A number of species closely related in composition, crystal form, and properties are here included.
We see a stone fall or a crystal form, and there is nothing stranger left to wonder at, for we have seen the Infinite in action.
In general, those in crystal form have proven more satisfactory than the powder dyes.
Identity, or approximate identity, of crystal form is not in itself sufficient to establish true isomorphism.
Its hardness, color, and crystal form generally characterize it.
This can be purchased in crystal form, and one teaspoonful dissolved in two quarts of water is the proper strength.
When both the crystal form and structure are retained, the substances are said to be isomorphous.