1. Fully describe three typical ways that minerals form. 2. Diamonds scratch gla

Question

1. Fully describe three typical ways that minerals form.
2. Diamonds scratch glass.  If someone gives you something clear and a little colorful and scratches glass with it, is it necessarily a diamond?  (Use the Mohs Hardness scale to answer this question.)
3. Describe how geologists identify minerals they’ve found in the desert?
4. Why is glass not a mineral?
5. What is the relationship between the way in which silicone oxygen tetrahedra bond in micas and the characteristic cleavage of micas?
6. The San Gabriel have anorthosite in them that is identical to mineral that makes the moon white. True or false?
7. The San Gabriel mountains started off as hills ten million years ago and rose dramatically in the last six million years. true or false?
8. The San Gabriel mountains started off as hills ten million years ago and rose dramatically in the last six million years. true or false?
9. Most minerals are: carbonates, silicates, sulfides, halides or oxides?

Explanation / Answer

Minerals form by Crystallization of magma from the lower part of Earth. When magma comes out of the land, it is in liquid form. When the temperature of the magma lowers due to the contact with the Earth's atmosphere, the fast moving electrons due to the agitated heat, starts resting down and deals with other ions in the space to form bonding. They find a place for themselves and equal distances will be shared by all the ions forming a crystal of definite shape. Another way a rock can form is Precipitation where the magma mixes with water or any other solution to form new minerals therby cooling the randomly moving ions to rest in place and form a shape. Another typical way a mineral can be formed is changes in pressure and temperature, here the pressure may decrease or increase depending on the movement of magma in and around the suface of earth and the temperature may change when contacted with the environment. Diamond can only scratched and affected by only an another diamond. A glass cannot scratch a diamond due to its low hardness. So, it is not necessarily a diamond because a glass may scratch and the effect may be visible in the mineral. Geologists identify the minerals in desert by its color, streak , hardness and subject them to a test for magnetic forces and other chemicals to see if they match with the typical test results. If something should qualify as a mineral it should be crystalline in nature and occurs naturally. But glasses form so quickly that it can hardly form a crystalline structure.

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.