Corsi Collection of Decorative Stones

view of stone 286

Corsi 286, approx. 145 x 73 x 40 mm, © Oxford University Museum of Natural History

OUMNH Number: 286  
Name and quarry location: Derbyshire fossil marble, from One Ash Grange, near Monyash, Derbyshire, England; perhaps from the nearby Brecks or Bricks quarry.  
Geological description: Carboniferous Limestone; Lower Carboniferous bioturbated fossiliferous micrite with bryozoan algae, brachiopods and other skeletal debris. It is extensively stylolitised; the stylolites having sparry hematitic fills.  
Comments: This sample is one of the Derbyshire stones presented to Corsi by William Cavendish, 6th Duke of Devonshire. It is probably from Brecks or Bricks quarry, north of Monyash on Flagg Road, Derbyshire. ‘Oneash’ refers to One Ash Grange, Upper Lathkilldale, near Monyash, where lead was mined in the 1890s and perhaps earlier. It is possible that the limestone had also been worked in this area. It is close to Ricklow quarry, long worked for building and ornamental stone (see no. 284).  
References: Hewitt (2001); Lee (1888) 31-32; Price (2007) 170; Rogers (2008) 64-66; Watson (1916) 13-18  
Further information:

Corsi's classification: Class 1. Marbles; Section 3. Lumachellas; ii. Italian lumachellas  
Corsi's text: 87.54 Persichino di Oneash presso Monyash in Inghilterra  

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