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Axinite

Axinite is a mineral with a Mohs hardness of 6.5–7 and a vitreous luster, usually brown, purple or gray.

A borosilicate that forms sharp, clove-brown wedges. The name comes from the axe-like shape.

Axinite specimen
Photo: Ivar Leidus, CC BY-SA 4.0, via Wikimedia Commons

How to identify axinite

  • Thin wedge or axe-head crystals, usually brown with a violet tint.
  • Hardness about 6.5–7.
  • Strongly glassy.

Often confused with

Where it's found

  • Bourg d'Oisans, France
  • Dalnegorsk, Russia
  • New Jersey
  • Tasmania

Uses

Collector specimens.

Rock tumbling

Can be tumbled with care.

Did you know?

Greek axine means axe — the crystals look like thin axe heads.

Axinite FAQ

What is axinite?

Axinite is a mineral with a Mohs hardness of 6.5–7 and a vitreous luster, usually brown, purple or gray. A borosilicate that forms sharp, clove-brown wedges. The name comes from the axe-like shape.

How do you identify axinite?

Thin wedge or axe-head crystals, usually brown with a violet tint. Hardness about 6.5–7. Strongly glassy.

How hard is axinite?

Axinite has a Mohs hardness of 6.5–7. Axinite scratches glass, and a steel knife can't scratch it.

Where is axinite found?

Notable localities include Bourg d'Oisans, France; Dalnegorsk, Russia; New Jersey; and Tasmania.

What is axinite used for?

Collector specimens.

Can you tumble axinite?

Yes, with care.

What is axinite often confused with?

Axinite is most often confused with Titanite and Smoky Quartz. Titanite wedges are often honey-colored and softer (about 5–5.5). Smoky quartz has no wedge habit and no cleavage.

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