Two gemstones.
Side by side.

GEMSTONE ONE

Pollucite

Pollucite: caesium-bearing zeolite; aluminosilicate, Mohs 6.5–7. Explore identification, origins, buying, safe handling and care.

Colour & appearance

Usually colourless to white, less often pale grey, pink, pale blue or lilac

Mineral family

Caesium-bearing zeolite; aluminosilicate

Mohs hardness

6.5–7

Representative source regions

Italy; Canada; Namibia; Zimbabwe

Italy Canada Namibia Zimbabwe

Jewellery & care

Some clear pieces can be faceted for collectors, but pollucite is rarely used in mainstream jewellery and should be sold with a scientifically sound label. The illustrative image is not an authenticated mineral specimen or product...

ColourlessWhiteGreyPinkBlue

Read the Pollucite 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.