NATURAL LARGE SMOKY CRYSTAL QUARTZ POINT NOT POLISHED COLOMBIA 17LB UNIQUE PIECE

Description: 100% NATURAL ~ 17 LB LARGE SMOKY CRYSTAL QUARTZ POINT, NATURAL SHAPE, NOT POLISHED FROM HUILA - COLOMBIA. 10,5” LONG, UNIQUE PIECE!!! Weight: 17 Lb. or 8.000 GramsCarat Weight: 40.000 Ct. Dimensions: 26,6 cm x 20,3 cm x 11,4 cm / 10,5" x 8,0" x 4,5" approx. Location: Huila - Colombia It is a variety of Quartz A smoky-gray, brown to black variety of quartz that owes its color to gamma irradiation and the presence of traces of aluminum built into its crystal lattice (Griffiths et al, 1954; O'Brien, 1955). The irradiation causes the aluminum Al(+3) atoms that replace Si(+4) in the lattice in a [AlO4]- group to transfer an electron to a neighboring monovalent cation (often Li+) and form a [AlO4/Metal0]0 color center (O'Brien, 1955). The (German) name Morion is used for black smoky quartz. Smoky quartz is dichroic (from darker yellow-brown to lighter red-brown) when viewed in polarized light. The photo to the left shows the change of color in a smoky quartz crystal that is rotated in front of an LCD display that serves as a source of polarized light. The color of smoky quartz is sensitive to heat and will pale at temperatures above 200-300°C or by prolonged exposure to UV light. This loss of color can be reverted by gamma irradiation of the crystals. Smoky quartz can be found in many different environments but is most characteristic for pockets in igneous rocks and pegmatites. The quartz grains in granites and related rocks are often smoky. Smoky quartz shows many different habits and crystallographic forms, but needle-like crystals of smoky color are not known. Colombian Quartz is considered unique for its brilliance and long crystals. I work directly with local inhabitants of Huila and personally import these minerals. I am a geologist, explorer, collector and seller of gems, minerals and jewels. I select the best quality pieces CONTACT USWe can be contacted at any time through eBay messages if you have any questions, comments or product requests. We will respond to you within 24 hours and do our best to help you out! We encourage our customers to contact us with any questions or concerns! We'd like to be sure you are completely satisfied with your purchase.PAYMENTPLEASE REMEMBER OUR BUSINESS THRIVES BASED ON YOUR FEEDBACK, PLEASE BE KIND, THANK YOU!SHIPPINGWORLDWIDE SHIPPING THROUGH EBAY´S GLOBAL SHIPPING PROGRAM. HANDLING TIME: 1 BUSINESS DAY.DISCLAIMERNOTE: PLEASE BE SURE TO VERIFY YOUR SHIPPING ADDRESS IN YOUR ACCOUNT INFORMATION BEFORE PAYING, WE ARE NOT RESPONSIBLE FOR WRONG INFORMATION.

Price: 749 USD

Location: Tampa, Florida

End Time: 2025-01-03T21:38:37.000Z

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