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What is the shape of a mineral that has three directions of cleavage that intersect at 90 degrees?
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∙ 13y ago
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∙ 13y ago
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What are the 7 properties mineralogist use to identify ninerals?
Colour - however, this can be a very misleading property. Transparency - Is the crystal transparent, translucent or opaque Lustre - how shiney is the crystal is, there are various different types of lustre. Hardness - Expressed in a number between 0 and 10 on the Moh scale. Streak - the colour of the mineral in powdered form. Easily testable by scratching the mineral on a porcelain plate. Cleavage - Very characteristic to a mineral is what the preferred cleavage is. Mode of occurrence - Is it like needles, fibre, tabular, prismatic, etc.
What type of cleavage does feldspar have?
Plagioclase feldspar is a non-metallic mineral. It has 2 cleavages at nearly right angles. It is also differentiated from potassium feldspar because it contains striations. Potassium feldspar has 2 cleavages at nearly right angles.
Which mineral is a perfect square?
No mineral can be a perfect square: which is a two dimensional figure.No mineral can be a perfect square: which is a two dimensional figure.No mineral can be a perfect square: which is a two dimensional figure.No mineral can be a perfect square: which is a two dimensional figure.
What is the natural shape of a mineral?
The natural shape of a mineral would be its crystalline structure.
Which is the hardest mineral?
Diamond is the hardest mineral at Mohs hardness 10, ten being the hardest. There is no natural mineral substitute for processes requiring diamond. Diamond is four times as hard as corundum, the mineral constituting rubies and sapphires. Although diamond is the hardest naturally occurring mineral, it is easily fractured, a characteristic which allowed early jewellery makers to facet this crystal.
One way to test a mineral is to break it and see how many directions of what it has?
cleavage....
How many directions of cleavage do the feldspar minerals have?
Two directions of cleavage, at 90 degrees to each other.
One way to test a mineral is to break it and see how many directions of what it what?
...directions of cleavage...
How does a mineral break into smooth pieces when a tool is used to break it?
A mineral can have varying numbers of cleavage planes, areas where there exists an inclination to cleave when struck or force is applied.. Most mineral crystals exhibit a preferred cleavage in certain directions, but may have cleavage planes in other directions.
What is the ability of a mineral to break along preferred directions called?
Cleavage
A mineral that splits along a flat surface in 3 directions is?
Calcite exhibits cleavage in three directions.
What mineral has a cleavage that goes in 90 degree angles in three directions?
Rock salt.
What does the presence of cleavage planes within a mineral tell you about the chemical bonds that hold a mineral together?
minerals with cleavage break along smooth, flat surfaces in one or more directions.
How does cobaltite fracture?
The mineral cobaltite, CoAsS, has a brittle fracture, and exhibits good cleavage in three directions.
What is the name of a mineral that splits along flat surfaces?
cleavage
Examines a mineral's ability to break into even pieces?
Cleavage is a minerals ability to break into even pieces useful for identification. Cleavage in two directions equals Feldspar for example.
Is the cleavage for a mineral always the same for that mineral?
Yes, all different samples of that mineral will have the same cleavage.
