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Seven. They are:
Cubic - all angles 90 degrees, all sides equal length
Trigonal - all angles 90 degrees, two sides equal and the third unequal
Orthorhombic - all angles 90 degrees, no sides equal
Hexagonal - two angles 90 degrees and one angle 120 degrees, two sides unequal and the third unequal
Trigonal - all angles equal but not 90, all sides equal
Monoclinic - two angles 90, one more than 90, and no sides equal
Triclinic - no angles equal, no sides equal
For a graphical representation of these, see http://en.wikipedia.org/wiki/Crystal_system#Classification_of_lattices
Wiki User
∙ 14y ago
Wiki User
∙ 12y agoCubic
Tetragonal
Hexagonal
Monoclinic
Triclinic
Orthorhombic
I hope this helped!
(FYI perfect site for cheating on homework! JK... cheating in wrong >P)
Wiki User
∙ 10y agoNesosilicates: single Tetrahedrons
Sorosilicates: double Tetrahedrons
Inosilicates: single and double chains
Cyclosilicates: rings
Phyllosilicates: sheets
Tectosilicates: frameworks
Wiki User
∙ 15y agoThe six mineral crystal systems are:
- Cubic or Isometric
- Monoclinic
- Triclinic
- Hexagonal
- Orthorhombic
- Tetragonal
Their descriptions may be difficult to grasp and the subcategories are numerous. See the link below for a good basic description of each.
Wiki User
∙ 13y agoPyrite, Wulfenite, Pyromorphite, Topaz, Gypsum, and Feldspar.
Wiki User
∙ 13y agoHexagonal, cubic, tetragonal, orthorhombic, monoclinic, triclinic.
Wiki User
∙ 6y agoSix crystal classes are known.
Wiki User
∙ 6y agoSix groups of crystals are known.
Wiki User
∙ 13y ago7
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What does weed look like under a microscope?
You see many crystals. YOU CAN SEE MANY CRYSTALS IN WEED
How many crystals are there?
7
What are Orange crystals called like the purple crystals are called Amethyst and things what about Orange crystals?
there are many names including calcite
Agree or disagree most minerals are found in nature as pure crystals?
Disagree. Most minerals are found in nature as complex mixtures of various elements, rather than as pure crystals. Pure crystals are relatively rare and often require highly specific conditions to form. Many minerals are formed through a combination of different elements and can have impurities or be present in different forms.
How are herbicides classified?
Herbicides are classified based off many different qualities and properties. These qualities and properties include activity, use, chemical family, mode of action, and controlled vegetation type.
How many systems are crystals classified in?
7
Are all classification systems the same?
Classification systems are all the same are all different vary with the taxonomist
Are sport drink crystals heterogeneous?
Sports drink crystals are heterogeneous because you can see that it is made of many different parts.
How many different kinds of crystals are there?
What are the different kinds of crystals that made up rocks are called?
How many different types of snow crystals are there?
thousands!!
How many different types of space frames are there?
space frames are broadly classified in three categories1.skeleton(braced)frame work,2.stressed skin systems,3.suspended(cable or membrane)structured
Why was Chinese food classified in many different kitchens?
because its good
Do crystals have the same shapes?
Crystals of the same substance form a similar structure in nature, but there are many basic crystaline structures in different substances
How do snow crystals develop into many different forms?
each snow crystal is very unique
Who classified the four Varnas and when and why?
No one did. It was written by many people from different varnas.
How many kilogram in a mi?
they are different measuring systems
What chemicals are in a crystal?
There is no single answer for this. Many chemicals form crystals, and the chemical determines the nature of the crystal. If you know what kind of crystal, then you know its chemical nature. For example, common clear quartz crystals are made up of SiO2 or Silicon dioxide. Copper sulfate crystals have an entirely different shape and a deep blue-green color, and both are different from crystals of common table salt.
