SPINEL

SPINEL

A sparkling lustre, almost bridal, is the versatile Spinel.

SPINEL

Introduction

Spinel is cut in many shapes and sizes. Colours range from orange to intense red or pink, and all shades between purple, blue and violet to bluish green. An incredibly versatile jewel, the Spinel is found is all forms and colours, and hence is a favourite when it comes to being used in jewellery. Spinel is a durable gemstone with a hardness of 8.0 on the Mohs Hardness Scale.

Spinel gemstones enjoy a long and storied history. Some of the most famous historical gems that were originally thought to be rubies turned out to be spinel. A notable example is the Black Prince’s Ruby, a centrepiece of the British Imperial State Crown, which was only recently confirmed to be a spinel. Spinels tend to be more reflective and glittering than rubies, because of their different optical characteristics. Much like rubies and sapphires, they can be found in a wide assortment of colours.

Location

Tanzania


Key facts

Mineral Family
spinel
Refractive Index
1.718
Mohs Hardness
8
Birthstone
August
Chemical composition
MgAl2O4
Briefringence
none
Specific gravity
3.60