Geology / History

Prehnite was named for the Dutch military forces commander Colonel Hendrik Von Prehn (1733–1785) who first located the mineral near the Cape of Good Hope in South Africa.

Prehnite forms when hot, circulating solutions leach minerals from surrounding rocks & deposit them in veins or cavities in igneous rocks. This mineral can develop a radiating crystal structure & forms complete individual spheres given the right conditions. The radiating crystal structure also gives Prehnite a cat’s-eye effect when cut into cabochons or faceted gems.

Formation in a tabular, botryoidal or stalactite deposits have also been found. Prehnite can occur with inclusions of “flowers” or “suns” of Natrolite & also tourmalinated. Often incorrectly labeled as Jade, Prehnite is sometimes incorrectly sold as Jade or New Jade. 

Extensive deposits of gem quality Prehnite occur in the basalt tablelands in Northern Territory, Australia.Australian Prehnite ranges in colour from almost grey, pale green to dark oily green & a range of yellow colours. Prehnite is also found in South Africa, China, Scotland and the USA. 

Metaphysical Properties

The prophecy stone, enhances vision & intuition. Prehnite boosts energetic connectivity both to the divine & earthly energies. It helps to sense danger, strengthening courage & survival instincts. This crystal brings clarity, centeredness & knowing, opening the mind to enhance connectivity. Prehnite has a powerful earth energy that stimulates Kundalini generating a greater healing capacity within.

The vibration of this crystal is perfect for past life exploration & reclaiming lost or forgotten powers. As a crystal of new growth Prehnite imparts forgiveness & the ability to release emotional wounds that bind us to the past. New joyous life is the gift of this crystal, it helps to manifest abundance & prosperity. The dream weaver magic within Prehnite is powerful & contains endless possibilities.

An excellent aid in preparation & precision timing, it guides us in focused decision making. Complete divine connection is attained with Prehnite & many doors are opened. It facilitates interaction with the elemental realms, including fairies & other dimensions.

Prehnite enhances ones energetic reach increasing distance healing capacity & powering global or Earth healing abilities. Excellent for protecting the aura particularly from spells, psychic vampirism or curses. It can also boost the strength of spells. This crystal expands & fortifies light pillars initiating transmutation & master creation. Prehnite resonates with the solar plexus & heart chakra, it also cleans aligns & protects all meridians.

Crystal Healing

Aids lungs, stomach, immune system, liver, kidneys, digestion, quickens metabolism & brain function. Relieves tension, stress & muscle aches.

Mineralogy

Group: Silicate Mineral

Crystal System: Orthorhombic; columnar tabular crystals & aggregates

Composition: Ca2Al(AlSi3O10)(OH)2

Form/Habit: Globular, reniform to stalactitic

Hardness: 6-6.5

Cleavage: Distinct on [001]

Fracture: Uneven

Lustre: Vitreous - pearly

Streak: White

Specific Gravity: 2.8 - 2.95

Transparency: Semi-transparent to translucent

R.I: nα = 1.611 - 1.632 nβ = 1.615 - 1.642 nγ = 1.632 - 1.665

Colour: Colourless to gray to yellow, yellow-green or white

Birefringence: δ = 0.021 - 0.033

Fluorescence: Fluorescent, Short UV=blue white mild peach, Long UV=yellow.

Strunz Classification: 09.DP.20 (Inosilicate transitional to phyllosilicate)

Dana Classification: 72.1.3.1 (Phyllosilicate)