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Home Q & A Board Science-Related Homework Help Geography and Earth Sciences
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bromonox bromonox
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8 years ago
Quartz has a characteristic conchoidal fracture, yet rock shops often sell quartz as elongate six sided objects with a pointed termination. What causes this shape?
A) You should never buy a crystal like this because it is clearly fake, only artificial crystals grow this way.
B) The rock shop cuts them that way with abrasives. The facets are cut to give the crystals more "power" for the crystal people.
C) Quartz usually is amorphous, consistent with its conchoidal fracture, but when it grows it grows against minerals with planar faces, causing this shape.
D) The planar faces that form the object are crystal faces that grow when the crystals grew into a void.
Textbook 
Earth Science

Earth Science


Edition: 14th
Authors:
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PulsaPulsa
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8 years ago
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bromonox Author
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#2
8 years ago
Perfect timing, thank you for the help!
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#3
3 years ago
Thanks a lot! I really needed this
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