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Which minerals is glass made of?
Sand (silicon dioxide)
Which mineral has a hardness nearest to that of glass?
Glass has a hardness of 5.5 Minerals with hardness nearest to that of glass include apatite, which is slightly softer than glass with a hardness of 5.0, and orthoclase, which is slightly harder than glass with a hardness of 6.0.
Is pumice and obsidian exaples of minerals?
No. Pumice and obsidian are rocks composed mostly of glass.
What is formed by the the small pieces of volcanic glass minerals and ash from a volcano?
sediments
When was uranium first used?
Uranium minerals were used from the antiquity as coloring agents for glass and ceramics.
What three minerals are metal and scrach glass?
What three minerals are metal and scrach glass
What minerals are in a GPS?
Glass
What minerals does the rock pumice have?
There usually are no minerals in pumice. it is composed of glass.
What can identify minerals?
magnifying glass
What identifies minerals?
magnifying glass
What are the minerals in Pumice?
There are no minerals in pumice, just glass, but there is a high level of silica.
What minerals would scratch glass?
Diamond
What minerals make up volcanic glass?
No minerals make up true volcanic glass, as the crystalline structure of minerals did not have time to form before the lava hardened. A mineral must have a crystalline structure.
Which minerals is glass made of?
Sand (silicon dioxide)
How are minerals used in materials?
For glass, plastic and so on
Does obsidian have any minerals present?
No, it is a colloidal glass.
Why are brick and glass not classified as minerals?
They are not naturally occurring
