Rutilated and tourmalinated quartz have a similar look, consisting of long needle-like crystals oriented in various directions.

The most common inclusions of a pink sapphire are silk, needles, fingerprints, feathers, crystals or cavities.

Boulder opals are a perfect representation of earth, sky and sea. The play of colour is rife and startling.

Boulder opals are a perfect representation of earth, sky and sea. The play of colour is rife and startling.

The inclusions of unheated sapphires draw you into this ethereal world of moiré fingerprints, crystals and three-directional silk.

Garnets are most commonly thought of as a brownish-red colour. However, Garnets actually occur in a number of differently coloured species.

Everyone has heard of moonstone, but what do you know about its lesser-known sibling, sunstone?

Did you know zircon can be described as a geological clock that tells us about the early earth?