Check the listing for details. PINOLITH SLAB EXQUISITE PATTERN 4.8 X 4.3 X .47 APPEARS SOLID. Condition: New. Listed at 67.00 USD. GORGEOUS PINOLITH SLAB COLLECTORS OR CAB. APPEARS TO BE SOLID. 4.8 X 4.3 X .47 VERY THICK. STUNNING PATTERN AND BRIGHT COLORS. PICTURES ARE SHOWN WET. Pinolite, also known as Pinolith, Pinolithstein, or Märbelstein, is an extremely rare stone consisting of Howlite, Dolomite and Graphite. It forms when Howlite (Magnesite) nodules settle in layers of Graphite and Dolomite before becoming encased and frozen in time. This mineral has a very unique chemical makeup and was first discovered in 1873 in the Lower Tauern mountain range in Austria. However it was until 2018 that there was only one known locality where Pinolite was found (Austria) but that is not the case anymore. Pinolite was extensively mined by Germany and the Axis troops during WWII for its heavy Manganese content. This metal was essential for iron and steel production, which was needed to produce weapons, tanks, trains, planes, ships, and submarines. Once the war came to completion and Germany surrendered, mining operations continued up until 1991 when the land was finally sold. It's estimated that between 1904 and 1991, 5.5 million tons of Pinolite was extracted from the Lower Tauern mountain range. Most of this material was melted down, making the current pieces of Pinolith today that much more valuable. As of 2013, new owners have started operating the mine and extraction of this beautiful mineral has commenced once again.