Two gemstones.
Side by side.

GEMSTONE ONE

Strontianite

Strontianite: strontium carbonate with white, colourless, pale green, yellow and brown appearance; Mohs 3.5. Mineral identification, origins, care and buying guide.

Colour & appearance

White, colourless, pale green, yellow and brown

Mineral family

Strontium carbonate

Mohs hardness

3.5

Representative source regions

United Kingdom; Germany; United States; Mexico

United Kingdom Germany United States Mexico

Jewellery & care

Primarily collected for its crystal sprays; not suited to daily-wear gemstone jewellery. Unlike a photographed product listing, this guide's AI illustration is not a real individual specimen or a guarantee of stock.

WhiteColourlessGreenYellowBrown

Read the Strontianite guide

GEMSTONE TWO

Sapphire

Sapphire is a gem variety of corundum, often associated with blue but also found in other colours. Its hardness makes it an enduring jewellery material, although the secu...

Colour & appearance

Blue and other colours

Mineral family

Corundum (Al₂O₃)

Mohs hardness

9

Representative source regions

Sri Lanka, Madagascar, Myanmar, Australia, Thailand and Montana in the United States are recognised sources. The Kashmir region is historically famous for highly valued blue sapphires.

Sri Lanka Madagascar Myanmar Australia Thailand United States

Jewellery & care

Choose the style and setting to suit the specific stone, treatment information and intended use.

Blue

Read the Sapphire guide

Hardness measures scratch resistance, not breakage. Source regions are educational examples, not claims about the provenance of an individual GEMHOOD product. Images may be digital gemstone illustrations.