water. The reverse of the melting process is called freezing. Liquid water freezes and becomes solid ice when the molecules lose a lot of energy. When a solid goes to a gas and skips the liquid, sublimation occurs. The best example of sublimation would be dry ice. Deposition is when a gas goes directly to a solid without going through the liquid phase. An example of deposition is when water vaper turns to tiny crystals.
Crystals have been used throughout history as adornments, for protection, divination or healing. The key to Crystals, by Sarah Bartlett discusses In 4000 B.C.E the ancient Sumerians believed that crystals were linked to planetary energy and that they reflected cosmic vibrations. Ancient Egyptians used crystals and gemstones for magical protection and to improve health. The color of the gems were particularly significant to the Egyptians. The red of jasper represented fire, life and blood; the green of malachite represented new growth and fertility. Some people have theorised that the Egyptian pyramids were once capped with crystals to channel cosmic forces down into geometric structures. (Bartlett 15). Crystals are formed under the crust of
Igneous rocks are formed from the ejection of earth’s volcanoes. Deep down inside earth’s mantle there lies hot magma. Magma is molten rock that is kept below the surface. This mixture is usually made up of four parts: a hot liquid substance which is called the melt; minerals that have been crystallized by the melt; solid rocks that have made themselves tangled in the melt because of loose materials, and finally gases that have become liquid. Magma is created by an increase in temperatures, pressure change, and a alter in composition. When this magma is ejected from earth’s crust it earns a new name called lava. The lava hardens and becomes an Igneous rock.
Solids are more stable than liquids and gases. One type of solid is a Crystalline solid. The particles in a crystalline solid have a regular repeating pattern. The types of crystalline solids are metals, alloys, salts, valence crystals, molecular crystals, polymers, and plastics.
Category of Gemstones - There is various different types of gemstones, and well-informed the different categories can help a collector or enthusiast expand his repertory vastly. Some precious gemstones are so special in chemical composition and transparent structure that they fall into their own category, although others can be collectively lumped into one. Here are the principal types of the precious and semi-precious gemstones: