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Oursinite
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Oursinite

Co(UO2)2(SiO3OH)2·6H2O
root IMA approved

Oursinite is a hydrated cobalt uranyl silicate mineral with the chemical formula cobalt di-uranyl bis(silicate hydroxide) hexahydrate. It crystallizes in the monoclinic crystal system and is classified as a nesosilicate in the Strunz classification (9.AK.10). The mineral typically exhibits a yellow to green color and has a vitreous to pearly luster. It has a relatively low hardness, ranging between 2 and 3 on the Mohs scale, and a moderate density. Oursinite is notable for its complex composition, incorporating both uranyl and silicate groups, and is typically found in secondary uranium mineralization environments.

Composition

Composizione (% in peso)
U
O
Co
Si
  • UUranium53.3%
  • OOxygen32.2%
  • CoCobalt6.6%
  • SiSilicon6.3%
  • HHydrogen1.6%

Overview

Oursinite is a hydrated cobalt uranyl silicate mineral with the chemical formula cobalt di-uranyl bis(silicate hydroxide) hexahydrate. It crystallizes in the monoclinic crystal system and is classified as a nesosilicate in the Strunz classification (9.AK.10). The mineral typically exhibits a yellow to green color and has a vitreous to pearly luster. It has a relatively low hardness, ranging between 2 and 3 on the Mohs scale, and a moderate density. Oursinite is notable for its complex composition, incorporating both uranyl and silicate groups, and is typically found in secondary uranium mineralization environments.

Etymology

Oursinite is named after Echinoidea, a class of marine invertebrates, though the specific reason for this derivation is not provided in the facts.

Geological genesis

As a uranyl silicate, oursinite is likely formed through secondary processes in uranium-rich environments, often associated with the alteration of primary uranium minerals under oxidizing conditions.

Spiritual meaning and crystal therapy

Mantra
I am grounded and open.

Spiritual meaning

Oursinite is a rare and mysterious stone, symbolizing connection to the earth and the unseen energies of the universe. It is believed to enhance spiritual awareness and foster a sense of harmony with nature.

Esoteric properties

Oursinite is said to be associated with calming emotions and enhancing spiritual insight. It is believed to support emotional balance and encourage a deeper connection to the natural world.

Associated chakra

Oursinite is traditionally associated with the root and heart chakras. Its grounding energy supports the root chakra, while its soothing presence is believed to help open the heart to compassion and love.

Crystal therapy use

In crystal therapy, oursinite is used for meditation, placed under the pillow, or worn as jewelry. It is believed to support emotional healing and spiritual growth through its calming and grounding properties.

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 am connected to the earth.
  • I embrace peace and balance.
  • I open my heart to love and understanding.

Cleansing and recharging

Pulizia & Ricarica

To cleanse oursinite, place it under moonlight or use a sound bowl. Avoid water-based methods, as it is not water-soluble but should be handled with care due to its rarity and delicate nature.

Guided meditation

Sit comfortably, hold the oursinite in your hands, and take three deep breaths. Focus on the stone’s energy and visualize roots growing from your body into the earth, grounding and calming you.

Body placement

Posizionamento sul corpo

Chakra: root

Place oursinite on the root chakra, at the base of the spine, or over the heart chakra for emotional and spiritual support during crystal therapy sessions.

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

Feng Shui

In Feng Shui, oursinite is best placed in the southeast or southwest sectors. The southeast supports wealth and prosperity, while the southwest enhances love and relationships, aligning with its heart and root chakra associations.

Pairings with other crystals

Oursinite pairs well with rose quartz and amethyst. Rose quartz enhances its heart-opening properties, while amethyst supports deeper spiritual insight and emotional balance.

Crystal bath

Not recommended for direct water immersion — instead place the stone NEXT to the bathtub or use indirect elixir method.

Secondary chakras