PARAGON MINERALS

Spectacular Mineral & Crystal Suppliers
Edinburgh 

ITEM: Huge Natural Specimen of Actinolite (Tremolite)

SOURCE: Erongo Region, Namibia

DIMENSIONS:  173mm x 183mm x 92mm

WEIGHT: 2762g / 6.09 lbs

STAND INCLUDED?: Yes, '3 point' Type stand included ( Not the plinth)

INTERNATIONAL SHIPPING: YES, via Global Shipping Programme

THIS SPECTACULAR SPECIMEN IS OFFERED AT AN

UNBELIEVABLY LOW PRICE - AND WE HAVE ONLY ONE LIKE IT

FREE UK EXPRESS POSTAGE TOO !!

DESCRIPTION:
This listing is for a really spectacular and huge specimen of fibrous actinolite / tremolite crystals from the Erongo region of Namibia. This is a fabulous specimen comprised of 100% large and well defined fibrous crystals. It displays brilliantly in either landscape or portrait format as well as from either side. We have included a 1cm square yellow cube in the photographs to give you an idea of the size of this gorgeous specimen. It sits perfectly well on its own without the need for a stand but we will give you a brand new mineral stand ABSOLUTELY FREE, just in case you prefer to use one. We don't need to tell you how rare and sought after large, premium grade crystals of actinolite are, we have only a very few specimens of this quality which won't be around for long so if you're looking for a decent specimen... hurry and secure one while you can.

It is possible to buy cheaper actinolite specimens but not of this quality.. You get what you pay for when buying quality mineral specimens and our price for premium grade actinolite crystal specimens absolutely can't be matched :)

SOME ADDITIONAL INFORMATION ABOUT ACTINOLITE / TREMOLITE:
Actinolite and Tremolite are two very similar minerals that form a series with each other and essentially share the same chemical formula. Actinolite has a greater presence of iron over magnesium, whereas Tremolite has a greater presence of magnesium over iron. The green colour of actinolite is produced by the iron in its chemical structure. The amount of iron varies among specimens, causing different contrasts of green. More iron will give a specimen a darker colour. Actinolite sometimes occurs as thin, splintery inclusions inside quartz crystals. If the inclusions are parallel and dense, it will cause chatoyancy in the quartz.

Actinolite and tremolite share several recognized varieties. Mountain Leather, a thickly fibrous and leathery variety, has a silky lustre, a soft felt-like feel, and elastic fibres. Nephrite, another fibrous variety, is made up of tough, interlocking fibres, so dense that the fibres are not discernible. Translucent Nephrite with a uniform or interesting colour distribution that is extremely tough fits under the category of Jade. Actinolite and Tremolite both contain a form of asbestos which is made of movable and elastic fibres. Actinolite asbestos is less common; most forms are in fact Tremolite.