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Faces
A triangular based pyramid has 4 faces, 6 edges and 4 vertices
it is the property of solid crystal that they have straight edges and flat faces.
Too Do This You Must Have Thee Correct Objects .
In the angles between faces and the number of edges of equal length
Corundum is in the trigonal crystal system.
Shape: Trigonal
Hexagonal. Trigonal Crystal System.
Mercury, at solidification temperatures, is classified in the trigonal crystal system.
A crystal is a polyhedral shape. The number of faces (which means the same thing as sides) depends on the crystal.
Dolomite has a trigonal crystal structure which in turn has a hexagonal lattice structure.
cleavage surface are smooth and shiny as the fracture is due to weakness in the bonds between the atoms rather than a breakage. Crystal face is where the crystal development such as twinning take place.
12
the faces on a crystal...
This is a "trigonal pyramid" or "tetrahedron."
crystal
If a mineral belongs to the hexagonal crystal group, then its crystals have six sides.