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IRIDESCENT NATROLITE ZEOLITE CABOCHON-PEBBLE RUSSIA
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IRIDESCENT NATROLITE ZEOLITE CABOCHON-PEBBLE RUSSIA
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IRIDESCENT NATROLITE ZEOLITE CABOCHON-PEBBLE RUSSIA Nice polished PEBBLE of the SNOW WHITE IRIDESCENT NATROLITE from Kola Peninsula, Hibina, Northern Russia, SIZE559x32x11 mm Convert mm to inches WEIGHT 26 gram Natrolite is a tectosilicate mineral species belonging to the zeolite group. It is a hydrated sodium and aluminium silicate with the formula Na 2Al 2Si 3O 10 · 2H 2O. It was named natrolite by Martin Heinrich Klaproth in 1803. Needle stone or needle-zeolite are other names, alluding to the common acicular habit of the crystals, which are often very slender and are aggregated in divergent tufts. Larger crystals have the form of a square prism terminated by a low pyramid, the prism angle being nearly a right angle. The crystals are tetragonal in appearance, though actually orthorhombic. T are perfect cleavages parallel to the faces of the prism. The mineral also often occurs in compact fibrous aggregates, the fibers having a divergent or radial arrangement. Natrolite is readily distinguished From other fibrous zeolites by its optical characteristics. Between crossed nicols the fibers extinguish parallel to their length, and they do not show an optic figure in convergent polarized light. Natrolite is usually white or colorless, but sometimes reddish or yellowish. The luster is vitreous, or, in finely fibrous specimens, silky. The specific gravity is 2.2, and the hardness is 5.5. The mineral is readily fusible, melting in a candle-flame to which it imparts a yellow color owing to the presence of sodium. It is decomposed by hydrochloric acid with separation of gelatinous silica. Natrolite occurs with other zeolites in the amygdaloidal cavities of basaltic igneous rocks. The best specimens are the diverging groups of white prismatic crystals found in compact basalt at the Puy-deMarman, Puy-de Dome, France. The largest crystals are those from Brevig in Norway. The walls of cavities in the basalt of the Giants Causeway, in Co. Antrim, are frequently encrusted with slender needles of natrolite, and similar material is found abundantly in the volcanic rocks (basalt and phonolite) of Salesel, Aussig and several other places in the north of Bohemia. Several varieties of natrolite have been distinguished by special names. Fargite is a red natrolite from Glenfarg in Perthshire. Bergmannite, or Spreustein, is an impure variety which has resulted by the alteration of other minerals, chiefly sodalite, in the augite syenite of southern Norway. HEALING PROPERTIES OF THE ZEOLITES : Zeolites are a family of minerals and related minerals, including apophyllite, chabazite, stilbite, heulandite, goosecreekite, laumonite, natrolite and others. Technically, zeolites are framework silicates with exchangeable cations and some of the minerals considered zeolites metaphysically do not strictly fit the technical criteria, but are like "cousins" with some metaphysical properties that are the same. In particular, zeolites are said to be extraordinarily helpful for absorbing and removing toxins, whether it be in the environment or in a person. In a person, this metaphysical aspect would make zeolites excellent healing stones, and they are often used in conjunction with Reiki. Zeolites are also said to be useful for agriculture or gardening, especially when they are buried in the field or garden. Zeolites are said to remove negative energy and bring in happiness w the negative energy was. Mystical healing lore says that zeolites are helpful for goiter, addictions, detoxification, and bloating. Each individual type of zeolite also has its own unique metaphysical properties. SH&H TO WORLDWIDE : We combine shipping of the items bought within one week and than we send them from Finland on Monday(once a week!) . To calculate the total shipping price of 1 or several items look at the price list or send us an email and we will send a Paypal invoice with the correct shipping amount TH... 
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