Crystals That Start With A
There are 31 crystals, rocks and gemstones in Gemdle that start with the letter A — each with a specimen photo, its Mohs hardness and a quick note on how to spot it. Tap any stone for the full identification guide.
Notable crystals that start with A
- Amethyst — Purple, vitreous/glassy lustre, Mohs 7 (lower in impure varieties).
- Amber — Yellow, resinous lustre, Mohs 2–2.5.
- Agate — Brown, waxy, vitreous when polished lustre, Mohs 6.5–7.
- Aquamarine Beryl — Blue, vitreous to resinous lustre, Mohs 7.5–8.0.
- Aragonite — White, vitreous, waxy, resinous lustre, Mohs 3.5–4.
- Apatite — Blue, vitreous to subresinous lustre, Mohs 5 (defining mineral).
- Aventurine — Green, vitreous – waxy to dull when massive lustre, Mohs 7 – lower in impure varieties (defining mineral).
- Azurite — Blue, vitreous lustre, Mohs 3.5 to 4.
All 31 stones beginning with A
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Amethyst
Mohs 7 (lower in impure varieties)
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Amber
Mohs 2–2.5
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Agate
Mohs 6.5–7
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Aquamarine Beryl
Mohs 7.5–8.0
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Aragonite
Mohs 3.5–4
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Apatite
Mohs 5 (defining mineral)
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Aventurine
Mohs 7 – lower in impure varieties (defining mineral)
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Azurite
Mohs 3.5 to 4
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Amazonite
Mohs 6.0–6.5
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Albite
Mohs 6–6.5
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Ametrine
Mohs 7
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Actinolite
Mohs 5–6
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Angelite
Mohs 3.5
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Almandine
Mohs 7.0–7.5
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Arsenopyrite
Mohs 5.5–6
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Augite
Mohs 5.5 to 6
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Andalusite
Mohs 6.5–7.5
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Alexandrite
Mohs 8.5
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Andradite
Mohs 6.5 to 7
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Apophyllite
Mohs 4.5–5
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Adamite
Mohs 3.5
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Analcime
Mohs 5–5.5
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Aegirine
Mohs 6
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Andesine
Mohs 6 – 6.5
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Antigorite
Mohs 3.5–4
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Axinite
Mohs 6.0–7.5
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Anglesite
Mohs 2.5–3.0
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Aquamarine
Mohs 7.5–8.0
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Acanthite
Mohs 2.0–2.5
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Amblygonite
Mohs 5.5–6
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Aurichalcite
Mohs 2
Frequently asked questions
How many crystals start with the letter A?
Gemdle lists 31 crystals, rocks and gemstones beginning with A, including Amethyst, Amber, Agate.
What is a well-known crystal that starts with A?
Amethyst is one of the most searched-for stones beginning with A. Amethyst is a violet variety of quartz.