Hematite

specimen number:
1052771

location:
Frizington, Cumbria, England, UK

description:
An absolutely beautiful example for this British classic. Mirror bright lustrous botryoidal kidney ore hematite specimen without matrix. This is in very good condition. The specimen was collected in the 19th century and at one time was part of the collection of Wilhelm Hoyer. In great condition all around. The specimen comes with an antique label as shown at the end of the video.

The Frizington mining district, situated in West Cumbria, England, was an internationally celebrated producer of exceptionally high-grade hematite iron ore and world-class mineral specimens. Geologically, the deposit consists of massive, irregular replacement bodies and fault-controlled vein systems hosted within Carboniferous-age Limestone formations, which are overlain by Permo-Triassic red sedimentary strata. Highly concentrated, iron-rich basinal fluids migrated along regional fault networks, dissolving the carbonate host rocks and precipitating dense, botryoidal masses of hematite, famously known as kidney ore, while creating vast open cavities that allowed the growth of spectacular, highly collectible mineral specimens, most notably lustrous blue and amber fluorite, clear double-terminated baryte, and iconic bar-binned twin calcite crystals. Historically, while shallow open-cut quarrying and iron smelting occurred intermittently from medieval times, large-scale industrial underground shaft mining boomed after 1850 to satisfy the immense demand of the British Industrial Revolution and local ironworks. Famous operations in the Frizington area, including the Parkside, Mowbray, and High House mines, operated under intense corporate development throughout the late nineteenth and early twentieth centuries. Due to the gradual exhaustion of the easily accessible ore bodies, extreme underground water pumping costs, and competition from cheaper global imports, production rapidly declined after World War I, leading to the permanent closure of all major industrial mining operations in the Frizington sector by the mid-1930s.

Wilhelm Hoyer was a notable nineteenth-century German engineer, educator, and avid mineral collector based in Hannover who compiled a highly systematic regional and international mineral collection. Geologically, Hoyer focused his personal collecting efforts on the diverse sedimentary, evaporite, and hydrothermal ore deposits of Lower Saxony and the Harz Mountains, amassing carefully documented representative suites of calcite, fluorite, gypsum, and various base-metal sulfides. Historically, his active collecting period spanned the mid-to-late 1800s while he served as a professor of mechanical engineering at the Technische Hochschule Hannover, during which time he maintained active exchanges with leading German mineralogists and commercial dealers to expand his cabinet. Following his death, his curated collection of several thousand meticulously labeled specimens was preserved intact when it was acquired by the major regional natural history museum in Hannover in the late nineteenth century, providing modern researchers with a clean historical record of European mineral localities before many of those historic localities were permanently closed or lost.

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