1. A sample of mineral is being studied in the laboratory. Which of its property is readily manifested by sheer observation?
A. Color
B. Hardness
C. Luster
D. Streak
2. A certain mineral is white in color. After it is bombarded with ultraviolet light, its color changes into light red. What property of mineral is exemplified in the scenario?
A. Color
B. Fluorescence
C. Luster
D. Streak
3. What property of mineral enables it to continue glowing even after a source of ultraviolet light has been turned off from it?
A. Color
B. Fluorescence
C. Luster
D. Phosphorescence
4. What mineral has the capacity to scratch all other minerals?
A. Diamond
B. Fluorite
C. Quartz
D. Topaz
5. Which type of luster does a DIAMOND exhibit?
A. Brilliant
B. Glassy
C. Pearly
D. Waxy
6. Which of the following is NOT a property of a mineral?
A. Cleavage
B. Fluorescence
C. Luster
D. Texture
7. Which of the following reason why color is NOT often a useful identification property?
A. Some minerals are colorless.
B. Some minerals are single elements.
C. Different minerals can be different colors.
D. The same mineral can be different colors.
8. Which of the following is TRUE about all minerals?
A. Minerals are inorganic solids.
B. Minerals have a glassy luster.
C. Minerals fracture the same way.
D. Minerals possess varieties of states.
9. Which of the following minerals belong to the carbonate group?
A. Apatite
B. Calcite
C. Gypsum
D. Halite
10. How would you describe the luster of galena, pyrite, silver, and gold?
A. Dull
B. Glassy
C. Metallic
D. Nonmetallic
Answer (2)
The questions involve properties of minerals, specifically focusing on aspects like color, hardness, luster, and types of fluorescence. The answers highlight fundamental mineral characteristics, including their classification, identification, and unique properties. For example, diamonds possess a brilliant luster and are the hardest minerals.
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Here is the analysis for each of the questions asked in relation to minerals:
A sample of mineral is being studied in the laboratory. Which of its property is readily manifested by sheer observation? Answer: A. Color
The color of a mineral is often one of the first observations that can be made simply by looking at it. While not always reliable for identification, it is the most immediately noticeable property.
A certain mineral is white in color. After it is bombarded with ultraviolet light, its color changes into light red. What property of mineral is exemplified in the scenario? Answer: B. Fluorescence
Fluorescence is the ability of a mineral to emit visible light when exposed to ultraviolet light, causing it to temporarily change color.
What property of mineral enables it to continue glowing even after a source of ultraviolet light has been turned off from it? Answer: D. Phosphorescence
Phosphorescence is the property that allows a mineral to continue glowing even after the UV light source has been removed.
What mineral has the capacity to scratch all other minerals? Answer: A. Diamond
A diamond is the hardest natural substance known and can scratch all other minerals.
Which type of luster does a DIAMOND exhibit? Answer: A. Brilliant
Diamonds are known for their brilliant luster, which results from their high refractive index and ability to reflect light.
Which of the following is NOT a property of a mineral? Answer: D. Texture
Texture is more commonly associated with rocks rather than individual minerals.
Which of the following reason why color is NOT often a useful identification property? Answer: D. The same mineral can be different colors.
Many minerals have various impurities that can cause them to appear in different colors, making color an unreliable identification property.
Which of the following is TRUE about all minerals? Answer: A. Minerals are inorganic solids.
All minerals are naturally occurring inorganic solids with a defined chemical composition and crystalline structure.
Which of the following minerals belong to the carbonate group? Answer: B. Calcite
Calcite is a common example of a carbonate mineral, which contains carbonate ions.
How would you describe the luster of galena, pyrite, silver, and gold? Answer: C. Metallic
These minerals exhibit a metallic luster, which is characterized by a shiny, metal-like appearance.
