Very wide distribution of crystals. Crystal Materials Co., Ltd. Shandong days Yue, solid crystalline material nature, the vast majority of crystals. Gases, liquids and amorphous substance under certain conditions can also be converted into a suitable crystal. 1. The long-range order: the internal arrangement of atoms in a crystal at least rule in the micron range. 2. Uniformity: macroscopic properties of the various parts of the crystal is the same. 3. Anisotropy: having different physical properties in different directions crystallographically. 4. Symmetry: The ideal crystal shape and internal structure of the crystals have a certain symmetry. 5. A self-limiting: crystal has spontaneously form a closed geometric polyhedron characteristics. 6. rational solution: to determine the orientation of the crystal with a crystal along certain crystal faces split nature. 7. The minimum internal energy: In forming crystals can be minimized. 8. conservation of crystal plane angle: the angle between the crystal planes belonging to the same kinds of crystals between two corresponding constant. Joints refers to the actual interface between the single crystal twinning mutual engagement. Twinning is bounded to joining Shandong days Yue, both sides are not mutually continuous single crystal lattice. Joints can be stepped or very irregular, also for a plane, and is equivalent to two single crystals in a public face each other. Joints often in parallel with a simple index single crystal in the crystal surface, then you can use the symbol of the crystal surface, said joining direction. However, individual twinning, the joints may also be unreasonable for an index faces. Joints with single crystal symmetry plane parallel Yue Crystal Materials Co., Ltd. Shandong days, but the fact is coincident with the twin planes more often, or parallel to the double-crystal axis. Twinning law refers to the double-crystal single crystal interconnected among law students. Twinning law is characterized by a double-crystal elements, and has often been given a specific name. Its nomenclature is as follows: a recurrent feature of the double-crystal mineral named after. Such as spinel group minerals to (111) twin plane, said spinel law; to the initial discovery of the double crystal place names, such as feldspar to C axis, namely (001) double crystal zone axis Carlsbad Law twin crystal axis; twin crystal shape named group minerals such as rutile to (101) for the twin planes geniculate twinning law (also known as the elbow-shaped double-crystal); and engaging with the twin plane face names, such as calcite crystal plane to (012) negative rhombohedron of twin planes and joints of twinning is called negative rhombohedral twinning law. Yue Crystal Materials Co., Ltd. Shandong days of semi-insulating _ Shandong days Yue (certified) _ Jinan, Shandong days Yue provided by Spark Technology Development Company Limited. Jinan Spark Technology Development Co., Ltd. (www.sicc.cc) is a leader in Jinan, chemical equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Shandong days Yue leadership with the staff warmly welcome all inquiries negotiations to create Shandong days Yue a better future.