Crystals & Minerals

Prehnite is a green to yellowish-green colored mineral that belongs to the phyllosilicate family. It is composed of calcium, aluminum, and silicate, with traces of iron, magnesium, and other elements. Prehnite crystals have a unique pearly luster and can form in a variety of shapes, including tabular, prismatic, and stalactitic formations.

Prehnite is believed to have a calming effect on the mind and emotions, promoting relaxation and inner peace. It is also said to be a stone of unconditional love, compassion, and healing.

Name: Prehnite and Graphite Crystal Cluster
Specimen Size:   Thumbnail-Sized
Dimensions: 19-25 mm / .75 - 1.0 inches
Weight: 7.0 - 8.4 Grams / 0.2 - 0.3 Ounces
Origin: Mined in Merelani Hills, Arusha, Tanzania

Name: Apophyllite and Prehnite Crystal Cluster
Specimen Size:  Cabinet-Sized
Dimensions: 74x52x40 mm / 2.9x2.0x1.6 inches
Weight: 138 Grams / 4.9 Ounces
Origin: Mined in Mumbai (Bombay), India

Prehnite can form prismatic, tabular, or pyramidal crystals, but usually occurs in botryoidal, reniform, stalactitic, granular, or compact habits.  It is usually green in color, but may be white, colorless, yellow, or gray.  It has a colorless streak.  Prehnite is transparent to translucent, with a vitreous to pearly luster.  Prehnite forms in cavities in basaltic lavas.

Apophyllite is more often than not the star attraction and very popular among collectors for its fantastic crystals with their gem-like vitreous to pearly luster. Apophyllite almost always forms good crystals of two major types. The favorite crystal habit is the rectangular prism capped by a steep four-sided pyramid. A doubly terminated crystal is exceptionally special. The faces of the pyramids are rotated 45 degrees with respect to the prism faces and so plunge down into the prism edges. This produces a diamond-shaped pyramidal face instead of a typical triangular pyramid face. The shape is an extraordinary example of tetragonal crystal form. Although normally colorless or white, colored examples of apophyllite are always treasured. Some crystals of apophyllite are cut as gems but are mostly just for the collectors. Would be a beautiful addition to any new or existing collection.

Apophyllite is said to promote introspection into one's own behavior and the correction of imbalances or flaws that are perceived. This is a stone of truth, bringing recognition of one's true self and allowing that to be shown to the world. Apophyllite is said to have a calming effect, and to effectively reduce stress, releasing mental blockages and negative thought patterns. Apophyllite is also said to release suppressed emotion, to overcome anxiety, worries and fears. It calms apprehensions and allows uncertainty to be tolerated.

Prehnite is said to be a stone of unconditional love and the crystal to heal the healer. Placing it in the garden is believed to help make a home into a healing sanctuary and teach one how to be in harmony with nature. A good Fung Shui stone, prehnite is said to be helpful for decluttering, helping one let go of possessions no longer needed.

This is an amazing, large cluster of Okenite, Laumontite and Gyrolite on Green Prehnite Geode Crystal from Dindoshi Quarry, Mumbai, India. This is a high quality geode with outstanding, perfect okenite spheres, tons of Prehnite and awesome Laumontite crystals.  Since this is a geode type specimen all of the okenite hairs are perfectly intact with no damage to any crystal.  Would be a beautiful addition to any collection.

Name: Okenite, Laumontite and Gyrolite on Green Prehnite Geode Crystal
Specimen Size:  Large Cabinet-Sized
Dimensions: 151x111x61 mm / 5.9x4.4x2.4 inches
Weight: 1.13 kg / 2 lbs 7 oz
Origin: Mined in Dindoshi Quarry, Mumbai, India

Mesolite is a fragile member of the zeolite group and forms almost exclusively in delicate, needle-like crystal habits. Prehnite can form prismatic, tabular, or pyramidal crystals, but usually occurs in botryoidal, reniform, stalactitic, granular, or compact habits. 

It is usually green in colour, but may be white, colourless, yellow, or gray.  Prehnite is transparent to translucent, with a vitreous to pearly luster.  Prehnite forms in cavities in basaltic lavas.

Name: Mesolite Flowers on Quartz and Prehnite in Geode
Specimen Size:  Large Cabinet-Sized
Dimensions: 82x76x76 mm / 3.25x3x3 inches
Weight: 519 Grams / 1 Lbs 2 Ounces
Origin: Mined in Dindoshi, India

Gyrolite often forms nodular aggregates that can appear glassy, dull or even fibrous. The aggregate nodules often accompany many fine and rare minerals such as Apophyllite and Okenite plus many of the Zeolites. Looks very nice on Prehnite! Would be a beautiful addition to any new or existing collection.

Name: Gyrolite spheres with Apophyllite on Prehnite Druze
Specimen Size:  Large Cabinet-Sized
Dimensions: 171x89x70 mm / 6.75x3.5x2.75 inches
Weight: 979 Grams / 2 lbs 2 ounces
Origin: Mined in Mumbai (Bombay), India

Gyrolite often forms nodular aggregates that can appear glassy, dull or even fibrous. The aggregate nodules often accompany many fine and rare minerals such as Apophyllite and Okenite plus many of the Zeolites. Looks very nice on blue green Prehnite! Would be a beautiful addition to any new or existing collection.

Name: Gyrolite and Apophyllite on Prehnite
Specimen Size:  Large Cabinet-Sized
Dimensions:  171x101x95  mm / 6.75x4x3.75 inches
Weight: 1.03 KG / 2 Lbs 4 Ounces
Origin:  Mumbai, India

Prehnite can form prismatic, tabular, or pyramidal crystals, but usually occurs in botryoidal, reniform, stalactitic, granular, or compact habits.  It is usually green in colour, but may be white, colourless, yellow, or gray.  It has a colourless streak.  Prehnite is transparent to translucent, with a vitreous to pearly luster.  It forms in cavities in basaltic lavas.

Prehnite is said to be a stone of unconditional love and the crystal to heal the healer. Placing it in the garden is believed to help make a home into a healing sanctuary and teach one how to be in harmony with nature. A good Fung Shui stone, prehnite is said to be helpful for decluttering, helping one let go of possessions no longer needed.

Name: Prehnite Crystal Cluster
Specimen Size: Miniature-Sized
Dimensions:  52x39x23mm / 2x1.5x0.9 inches
Weight: 58 Grams / 2.1 Ounces
Origin: Mined in Mumbai, India

Prehnite can form prismatic, tabular, or pyramidal crystals, but usually occurs in botryoidal, reniform, stalactitic, granular, or compact habits.  It is usually green in colour, but may be white, colourless, yellow, or gray.  It has a colourless streak.  Prehnite is transparent to translucent, with a vitreous to pearly luster.  It forms in cavities in basaltic lavas.  This spectacular blue green specimen will be a start in your collection.

Prehnite is said to be a stone of unconditional love and the crystal to heal the healer. Placing it in the garden is believed to help make a home into a healing sanctuary and teach one how to be in harmony with nature. A good Fung Shui stone, prehnite is said to be helpful for decluttering, helping one let go of possessions no longer needed.

Name: Prehnite Crystal Cluster
Specimen Size: Cabinet-Sized
Dimensions:  66x49x37mm / 2.6x1.9x1.5 inches
Weight: 82 Grams / 2.9 Ounces
Origin: Mined in Mumbai, India