Which sample would be the softest on the Moh's scale?Select one:galenahighlight_offpyritehighlight_offSphaleritehighlight_offhematitehighlight_off
Question
Which sample would be the softest on the Moh's scale?
Select one:
- galena
- pyrite
- Sphalerite
- hematite
Solution
To determine which sample would be the softest on the Mohs scale, let's analyze each mineral listed:
-
Mohs Hardness Scale: The Mohs scale ranks minerals based on their hardness from 1 (softest) to 10 (hardest).
- Talc (1)
- Gypsum (2)
- Calcite (3)
- Fluorite (4)
- Apatite (5)
- Orthoclase (6)
- Quartz (7)
- Topaz (8)
- Corundum (9)
- Diamond (10)
-
Mineral Hardness:
- Galenite (Galena): Hardness around 2.5.
- Pyrite: Hardness around 6-6.5.
- Sphalerite: Hardness ranges from 3.5 to 4.
- Hematite: Hardness around 5-6.
Final Answer
Based on the Mohs hardness scale, Galenite is the softest mineral among the given options, with a hardness of approximately 2.5.
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