Stunning ice blue HEMIMORPHITE botryoidal crust cluster

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? boo-quartz ?? Stunning ice blue HEMIMORPHITE botryoidal crust cluster ? Location: yunnan Province,China Dimension: 1.7" x 0.7" x 0.2" Net Weight: 9 grams (50g after careful packing) Description ?? ! perfectly crystals ! ! a rare curiousity for the collector ! ! what a magnificent display item for the home or office!top quality ! ? Chemistry: Pb5(PO4)3Cl Class: phosphates Hardness: 3.5 - 4 Specific Gravity: approximately 7.0+ (very heavy for translucent minerals) Here is a perfect botryoidal ice blue Hemimorphite crystals perch on the iron gossan matrix.The Hemimorphite crystals display the “typical” chatoyant pearly luster that is a characteristic of the species. The color and quality of the Hemimorphite are superb.TOP GRADE MINT CONDITION Hemimorphite is found in a variety of colors including blue-green, green, white, colorless, brown and yellow. Discovered in 1853, Hemimorphite was originally named 'Calamine'. However, as the name had already been used for another mineral, it was renamed Hemimorphite after its hemimorphic crystal structure. 'Hemi' means 'Half', while 'Morph' means 'Shape'.Hemimorphic crystals produce a different termination at each end of the crystal; thus the term hemimorphic or half shape. Other minerals with hemimorphic crystal structure are Tourmaline, Greenockite, Wurzite and Zincite. However, none of these show the complete structure as found in Hemimorphite. Hemimorphite is formed from Hydrated Zinc Silicate Hydroxide (Zn4 Si2 O7 (OH)2 -H2O). With its Zinc concentration,Hemimorphite is commonly used as a source of minor ore of zinc. Hemimorphite has a hardness of approximately 5 on the Moh’s Scale of Hardness and an average Specific Gravity of 3.4.Hemimorphite occurs as veins and beds in calcareous rocks. It is commonly found associated with Hydrozincite, Limonite, Aurichalcite, Calcite and Smithsonite. First discovered in Romania, notable occurrences of Hemimorphite include: Santa Eulalia and Mapimi, Mexico; New Mexico and New Jersey, USA; England and monly found in two distinct crystal forms, Hemimorphite is noted for its magnificent "sprays" and clusters of very glassy, clear or white, thin, bladed crystals which are prominently displayed in nearly every mineral museum in the world. The other form produces a blue to blue-green botryoidal crust that resembles Smithsonite or Prehnite. For a serious collector both forms are a must in their mineral ? Size and weight : we have close the metric system for our sizes and weights .Basically 1 lb is about equal 453 grams. one inch is about 2.54cm or 25.4mm. ?? Shipping: the parcel will be delivered from China(international delivery),so it take longer than domestic handling.and we will usually send your purchase within 3 business day of receiving cleared payment. Our company local in a small village , the items should be shipped to big cities (HK, shanghai and so on ), and from there ,items to you again !so it may delay one week than the big cities to ship you the product immediately. Hope to get your understanding ! As my regret , will offer you a free gift for the delay of the delivery ,please excuse ! it needs time to ship and the duration on its way to you is out of control. What under our control is that we will ensure ship the item within certain biz days as described in item listing. and it is estimated to arrive in 25 days to USA/45 days to Europe.and it take longer sometimes(55/USA and 75/Europe days). as we all know that International shipping requires more complicated shipping procedures, such as both countries customs, transit stations etc., it will probably take longer time for your items to arrive at the final destination. Much Appreciate for your understanding on this uncontrollable matter. Therefore, please DON’T leave us 1, 2, 3 or 4-Detailed Seller Ratings on Shipping Time which equaling to negative feedback. we offer 2 shipping methods: our default shipping metho... read more

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