Crystals
During this lab we try to growth two types of crystals by Solidification process . Our variables was halite and epsomite. We have put those minerals to boiled water till the minerals can't saturate. Then we have put them near the windows, and waited till water evaporate. As result we got some minerals at the bottom.
Mineral Properties:
Luster
Looks like metal or not
<- metallic luster
Color
the color of a mineral when you look at it
<- gold color
Streak
the color of the powder a mineral gives when stratched on a streak plate
Hardness
how hard it is
Cleavage
breaks evenly
Fracture
breaks unevenly
Composition
structure of mineral
Mineral Identification:
Sphalerite
Color: black to bronze
Luster: metallic
Fracture
Muddy
Fluorite
Color: green
Luster: non-metallic
Cleavage
Clear
During this lab we try to growth two types of crystals by Solidification process . Our variables was halite and epsomite. We have put those minerals to boiled water till the minerals can't saturate. Then we have put them near the windows, and waited till water evaporate. As result we got some minerals at the bottom.
Mineral Properties:
LusterLooks like metal or not
<- metallic luster
Color
the color of a mineral when you look at it
<- gold color
Streak
the color of the powder a mineral gives when stratched on a streak plate
Hardness
how hard it is
breaks evenly
Fracture
breaks unevenly
structure of mineral
Mineral Identification:
Sphalerite
Luster: metallic
Fracture
Muddy
Fluorite
Luster: non-metallic
Cleavage
Clear
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