455g Massive Radiating Grass Green EPIDOTE & Grossular

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455g Massive Radiating Grass Green EPIDOTE & Grossular Description Dimension 80mmX70mmX50mm/3.2"X2.8"X2.0" Weight 455g Collected from Altay Mine, Xinjiang Province, China Mineral Instruction Epidote is a structurally complex mineral having both single silicate tetrahedrons, SiO4, and double silicate tetrahedrons, Si2O7. The formula of epidote could be expressed in a such a way so as to reflect this organization; Ca2(Al, Fe)Al2O(SiO4)(Si2O7)(OH). The two aluminums represent the parallel chains of AlO6 and AlO4(OH)2 octahedra that are the heart of the epidote structure. The silicate groups and extra ions connect the chains together. Since the chains are parallel, the crystals tend to be prismatic. The chains are arranged in parallel planes and the perfect cleavage breaks the bonds between these planes. Epidote, while not general known for exceptional crystals can produce some magnificent specimens. Its unique green color which is often described as "pistachio", is quite striking in well colored specimens. Shipping & Handing Shipping Method Global Airmail Shipping and handing fee US $29 ( including professional packing) Shipping Time 10-25 days Discount Description We ship to worldwide ,and offer Combine Shipping if customers purchase more than two items within 14 days,the SHIPPING DISCOUNT is based on the items' respective read more

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