Two gemstones.
Side by side.

GEMSTONE ONE

Conichalcite

Conichalcite is known for velvety green botryoidal crusts or small green mineral spheres. Read the identification, handling and collector-use guide.

Colour & appearance

Apple green to yellow green

Mineral family

Calcium copper arsenate hydroxide

Mohs hardness

4.5

Representative source regions

Spain; Mexico; United States

Spain Mexico United States

Jewellery & care

Display-only mineral; arsenic-bearing chemistry makes ordinary jewellery and handling inappropriate.

Green

Read the Conichalcite 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.