AQUAMARINE

Characteristics

Hardness (or Mohs Hardness) : 7.5 to 8

RI (Refractive Index) : 1.577 to 1.583 with birefringence from 0.005 to 0.009

SG (Specific Gravity) : 2.67 to 2.84

Nomenclature AQUAMARINE

Dimensions in mm Carat
2.00 0,03
2.50 0,06
3.00 0,10
3.50 0,16
4.00 0,24
4.50 0,31
5.00 0,45
5.50 0,60
6.00 0,77
7.00 1,10

Nomenclature AQUAMARINE

Dimensions in mm Carat
4x3 0,16
5x3 0,22
6x4 0,42
7x5 0,65
8x6 1,06
9x7 1,58
10x8 2,09
11x9 3,15

Nomenclature AQUAMARINE

Dimensions in mm Carat
4x2 0,08
5x2,5 0,12
6x3 0,22
8x4 0,49
10x5 0,88

Nomenclature AQUAMARINE

Dimensions in mm Carat
3,0 0,13
4,0 0,31
4,5 0,36
5,0 0,43
5,5 0,56
6,0 0,92
7,0 1,16
8,0 1,48
9,0 2,1

Nomenclature AQUAMARINE

Dimensions in mm Carat
4x3 0,18
5x3 0,25
6x4 0,50
7x5 0,92
8x6 1,38
9x7 1,93
10x8 3,16
11x9 4,09

Nomenclature AQUAMARINE

Dimensions in mm Carat
5x3 0,17
6x4 0,35
7x5 0,60
8x5 0,77
9x6 1,23

Nomenclature AQUAMARINE

Dimensions in mm Carat
2,0 0,06
2,5 0,09
3,0 0,14
3,5 0,28
4,0 0,33
4,5 0,46
5,0 0,61
5,5 0,65
6,0 0,99
7,0 1,59

Sources

The main deposits are in Brazil,
but aquamarines can also be found in other countries
such as Nigeria, Madagascar, Mozambique, Afghanistan and Pakistan.

Common treatments

Aquamarines are usually heated to remove any greyish or yellowish hues.
This treatment is stable.

Care and Cleaning

Handle with care and store separately to avoid any risk of abrasion.
Clean with warm soapy water and dry with a soft cloth