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Pisces Birthstone & Crystals: Aquamarine

♓ February 19 – March 20 · Aquamarine

Aquamarine specimen: light blue and blue-green gemstone
Photo: Darla Sondrol · Wikimedia Commons · CC0

Pisces is the water sign of the two fish, ruled by Jupiter and Neptune: empathetic, imaginative and prone to drifting. Aquamarine, the sea-blue March birthstone, is its modern stone. Amethyst, covering the February half of Pisces, is the traditional one.

Bloodstone, March's other birthstone, is traditionally paired with Pisces to keep dreamers anchored. Fluorite is the modern pick for Pisceans who absorb everyone else's moods, and moonstone reflects the sign's Neptunian intuition and love of the tides.

Pisces at a glance

  • Dates: February 19 – March 20
  • Element: Water · Ruled by Jupiter and Neptune
  • Primary stone: Aquamarine
  • Traditional stone: Amethyst
  • Supporting crystals: Bloodstone, Fluorite, Moonstone
  • Often described as empathetic, artistic, dreamy, escapist

How Piscess traditionally use their stones

  • Aquamarine or moonstone as jewelry worn near the throat or heart.
  • Bloodstone in a pocket on days you need to stay practical.
  • Fluorite after time in crowds.

About Aquamarine

Aquamarine is a blue variety of beryl, the same mineral family as emerald. Its name means 'water of the sea' in Latin.

TypeSemi-Precious Stones
Chemical formulaBe3Al2(SiO3)6
Mohs hardness7.5
Crystal systemhexagonal
Lustervitreous
StreakWhite
CleavageImperfect
  • The largest gem-quality aquamarine weighed over 110 kg
  • Sailors believed it calmed waves and kept them safe
  • Heat treatment can enhance the blue color

Read the full Aquamarine wiki entry →

How to tell real Aquamarine at a glance

  • Color: Light Blue, Blue-Green, Greenish Blue. Look at a clean, dry surface in daylight. Color zoning, banding or spots are as diagnostic as the hue.
  • Luster: Vitreous. Fresh surfaces shine like glass; a dull surface usually means weathering, so chip or wet a corner.
  • Transparency: Transparent. Hold a thin edge up to a bright light and note whether light passes through.
  • Mohs hardness: 7.5. It scratches glass, steel and even quartz; only harder gems will mark it.

Full Aquamarine identification guide →

Frequently asked questions

What crystal is for Pisces?

Aquamarine is the primary Pisces stone and amethyst is traditional. Bloodstone, fluorite and moonstone are the most popular supporting crystals.

What are the Pisces dates?

Pisces runs from February 19 – March 20. Cusp dates can shift by a day depending on the year and your time zone; if you were born on the boundary, check your birth time.

Can I wear a stone that isn't my zodiac stone?

Of course. Zodiac stone lists are traditions, not rules. Pick the stone whose look and story you like, then use StoneSnap's identify guides to make sure it is the real thing.

Other zodiac stones

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