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Calcite

Photo: Jan Pavelka / Wikimedia Commons (CC BY-SA 4.0)

Calcite

Also known as: Iceland spar, optical calcite

One of Earth's most common minerals, found in every colour and famous for its double refraction.

  • ColourOrange, Clear, Green, Blue, Yellow, Pink, Honey
  • Mineral groupCarbonate
  • ChemistryCaCO₃
  • Hardness (Mohs)3
  • Crystal systemTrigonal
  • Where it's foundMexico, Iceland, USA, China, Brazil
  • ChakraAll (by colour)
  • ZodiacCancer

What is Calcite?

Calcite is calcium carbonate and one of the most abundant minerals on Earth – it makes up limestone, marble, chalk, and cave stalactites. It is the reference mineral for 3 on the Mohs scale.

Clear calcite ("Iceland spar") shows strong double refraction: look through it and a line appears doubled. Some researchers think Viking navigators may have used it as a "sunstone" to find the sun on cloudy days. The name comes from the Latin calx, meaning lime.

Calcite fizzes in weak acid, which is a simple way geologists identify it.

Calcite astrology & birthstone

  • Zodiac signsCancer
  • Ruling planetMoon
  • ElementFire
  • Birthstone month—

Zodiac, planet and element links come from crystal-lore traditions and vary between authors. Birthstone months follow the American Gem Society list.

Calcite meaning & traditional properties

Calcite comes in many colours, and crystal traditions assign each its own theme – orange for energy and creativity, green for renewal, blue for calm, honey for confidence. In general it is seen as a cleansing, uplifting stone.

  • Energy
  • Cleansing
  • Motivation

Traditional and metaphysical properties are shared for cultural and educational interest. Crystals are not a substitute for medical advice or treatment.

How to use Calcite

  • Choose a colour that matches your intention and keep it where you'll see it.
  • Look through a clear calcite rhomb to see its double image.

How to care for Calcite

Calcite is soft and has perfect cleavage. Keep it away from water, acids (vinegar, lemon, cleaning sprays) and knocks. Dust with a dry soft brush.

Shop Calcite

Hand-picked calcite crystals and jewellery from our Paralimni workshop.

Rituals & pairings

Pair Calcite with a energy & motivation ritual

A bright morning ritual to wake up your energy and motivation.

Traditionally paired with: Lemongrass, citrus, mint or eucalyptus incense · An orange or yellow candle · Palo santo

  • Open the curtains and clear the space with palo santo.
  • Light an orange or yellow candle and citrus, lemongrass or eucalyptus incense.
  • Hold your crystal and name one thing you'll get done today.
  • Carry the crystal with you as your reminder.

Safety: never leave candles, incense or smudge sticks burning unattended, keep them away from children, pets and anything flammable, and ventilate the room. Rituals are shared as tradition, not as a treatment.

Ritual oils, essential oils & perfumes

Deepen your practice: tarot & oracle cards

Wear it & work with it

Calcite jewellery & pendulums

    Wear the energy of your favourite crystals every day – browse our handmade crystal jewellery and dowsing pendulums.

    Calcite FAQs

    Can calcite go in water?

    Brief contact won't dissolve it, but it's soft and acid-sensitive – best kept dry.

    Why does calcite show double images?

    Clear calcite has strong double refraction, splitting light into two rays.

    Related crystals

    • Orange Calcite
      In our shop

      Orange Calcite

      Glowing orange calcite from Mexico – a bright crystal lore stone of energy and creativity.

    • Blue Calcite

      Blue Calcite

      Soft sky-blue calcite – a gentle crystal lore stone for calm and clear communication.

    • Green Calcite

      Green Calcite

      Fresh mint-green calcite – a crystal lore stone of renewal and a fresh start.

    • Honey Calcite

      Honey Calcite

      Warm golden-honey calcite, often clear enough to show its perfect rhomb shape – a stone of confidence.

    Sources