矿相学（Petrography）.doc

矿相学（Petrography） I. noun interpretation 1. reflectivity: the ratio of the reflected light intensity (Ir) to the incident light (Ii) of a vertical incident light reflected in a mineral phase microscope (R). 2. reflective color: the color of a mineral light under the direct illumination of a mineral phase microscope. 3.: double reflection is an optical phenomenon seen in single polarized light, when to change the orientation of mineral animal Taiwan, some minerals section can be observed brightness changes, namely double reflection minerals, if the transfer station animal observed mineral reflective color changes, namely the reflection pleochroism mineral. 4. heterogeneity: homogeneous minerals have no directional effects of vertical incident plane polarized light, reflection of incident plane polarized light still maintain the original polarization direction unchanged, so the polarizer extinction changes to display, animal does not occur brightness and color, the optical properties of minerals called heterogeneity. 5.: the heterogeneity of heterogeneous mineral has impact on the direction perpendicular to the incident plane polarized light, in addition to any other place outside the range of extinction to change the original vibration direction of incident plane polarized light, so after the polarizer display brightness and color of the animal and to change the Taiwan mineral orientation, changes in brightness and color, the the optical properties of minerals called heterogeneity. 6. internal reflection: white light at the surface of mineral except reflected light, a part of the light refraction into the inner mineral, when encountered inside the mineral dissociation, cracks, voids, inclusions and grain interface, different media interface, the light will be reflected or scattered, which is the reflection effect of minerals. 7. internal reflection color: the colour that occurs when mineral internal reflection occurs in dispersion, and is mineral color. 8. hardness: t