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Geosphere (Other properties of minerals minerales (Fracture and cleavage,…
Geosphere
Other properties of minerals
Tanacity
breaks easily
Quartz
Resistance to breaking
Fracture and cleavage
Fracture breaks into irregular shaped
Cleavage breaks into regular shaped
Describe a mineral breaks
Gypsum: construction
Hardnees
measured, mohs scales
Talc (1)
resistance to begin scratched
Diamond (10)
Lustre
Types
Glassy
Metallic
Silky----- matte
Pearly
Adamantine
surface reflecto light
The layers of the geosphere
crust
The thinnest
Earth's surface
Two Types:
continental crust
oceanic crust
Granite, basalt, slate
Mantle
interior of earth's
periodite
solid but soft
core
hotest
two parts
inner core-----solid
Outer core------liquid
iron and mickel
ROCKS
Metamorphic rocks
transformed by intense heat and pressure
have foliation
slate
gneiss
schist
Sedimentary rocks
the formed of the compaction of
Sediments and fragments of older rocks
Types conglomerate
they have dasts
finer material called matrix
sandstone
Clay
Plutonic rocks
magma cools and solidies
have crystals are easy to see
Granite and peridotite
Characteristics of rocks
Composition
one mineral
made of several mineral
Origin
Sedimentary: formed from sediments or fragments of other rocks
Metamorphic: formed by extreme pressure and heat
Igneus: lava or magma
Texture
depend of size and distribution of grains or crystals
The physical properties of minerals
Crystalline structure
we can see with naked eye
Crystal
examples
Quartz----prismatic
Pryite----cubic
shape mineral's particles show
Colour and streak
characteristic colour
Sulphur------Yellow
Malachite------green
most minerals several different colour
Quartz
TYPES OF ROCKS
Igneus:Formed from molten rocks
2 types
Volcanic rocks and Plutonic rocks
Formed when lava are cools and solidifies
Glassy appearance
bubbles inside
for examples
Basalt
Pumice
Obsidian
