Prehnite Cluster
Original price was: $52.00.$36.40Current price is: $36.40.
Lovely prehnite specimens from Mali are lovely! Read and see video on the Tabs.
These are sweet “happy” green crystals are called Prehnite Clusters. We have sold quite a few at the shops as they intrigue. They grow with smaller, darker epidote crystals.
Dimensions are for the left one and right is same weight. After cleaning I did use natural wax. Listen and view this video.
The crystals are extremely beneficial for memory, recollection, and peace. It is a gentle, nurturing stone cooling down anger. It also helps to quieten restlessness, nervousness and worry. Read more about the shape.
You cannot got wrong with either prehnite cluster!
Weight | 100 g |
---|---|
Dimensions | 67 × 47 × 27 mm |
Colour | Green / Shamrock |
Country Crystal Grew | Mali |
Position Left Right | Left, Right |
Healing Properties
Benefits of Prehnite
Additional Properties Based on Variations
Epidote in Prehnite
Prehnite After Laumontite
Geological Information
Geological Information of Zeolites
- Generic name for a group of crystals often found together on the matrix
- About 40 natural zeolites have been identified during the past 200 years. It includes the following which are commonly found growing together in Indian deposits (along with fluorite,and chalcedony):
- Common: Apophyllite, Heulandite, Prehnite, Cavansite, Okenite, Scolecite, Calcite, Pectolite, Gyrolite and Stilbite.
- Uncommon: analcime, chabazite, clinoptilolite, pollute, erionite, ferrierite, laumontite, mordenite, mesolite, thomsonite, natrolite, and phillipsite.
- Natural zeolites form where volcanic rocks and ash layers react with alkaline groundwater.
- Commonly used as:
- commercial adsorbents,water purification, as catalysts,
- in nuclear reprocessing and production of laundry detergents.
- in medicine and in agriculture.
- heaps more uses for zeolites: read here.
- Much of it comes from Nasik, India.
- Many have become rare as one of the two major mines was closed by the Government.
- Most if not all zeolites a soft and easy to break or scratch.
More about Some of the Members
Apophyllite
- Apophyllite forms a flat-topped pyramid point or if the top has been knocked off then cubes
- Type: Mineral
- Class: Silicates
- Member of Group: Zeolites
- Mohs Hardness: 4.5 - 5
- Formula: (K,Na)Ca4Si8O20(F,OH)·8H2O
- Crystal System: Tetragonal
- Crystal Habit: Prism, tabular, massive
- Lustre / Diaphaneity: Transparent to translucent, Vitreous; pearly
- Colour: Usually white, colorless; also blue, green, brown, yellow, pink, violet
- Read more geological information.
- Special Notes
- Many people mistake it for clear quartz - however this unique crystal shape will tell you its not.
- Apophyllite has become harder to get (and this more expensive) after one major -mine (of two) was shut down by Indian Government for safety reasons.
- Though relatively unfamiliar to the general public, apophyllite is fairly prevalent around the world but little comes onto the market.
Green Pectolite
- Usually green balls
Heulandite
- Comes in rhombic and coffin-shaped forms.
- Easy to confuse with stilbite as similar form especially in smaller clusters.
- More geological information.
Natrolite
- Mine has been closed.
- Seen only as minor inclusions on other zeolites and in Nunderite
Stilbite
- A low-temperature secondary hydrothermal mineral abundant in the volcanic rocks.
- Crystals are typically thin tabular.
- More information in Wikipedia.
- Crystal System: Monoclinic
- Mineral Class: Silicates
- Group: Zeolites
- Hardness: (3.5 - 4)
- Colour: Colorless or white, also yellow, brown, pink, salmon, orange, red, green, blue or black.
Okenite
- Small white cotton balls.
- Crystal System: Triclinic
- Mineral Class:Silicates
- Hardness: (4-5) Color: white to slightly yellow, blue
- Easily damaged if touched.
- Mostly found in India. Read more in Wikipedia.
Mesolite
- a sodium calcium zeolite, is intermediate between natrolite, a sodium zeolite, and scolecite, a calcium zeolite:
- Specialists may be able differentiate between scolecite, nautrolite and mesolite but most of us can't.