Mineralape
Cassidyite
David Hospital·CC BY 4.0·Wikimedia

Cassidyite

Ca2Ni(PO4)2·2H2O
Triclinic heart IMA approved

Cassidyite is a hydrated calcium nickel phosphate mineral with the chemical formula Ca2Ni(PO4)2·2H2O. It crystallizes in the triclinic crystal system and belongs to the Strunz classification 8.CG.05. The mineral is typically light green in color and exhibits a vitreous luster. It has a relatively low hardness and moderate density, though specific values for these properties are not provided. Cassidyite is a rare phosphate mineral and is part of the broader group of phosphates, which are commonly found in low-temperature hydrothermal or sedimentary environments.

Composition

Composizione (% in peso)
O
Ca
P
Ni
  • OOxygen43.9%
  • CaCalcium22.0%
  • PPhosphorus17.0%
  • NiNickel16.1%
  • HHydrogen1.1%

Overview

Cassidyite is a hydrated calcium nickel phosphate mineral with the chemical formula Ca2Ni(PO4)2·2H2O. It crystallizes in the triclinic crystal system and belongs to the Strunz classification 8.CG.05. The mineral is typically light green in color and exhibits a vitreous luster. It has a relatively low hardness and moderate density, though specific values for these properties are not provided. Cassidyite is a rare phosphate mineral and is part of the broader group of phosphates, which are commonly found in low-temperature hydrothermal or sedimentary environments.

Etymology

Cassidyite is named after William A. Cassidy, in recognition of his contributions to mineralogy. The mineral was officially approved by the International Mineralogical Association (IMA).

Spiritual meaning and crystal therapy

Mantra
Green light heals my heart

Spiritual meaning

Cassidyite is a gentle stone associated with growth and harmony. It is traditionally seen as a stone of balance and emotional clarity, supporting spiritual evolution and a deeper connection to nature.

Esoteric properties

Cassidyite is said to promote emotional healing and inner peace. It is associated with calming the mind, fostering resilience, and encouraging a sense of stability and trust in one's journey.

Associated chakra

Cassidyite is traditionally linked to the heart chakra due to its green color, supporting love, compassion, and emotional healing. It may also resonate with the solar plexus to aid in self-confidence and personal power.

Crystal therapy use

In crystal therapy, Cassidyite is used in meditation, placed on the heart or solar plexus, or worn as jewelry to support emotional balance and inner harmony. It is often used during times of change or growth.

Information on crystal therapy is provided for cultural and traditional purposes only. It does not replace medical advice or treatment. Always consult a doctor for health issues.

Affirmations

Positive first-person sentences to repeat mentally or aloud while holding the crystal, during meditation or at the start of the day. They help focus intention and attune to the energy traditionally attributed to the stone.

  • I open my heart to love and healing.
  • I trust my inner strength and resilience.
  • I am grounded in peace and balance.

Cleansing and recharging

Pulizia & Ricarica

To cleanse Cassidyite, place it under moonlight or use sound bowl vibrations. Avoid salt, direct sunlight, or water immersion to preserve its delicate structure and energy.

Guided meditation

Sit comfortably and hold Cassidyite in your hands. Breathe deeply, focusing on the green light of the stone. Visualize it filling your heart with calm and balance, releasing emotional tension.

Body placement

Posizionamento sul corpo

Chakra: heart

Place Cassidyite over the heart chakra during therapy lay-down to support emotional healing and balance. It may also be placed over the solar plexus to enhance confidence and inner strength.

  • Corona
  • Terzo occhio
  • Gola
  • Cuore
  • Plesso solare
  • Sacrale
  • Radice

Feng Shui

In Feng Shui, Cassidyite is well-suited for the southeast Wealth sector and the east Family/Health sector. It supports harmony, growth, and positive energy flow in these areas of the home.

Pairings with other crystals

Cassidyite pairs well with rose quartz for enhanced emotional healing and with green aventurine for abundance and growth. Together, they support heart-centered balance and renewal.

Crystal bath

Not recommended for direct water immersion — instead place the stone NEXT to the bathtub or use indirect elixir method. This protects its delicate structure while still allowing its energy to influence the bath space.

Secondary chakras