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there is no visible grain size

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Q: What is obsidian's grain size?
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Related questions

What is obsidians density?

2.6g


What is the grain size of dacite?

Small to medium grain size.


What is obsidians grain shape?

Obsidian typically has a smooth, glassy texture due to its quick cooling process when formed from volcanic lava. It has a conchoidal fracture pattern, which means it breaks with curved, shell-like shapes. The grain shape of obsidian is generally fine-grained due to its rapid cooling.


What term has the definition of grain size?

Particle size is another name for the term grain size.


What is slate's grain size?

Slaet in grain size is the size of sand crystals.


How big is one grain?

The size of a grain can vary depending on the type, but generally, a grain is around 1-3 millimeters in size. Grain size can also be influenced by factors such as processing and variety.


What is the grain size of fine sand?

The grain size of fine sand typically ranges from 0.075 to 0.425 millimeters in diameter.


What is the grain size of coal?

The grain size of coal can vary, but it typically ranges from fine particles to larger chunks. Coal can be classified based on its grain size as fine, medium, or coarse coal. The grain size of coal can impact its combustion efficiency and handling characteristics.


Grain size for bituminous coal?

The grain size of bituminous coal typically ranges from 0.5 to 2 inches. It is considered a medium-grain size coal, with a balance of fine and coarse particles. The grain size can vary depending on the specific source and processing of the coal.


What is Obsidians' composition?

potassiun feldspar, quartz, plagioclase feldspar,biotite, and amphibole.


What are 3 characteristics of a rock?

1.Grain Size 2.Grain Shape 3.Grain Pattern


The factor by which grain size increases with each texture category?

Grain size typically increases by a factor of 2-4 for each texture category. For example, from fine to medium grain size, there is a doubling or quadrupling of grain size. This progression helps geologists classify rocks based on their crystal sizes.