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Rocks and M inerals. By D avid. Sapphire. Hardnes : Moh´s scale hardness 9 Color: pure blue, yellow or green. Is the same as corundum It’s composed of aluminum and oxigen . It’s formed in an enviorment free of silicon. Emerald. Hardness: 7.5-8 Color: purple and green

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sapphire
Sapphire
  • Hardnes: Moh´s scale hardness 9
  • Color: pure blue, yellow or green.
  • Is the same as corundum
  • It’s composed of aluminum and oxigen.
  • It’s formed in an enviorment free of silicon
emerald
Emerald
  • Hardness: 7.5-8
  • Color: purple and green
  • Transparency: transparent to translucent
wulfenite
Wulfenite
  • Hardness : 2.5
  • Color : Yellow, orange and red
  • Transparency: transparent to translucent
crocoite
Crocoite

Hardness: 2.5

Colors: orange or red

Transparency: transparent to translucent

platinum
Platinum
  • Hardness: 4.5
  • Color: gray
  • Transparency: opaque
g old
Gold
  • Hardness: 3
  • Color: golden
  • Transparency: opaque
j ade
Jade
  • Color: green and more colors.
  • Hardness: 6.5-7
  • Transparency: opaque
diamond
Diamond
  • Hardness: 10
  • Color: white to black, colorless, yellow, pink, red, blue or brown.
  • Transparency: transparent to opaque
slide15
Iron
  • Hardness: 7.9
  • Color: gray and black
  • Transparency: opaque