0
What else can I help you with?
How is gneiss similar to granite?
Granite is an igneous rock and gneiss is a metamorphic rock.
What major rock is foliated?
Slate, gneiss, schist. Metamorphic rocks. Just the foliated ones.
What is the world's oldest dated mineral?
The oldest mineral is somewhat controversial as the dating error of such old objects is millions of years; the oldest so far dated a zircon which is 4,404 million years ± 8 million years which is in a metamorphic gneiss in the Jack Hills of the Narryer Gneiss Terrane of Western Australia.
What rock comes after granite Is subjected to enough heat and pressure in the rock cycle?
When granite is subjected to enough heat and pressure, it becomes a metamorphic rock called gneiss.
Is pencil considered hard or brittle?
hard
Is gneiss soft or hard?
Gneiss is hard.
What group is gneiss in?
A Gneiss is a Metamorphic rock
Is gneiss folaited or nonfolaited?
Gneiss is foliated.
Does gneiss scratch glass?
Gneiss, a metamorphic rock composed of granular minerals, typically does not scratch glass. The hardness of gneiss generally ranges between 6 and 7 on the Mohs scale, while glass has a hardness of around 5.5. Therefore, while some minerals within gneiss may be hard enough to scratch glass, the rock itself usually does not have the consistent properties required to do so.
Is an gneiss rock sedimentary rock?
No, gneiss is metamorphic.
What are the characteristics of gneiss?
Gneiss is foliated and coarse grained
What is gneiss mineral group?
Gneiss is a rock, not a mineral.
How hard is it to drill through gneiss?
Typically very hard, imagine drilling into a granite top at your local cocktail bar... Imagine it twice as hard... Now in terms of drilling in all boils down to the amount of air pressure you have going DTH to break and pulverize the gneiss. Typically, if one would use a 24bar 1170 cfm compressor, drilling a 6"dia hole, you will drill roughly 4-8m per hour. This is our averages in Archean granites and gneiss. It takes way much longer if you have less air pressure (less than 21bars / 300psi)
Where would gneiss be in the US?
Gneiss is a part of the earths lower crust. No matter where you drill you will eventually uncover gneiss.
Is gneiss nonbanded?
No. Gneiss has alternating light and dark bands.
Can gneiss metamorphose into phyllite?
No. Phyllite can metamorphose into schist and then into gneiss.
Is gneiss an example of igneous rock?
No. Gneiss is a metamorphic rock.
