2006-10-17 11:31:50 · 7 answers · asked by Ashli E 1 in Science & Mathematics ➔ Earth Sciences & Geology
The crystals are generally large...
2006-10-17 11:34:55 · answer #1 · answered by gothicjadeprincess 3 · 0⤊ 0⤋
It depends on different factors, such as the amount of nucleation sites ("seeds") in the magma, the amount of volatiles (water, carbon dioxide, chlorine, etc.) in the magma and the temperature of the magma. Pegmatites are the last stages of a cooling magma and crystals can grow to immense sizes in a relatively short time. Crystals are usually about a couple of millimeters to a few centimeters in length.
2006-10-18 08:37:16 · answer #2 · answered by Amphibolite 7 · 0⤊ 0⤋
The slower the magma cools, the larger the crystals.
2006-10-17 11:35:00 · answer #3 · answered by just browsin 6 · 0⤊ 0⤋
It depends on how fast the magma cools. The slower it cools, the bigger the crystals.
2006-10-17 11:39:55 · answer #4 · answered by bugnscout 4 · 0⤊ 0⤋
The crystals are larger. When magma cools quickly, the crystals don't have a lot of time to form.
Here is a website where I found this information:
http://www.earth.northwestern.edu/people/seth/Demos/XTAL/xtal.html
2006-10-17 11:35:18 · answer #5 · answered by hope03 5 · 0⤊ 0⤋
whilst magma comes out of the volcano as lava, it cools devoid of postpone as a results of temperature distinction consequently giving much less time for atoms to construct on (SMALLER CRYSTALS). whilst magma cools interior the earth, it remains warm and atoms deliver jointly (larger CRYSTALS)
2016-12-26 21:52:30 · answer #6 · answered by ? 3 · 0⤊ 0⤋
I lived in Ecuador and there is many volcanoes there. I have some hexagon Christalle the size of a large telephone post ,possible 60 ft.
2006-10-17 12:11:53 · answer #7 · answered by JOHNNIE B 7 · 0⤊ 0⤋