Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Jasper from
Wheal Maudlin (Wheal Mawdlin; Wheal Magdalen), Lostwithiel, Cornwall, England, UK


Locality type:Mine
Classification
Type:Jasper
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Jasper data
Locality Data:Click here to view Wheal Maudlin (Wheal Mawdlin; Wheal Magdalen), Lostwithiel, Cornwall, England, UK
Data Identifiers
Mindat Occurrence Record ID:784875
Long-form Identifier:1:3:784875:9
GUID (UUID V4):0
Nearest other occurrences of Jasper
1.7km (1.1 miles) ⓘRestormel Royal Iron Mine (Trinity Mine), Lostwithiel, Cornwall, England, UK
9.6km (6.0 miles) ⓘGunheath China Clay Pit, Stenalees, Treverbyn, Cornwall, England, UK
19.2km (11.9 miles) ⓘWheal Trugo, Trebudannon, St Columb Major, Cornwall, England, UK
20.4km (12.7 miles) ⓘWheal Phoenix, Phoenix United Mine, Minions, Linkinhorne, Cornwall, England, UK
27.2km (16.9 miles) ⓘPencrebar Wood Mine (Pencrebar Mine; Creva Wood Mine), Callington, Cornwall, England, UK
33.2km (20.6 miles) ⓘGreystone Quarry, Lezant, Cornwall, England, UK
39.8km (24.7 miles) ⓘWheal Unity, Gwennap, Cornwall, England, UK
45.1km (28.0 miles) ⓘSouth Wheal Basset, Carnkie, Carn Brea, Cornwall, England, UK
47.8km (29.7 miles) ⓘNorth Roskear Mine, North Roskear, Camborne, Cornwall, England, UK
49.0km (30.4 miles) ⓘLee Moor China Clay Pit, Shaugh Prior, South Hams, Devon, England, UK
References
Hogg, Thomas (1825) A Manual of Mineralogy - In which is shown how much Cornwall contributes to the illustration of the science. W. Polybank High Cross, Truro.
Hall, Townshend M. (1868) The Mineralogist's Directory: or, a guide to the Principal Mineral Localities in the United Kingdom of Great Britain and Ireland. Edward Stanford.
 
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