PROBLEM SET 5----PHYSICAL PROPERTIES |
Match the specific physical property with the description. Choose the best answer. |
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______1 chatoyancy | a. closely spaced fractures can cause a changing or play of colors as mineral is rotated |
______2.thermoluminescence | b. needlelike crystals |
______3.ductile | c. inability of a mineral to break in a consistent fashion |
______4.iridescence | d. small spherical grains of mineral |
______5.black calcite caused by MnO2 dispersions |
e. mineral inclusions |
______6.tenacity | f. silky or wavy appearance on the surface of minerals |
______7.fracture | g. emission of light when bombarded with x-rays or UV light |
______8.acicular | h. color caused by presence of small concentrations of element (s) |
______9.specific gravity | i. emission of light when mineral is heated below "red hot ' temperature |
_____10.chromophores | j. kidney shaped mineral masses |
_____11.cleavage | k. a smooth curved breakage |
_____12.oolitic | l. a mineral can be drawn into wire |
_____13.fluorescence | m. ability of a mineral to break in a consistent way . |
_____14.reniform | n. related to the kinds of atoms comprising the mineral |
_____15.concoidal | o. cohesiveness of a mineral |
Match the physical property with an example of one or more minerals |
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_____1. chatoyancy | a. quartz and diamonds |
_____2. fluorescence | b. labradorite or opal |
_____3. ductile | c. apatite |
_____4. iridescence | d. quartz and tourmaline |
_____5. asterism | e. Fe, Mn, Ni, Cu |
_____6. vitreous | f. emerald |
_____7. 2 directions of cleavage |
g. rubies and sapphires |
_____8. piezoelectricity | h. hematite |
_____9. 5 on hardness scale | i. malachite |
____10. chromophores | j. satin spar gypsum and tiger's eye quartz |
____11. Cr+3 chromophore causing a green color |
k. amethyst |
____12. oolitic | l. cordierite |
____13. Cu composition causing a green color |
m. some examples of fluorite and scheelite |
____14. Fe in quartz | n. gold and native Cu |
____15. dichroism | o. feldspars, augite and hornblende |
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