EEPS Test 2
What is a mineral?
a naturally formed, inorganic solid that has a definite crystalline structure
When a solution becomes oversaturated, new solid particles are said to _______
appear in the solution. These are called precipitates. These are the solute that were not dissolved in the solution since the solubility has been reached.appear in the solution. These are called precipitates. These are the solute that were not dissolved in the solution since the solubility has been reached.
Hawaii is an example of ______
hot-spot volcanism
In silicate minerals, the SiO4 tetrahedron can be chemically bonded to form ______
rings, single and double chains, large flat sheets, or 3-dimensional structures
Hot Spots can occur_____
within either continental or oceanic plates - not near plate boundaries
What are the types of minerals?
- Industrial minerals—raw materials for manufacturing - Ore minerals—sources of valuable metals - Gem minerals
What is a polymorph?
-Chemical composition is the same, but crystalline structure is different -Occurs when identical molecules crystallize in different environments and actually produce different minerals -allow an interpretation of the conditions the mineral was created and/or has endured
What is a diffuse plate boundary?
Diffuse plate boundaries extend over broad deformation zones hundreds to thousands of kilometers wide. For example, the boundaries are diffuse between Australia and India, North America and South America, and Nubia and Somalia.
physical properties of crystals depend on _____________.
Identity of atoms Arrangement of atoms Nature of atom
silica tetrahedron
The basic building block of all silicate minerals; consists of one silicon atom and four oxygen atoms.
What happens when a continental plate meets an oceanic plate at a convergent boundary?
When an oceanic plate converges with a continental plate, the oceanic crust will always subduct under the continental crust; this is because oceanic crust is naturally denser. Convergent boundaries are commonly associated with larger earthquakes and higher volcanic activity.
How is graphite different than diamond?
When you look at graphite and diamond, it is hard to imagine that they are identical chemically, for they are so different physically. Graphite is opaque and metallic- to earthy-looking, while diamonds are transparent and brilliant. Another important physical difference is their hardness.
subduction zones are ____
convergent
Naturally forming glass (such as obsidian) is NOT considered a mineral because it
does not have a fixed crystallized structure