Description
An excellent stepped, cascading cluster of rare Witherite crystals from very close to its type locality (underground the two mines are connected). As is the case with many of these specimens from the Admiralty Flats there is surface alteration to barite which leaves the surface of the cluster with a frosted effect as it is covered with microcrystals of Barite - which can be seen under magnification. The back of the cluster is free of this, so the underlying colour of the Witherite can be seen. It varies from clear to colourless through to a pale honey colour. There is also a little matrix of grey altered limestone still adhering. These hard to get specimens are world famous English classics & highly sought after. It is from the Admiralty Flats, 2nd Sun Vein, Nentsberry Haggs Mine, Nenthead, Alston Moor, UK It measures 70x65x28mm & weighs 180g Witherite (or Barium Carbonate) is part of the Aragonite group & was first described by William Withering, an 18th century English physician & naturalist. The type locality (Brownley Hill Mine) is of course in the Alston Moor district & is linked underground to the Nentsberry Haggs Mine. Witherite has also been known as Barolite, Viterite & Aerated Barytes. Most interestingly is the fact that it is one of only a few minerals species that are always Twinned. Whilst the Alston Moor locations are the most famous in the world it notably occurs in Hardin County, Illinois. Some excellent crystals came from Cave-in-Rock & the Minerva Mine at the heart of the Illinois - Kentucky Fluorspar district. ORDERING INFORMATION: New Discounts: We have a new discount system so the more you spend then the more you save ! To get the discount use these Promo Codes at checkout: 20% Discount if you spend 150 Euro's - Use Promo Code: SPEND150SAVE20PERC 30% Discount if you spend 300 Euro's - Use Promo Code: SPEND300SAVE30PERC 40% Discount if you spend 500 Euro's - Use Promo Code: SPEND500SAVE40PERC Please note that only one promo code or discount deal can be used at a time, but you can choose which one is best for you for any order. Shipping: All orders are posted by the equivalent of Priority Mail with a tracking number & are dispatched in 3 working days or less. Most orders ship with Slovenija Post although some heavier items can ship with a courier. Delivery Times: Standard Postage within the EU should take 3-7 days & to the UK around 7 days. Standard Postage to the USA & the rest of the world generally takes around 10 days. Delivery times are APPROxIMATE & outside of our control. in particular customs delays are possible. The tracking will show data from Slovenija Post & then the postal carrier in your country but not in between the two. Therefore, it does not show whilst the package is being processed by customs, only once it is released to your national carrier. Packaging: We have safely shipped over 35,000 orders worldwide over the years with virtually no damage. Whilst we will recycle packaging materials where possible, the
