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Avas Birthstones

Published on Feb 06, 2016

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PRESENTATION OUTLINE

Birthstones

By: Ava Sillars
Photo by p.m.w

Amethyst

February Bithstone
Photo by Barta IV

Untitled Slide

  • Color: Purple, Green, and Blue
  • Transparency: Transparent to Translucent
  • Double Refraction: .009
  • Luster: Vitreous
  • hardness: 7
  • Found: Brazil, Uruguay, Sri Lanka
  • Used For: Jewlery

Amethyst is a Greek word that means not drunk. The goddess of wine was offended by a huntress and said that the first person in his sight would get eaten by tigers. The first person he saw was a maid. In fear she called a goddess and got saved. And the goddess had poured wine on her and that is the legend of why amethyst is purple because most amethyst is purple.

Aquamarine

March Birthstone
Photo by greyloch

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  • Color: Blue
  • Transparency: Transparent to Transluccent
  • Double Refraction: .006
  • Luster: Vitreous
  • Hardness: 7.5 to 8
  • Found: Brazil, Madagascar, USA, and many more
  • Used For: Jewlery

Aquamarine is the the sailors gem. it is suppose to protect them from sea monsters. Aquamarine is known as the poor mans diamond. Aquamarine was used for eye glasses in Germany to correct shortsightedness. It also means sea/water.

diamond

April birthstone

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  • Color: Every single color
  • Transparency: Transparent to Opaque
  • Double Refraction: None
  • Luster: Adamantine
  • Hardness: 10
  • Found: India, and USA, South Africa
  • Used for: Blades, Jewlery

Diamonds are the hardest mineral on earth! Because diamonds are the hardest mineral on earth, they are on a lot of blades. Diamond is a Greek word and it means invincible. Diamonds today were formed 1 to 3 billion years ago!

eMERALD

MAY BIRTHSTONE 
Photo by greyloch

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  • Color: Green
  • Transparency: Transparent to Transluccent
  • Double Refraction: .006
  • Luster: Vitreous
  • Hardness: 7.5 to 8
  • Found: Russia, Austrailia, and Brazil
  • Used For: Jewlery

Emeralds can have other minerals get in them. sometimes, it even makes them more expensive. Some beliefs that when a emerald is is put in your mouth, it stops chronic diarrhea. Yuck!

sapphire

september birthstone

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  • Color: Blue, Pink, White, Green, Yellow
  • Transparency: Transparent to Opaque
  • Double Refraction: .0008
  • Luster: Vitreous and Adamantine
  • Hardness: 9
  • Found: Africa, Asia, Australia, Madagascar and USA
  • Used For: Jewlery

Sapphires have iron and titanium that gives sapphires there blue color. Sapphires represent peace. Colorless sapphires are called fancy sapphires.

ruby

july birthstone

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  • Color: Red
  • Transparency: Opaque
  • Double Refraction: .0008
  • Luster: Vitreos and Adamantine
  • Hardness: 9
  • Found: Myanmar, Cambodia, Thiland
  • Used For: Jewlery

The largest mined ruby weighed 4 pounds! The very best myanmar rubies are sometimes are said to have "pigeons blood" red color. Where rubies are made it is very hot. As they are growing, other tiny minerals get stuck in the rubies being made. The minerals inside the rubies are called flaws.

opal

october berthstone
Photo by greyloch

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  • Color: Every Color
  • Transparency: Transparent to Opaque
  • Double Refraction: .0008
  • Luster: Adamantine to Vitreous
  • Hardness: 9
  • Found: On Mars, Mexico, USA, Australia
  • Used For: Jewlery

The word opal comes from the Greek, meaning to see a change of color. Some opal is more valuable than diamonds! Opal necklaces in particular are thought to protect the person wearing it from evil and to protect their eyesight.

turquise

december birthstone/my birthstone
Photo by Vilseskogen

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  • Color: Blue Green, Multicolored
  • Transparency: Opaque
  • Double Refraction: .04
  • Luster: Waxy
  • Hardness: 5-6
  • Found: Mexico, USA
  • Used For: Jewlery

Turquoise is a stone of protection. the name turquoise comes from the french, meaning "Turkish Stone". Many continents and countries had wanted turquoise for its luck, power, and protection.

sources

Photo by JD Hancock

Thanks for watching!

And thank you Mrs. Daniels for letting us do this.

Photo by Mark Kenny

index

Vitreous- Earthy, metallic, greasy, silky
Opaque- Some light gets reflected, some absorbed, some scattered, and the rest transmitted
Double Refraction- How light hits the rock
Adamantine- Not metallic, and light reflecting on the mineral

Photo by eriwst

Now have a good life, AND EAT ICE CREAM!