THE ROWHURST TONSTEIN, NORTH STAFFORDSHIRE, AND THE OCCURRENCE OF CRANDALLITE
- 1 May 1966
- journal article
- Published by Geological Society of London in Proceedings of the Yorkshire Geological and Polytechnic Society
- Vol. 35 (3) , 421-427
- https://doi.org/10.1144/pygs.35.3.421
Abstract
Summary: The Rowhurst Tonstein occurs in a split of the Rowhurst Coal (Middle Coal Measures) at Red Street Colliery near Kidsgrove, north Staffordshire, the two probably being equivalent to the High Main Tonstein and High Main Coal of Derbyshire. The Rowhurst Tonstein consists of crypto- to micro-crystalline crandallite (mean refractive index 1.624), kaolinite, carbonaceous material, minor apatite, pyrite, quartz and illite. X-ray powder data were obtained from diffractometer traces of the crandallite, and unit cell dimensions ( a 7.007 ± 0.003 Å, c 16.30 ± 0.05 Å) from the spacings d 224̄0 and d 101̄7 respectively. The mineral parageneses are indeterminable, but it seems likely that apatite, kaolinite and the crandallite were co-precipitated from soil colloids derived from peaty, coal-forming plants.This publication has 4 references indexed in Scilit:
- New Occurrences of Tonsteins in England and WalesGeological Magazine, 1964
- THE MICROBIOLOGY, MINERALOGY AND GENESIS OF A TONSTEINProceedings of the Yorkshire Geological and Polytechnic Society, 1964
- Tonstein Bands in the Coalfields of the East MidlandsGeological Magazine, 1963
- Goyazite and florencite from two African carbonatitesMineralogical Magazine and Journal of the Mineralogical Society, 1962