Ch 26 Flashcards
naturally occurring inorganic solid with a crystalline form.
mineral
the color of a minerial in powered form is called
streak
when a mineral brakes along preferred planes of weakness
cleavage
minerals that brake bad
fracture
minerals resistance
hardness
molten rock in earth
magma
a mineral is
naturally occurring, inorganic solid, and with a crystalline form
what are the two most abundant elements that make up Earths crust
oxygen,silicon
what does inorganic mean
material that is nonliving
what does the arragement of an atom and the bonds between them reflect about a mineral
how it breaks how hard it is , and its crystal shape
what are all the ways to identify minerals
cleavage, fraction, hardness, luster, streak, atomic arragement, crystal shape
what are two types of luster
metallic and nonmetallic
how does metallic luster reflect light
reflects light ez
how does nonmetallic luster reflect light
shine like glass or apper earthly or waxy
how do you perform a streak test
by rubbing a mineral on an unglazed white tile
what are the two types of breakage that can happen to minerals
fracture and cleavlage
what is the name of the scale to measurement the hardness of a mineral
mohs scale
what is the number range on Mohs Scale of Hardness
1-10
how many different crystal shape systems are there
6
minerals grow from the
what are the 3 ways mineralscan form
what are the two mineral groups
which mineral group is the most abundant in earths crust
what elements aresilicates made up of
silicon and oxygen
nonsilicates do not contain what element
sililacates
what minerals is used to make glass
quarts
define rock
A rock is a naturally formed mixture containing minerals, rock fragments, and
volcanic glass.
how are rocks identified
Rocks are identified by their composition and texture.
what does the texture of a rock describe about a rock
The texture of a rock describes the size, shape, and arrangement of the rock’s
components.
where do instructive igneous rocks form
Igneous rocks are those that form from molten rock material that cools and
crystallizes either underground or on Earth’s surface.