A breach is material if, as a result of the breaching partyâs failure to perform some aspect of the contract, the other party receives something substantially different from what the contract specified.
In mineralogy, crystal habit is the characteristic external shape of an individual crystal or groups of crystals. A single crystal's habit is a description of its general shape and its crystallographic forms, plus how well developed each are.Recognizing the habit may help in identifying a mineral.or example, minerals used for asbestos insulation often grow in a fibrous habit, a mass of very fine fibers. The terms used by mineralogists to report crystal habits describe the typical appearance of an ideal mineral.
Best Answer: Usually, very dark igneous rocks are mafic rocks that have been formed deep underground. They include gabbros and peridotite. They have very little silica content (which gives them the darker colour and a lot of iron and magnesium.They are usually denser than the felsic rocks with high silica content.est Answer: Usually, very dark igneous rocks are mafic rocks that have been formed deep underground. They include gabbros and peridotite. They have very little silica content (which gives them the darker colour and a lot of iron and magnesium. They are usually denser than the felsic rocks with high silica content.