Detached Chimney at Sw639323, Nancegollan Mine or Florence United Tin Mine is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 26 August 1987. Chimney.

Detached Chimney at Sw639323, Nancegollan Mine or Florence United Tin Mine

WRENN ID
silver-groin-candle
Grade
II
Local Planning Authority
Cornwall
Constituency
St Ives MP: Andrew George (LD)
Country
England
Date first listed
26 August 1987
Type
Chimney
Address
Detached Chimney at Sw639323, Nancegollan Mine or Florence United Tin Mine, Crowan
OS grid reference
SW 639 323
Coordinates
50.14404, -5.30475
Source
Historic England listing

Also on this page: flood risk · radon risk · weather exposure · detailed attributes ↓

Description

This is a detached chimney that served the beam engine house at Nancegollan Mine, also known as Florence United Tin Mine. It dates from the early to mid-19th century and was heightened around the 1860s. The chimney is constructed of granite rubble and features a roll moulded dressed granite collar, with a brick upper stage that has a moulded brick cornice. The collar was reused at a higher level when the chimney was raised. The chimney is round in plan and tapers in both stages. It is a complete detached chimney and is noted for its particularly fine granite collar.

Local climate

Detached Chimney at Sw639323, Nancegollan Mine or Florence United Tin Mine receives an average of 880 mm of rain a year. This makes it wetter than 65% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 87% of listed buildings.

It experiences an average of 5 freeze-thaw cycles a year, fewer than 97% of listed buildings. Of these, 2 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.3°C per decade since 1991.

Averages for 1991–2020; temperature trend 1991–2025. Figures describe the wider area (a grid cell of roughly 10 km), not the individual site. Contains modified Copernicus Climate Change Service information 2026.

More on this building

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