SPINEL

Chemical Composition: MgAl₂O₄

Colors: Red, Pink, Gray, Purple, Blue, Black.

Origins: Myanmar, Sri Lanka, Afganistan, Vietnam, Afganistan.

Category: Spinel

Composition: Magnesium Aluminium Oxide

Crystal Structure: Cubic

Luster: Vitreous

Hardness: 8

Specific Gravity: 3.60

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TOURMALINE

Chemical Composition: (Ca,K,Na)(Al,Fe,Li,Mg,Mn)3(Al,Cr,Fe,V)6(BO3)3(Si,Al,B)6O18(OH,F)

Colors: All Colors

Red & Pink (Rubellite)

Green Tourmaline

Pink & Green (Watermelon)

Dark Blue (Indicolite)

Electric Blue / Blue Green (Paraiba Tourmaline)

Origins: Brazil, Nigeria, Madagascar, Mozambique, Afganistan

Category: Tourmaline

Composition: Complex Borosilicate

Crystal Structure: Trigonal

Luster: Vitreous

Hardness: 7.5

Specific Gravity: 3.06

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AQUAMARINA

Chemical Composition: Be₃Al₂SiO₆

Color: Sky Blue, Dark Blue, Green Sea

Origins: Afganistan, Brazil, India, Madagascar, Nigeria, Pakistan

Category: Beryl

Composition: Beryllium Aluminum Silicate

Crystal Structure: Hexagonal

Luster: Vitreous

Hardness: 7.5

Specific Gravity: 2.69

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EMERALD

Chemical Composition: Be3Al2(SiO3)6

Colors: GREEN

Origins: COLOMBIA, ZAMBIA, PAKISTAN.

Australia, Austria, Brasil, India, United States, Norway, Zimbabwe

Category: Beryl

Composition: Beryllium Aluminum Silicate

Crystal Structure: Hexagonal

Luster: Vitreous

Hardness: 7.5

Specific Gravity: 2.71

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