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You would examine a fracture surface of the rock. Intrusive igneous rocks that have cooled very slowly underground have visible crystals and are said to have a phaneritic texture. Granite is an example of this type of rock. Extrusive igneous rocks that have cooled quickly from lava above or on the surface generally will have crystals too small to be visible with the naked eye, in a texture that is referred to as aphanitic. Obsidian is an example of this type of rock.
What else can I help you with?
Can sizes of crystals in sedimentary rock tell us how quickly the lava or magma cooled that formed the rock?
Yes it can.
What does crystal size tell us about the formation of the minral?
The size of crystals in a mineral can indicate the rate at which the mineral cooled or crystallized. Larger crystals typically form when the cooling process is slow, allowing more time for the atoms to arrange themselves into an ordered structure. Smaller crystals are often associated with rapid cooling, preventing the atoms from organizing into larger structures.
How do you tell how old a rock engraving is?
with your eyes
How can a rock composition help geologists to classify the rock?
tell me the answer I'm the one asked it
What principles tell you how rock layers are laid?
Original horizonality
What do the large crystals in this igneous rock tell about the rock?
Large crystals in an igneous rock suggest that the rock cooled slowly, allowing for the crystals to grow to a larger size. This slow cooling process typically occurs deeper within the Earth's crust or in a magma chamber, resulting in the formation of coarse-grained rocks such as granite or diorite.
Can sizes of crystals in sedimentary rock tell us how quickly the lava or magma cooled that formed the rock?
Yes it can.
Am I slow at racing?
Kindly provide me with your speed for me to tell you whether you are fast or slow at racing.
What do the large crystals in igneous rocks tell about the rock?
That it cooled very slowly.
What are some examples of rocks cooled quickly?
Two examples that come to my mind right away are Basalt and Obsidian. You can tell on your own if a rock has cooled quickly by whether or not you can see individual grains of minerals within the rock. So if you cant see any, then its most likely that the rock cooled quickly.
Why do car ads tell how fast a car accelerates but seldom mention velocity?
The speed would be slow and if it was fast.
When a teenage boy moves too fast what do you do?
just tell him, just ask him to slow it down if you are uncomfortable :)
What means the prefix brady?
As far as I can tell, the prefix "brady" means slow. Contrast, ror instance, bradyphagia to tachyphagia. (Slow eating and fast eating)
What does the presence of large crystals tell you about the rock's formation?
Large crystals in a rock indicate slow cooling and crystallization, allowing mineral grains to grow to a larger size. This suggests that the rock formed deep within the Earth's crust or even in the mantle. Conversely, rocks with small crystals or glassy textures are typically formed from rapid cooling at the Earth's surface.
What can you tell about an igneous rock that has coarse-texture?
It is most likely extrusive.
What do you check for in taking a pulse?
You are feeling the heart rate. It call tell you if the person is even alive. It can tell how fast or slow the heart is beating. It can tell you how hard the heart is beating.
What does the presence of tiny crystals in a piece of igneous rock tell you about it?
The presence of tiny crystals in igneous rock indicates that the rock cooled quickly, resulting in the formation of small crystals. This suggests that the rock likely formed near or at the Earth's surface, like in a volcanic eruption. Rocks with larger crystals usually form deeper underground where cooling is slower.
