diamonds magnetite fluorite are few
forms only in a sedimentary rock
Wood is an organic matter and there for not a mineral. Although some organic life forms can produce minerals.
Aluminium isn't a mineral (it doesn't occur naturally). Perhaps you are thinking of alumina, which does have transparent mineral forms called corundum (ruby, sapphire, padparadscha).
Metamorphic rocks that consist of only one mineral that forms large interlocking crystals often have a _____ texture.
When magma cools, it forms igneous rock.
There are several, including isometric forms such as cubes and octahedrons, twinning is also seen.
One can find more information about octahedrons on the octahedron Wikipedia information page. There is also information regarding octahedrons on geometry related sites such as kjmaclean.
Stop signs.
Octahedrons.
Sodium chloride forms a lattice structure.
Gypsum forms from the mineral calcium sulfate, while halite forms from the mineral sodium chloride.
Ice in a glacier is considered a mineral because it has a crystalline structure and forms through natural processes, meeting the criteria to be classified as a mineral. However, the material that forms a glacier, such as snow, does not have a defined crystal structure and does not meet the criteria to be classified as a mineral.
This mineral is called halite.
Yes. The crystal system is isometric: 4/m bar 3 2/m and the habits include isometric forms, such as cubes and octahedrons, but twinning is also seen.
Quartz is a common rock forming mineral.
When a mineral forms a definite shape, it is known as a crystal. Crystals are ordered arrangements of atoms or ions in a repeating pattern that gives them their characteristic shape. Crystal shape is determined by the internal arrangement of atoms within the mineral.
A banded mineral is a mineral that has grains that are arranged in a particular pattern of flat layers or forms swirls.