Quartz has a characteristic conchoidal fracture, yet rock shops often sell quartz as elongate six sided objects with a pointed t
ermination. What causes this shape?A. Quartz usually is amorphous, consistent with its conchoidal fracture, but when it grows it grows against minerals with planar faces, causing this shape.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. The planar faces that form the object are crystal faces that grow when the crystals grew into a void.D. You should never buy a crystal like this because it is clearly fake, only artificial crystals grow this way.
C. The planar faces that form the object are crystal faces that grow when the crystals grew into a void.
Explanation:
Quartz is considered the most abundant mineral on earth. Its best known form is quartz crystals, similar to broken glass pieces. Quartz formations are part of a geological process that can take thousands of years. Quartz stones are mainly composed of Silicon Dioxide (SiO2), being present in all types of rock formations on the planet, whether igneous, metamorphic or sedimentary. Quartz is sold as six-sided elongated objects with a sharp end, this shape is caused because the flat faces that form the object are crystal faces that grow when crystals grow in a void.
For the answer to the question above, I think the answer is simply because <span>four legs characteristic is not special to mammals but the hair that is something more important and special characteristic of the mammals, that's why. I hope this helps </span>
ONE OF THE OLDEST ARGUMENTS IN THE HISTORY OF PSYCHOLOGY IN THE NATURE VERSES NURTURE DEBATE EACH OTHER THESE SIDES HAVE GOOD POINTS THAT IT IS REALLY HARD TO DECIDE WHETHER A PERSON'S DEVELOPMENT IS PREDISPOSED IN HIS/HER DNA, OR A MAJORITY OF ITS INFLUENCED BY THIS LIFE EXPERIENCES AND HIS/HER ENVIRONMENT .........
