Fracture is the tendency of a mineral to break along curved surfaces and non-straight surfaces. Cleavage is when it breaks into flat pieces.
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Herding? sorry if it’s not right
Answer: 15 degrees and it is 2:02 in America
Explanation:
Standard or “Nautical” time zones are 15 degrees of longitude wide. The first central meridian is the Prime Meridian, 0° E/W. The next central meridians are at 15°E and 15° W.
Answer:
Quartz is not pure in this rock.
Explanation:
When quartz shows effervescence in contact with an acid, it means that it is not in its pure state, but rather related to other substances that may be cementing the quartz. This effectiveness is caused by substances that do not react like quartz, such as calcite.
In this case, we can conclude that in relation to the calcium-rich rock shown in the question above, the calcium is not pure, but it is likely to be related to calcite, or other material that does not react to acid.
