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Tourmaline from
Hemerdon Tungsten Mine (Drakelands Mine), Sparkwell, South Hams, Devon, England, UK


Locality type:Mine
Classification
Species:'Tourmaline' (not an IMA approved species)
Formula:AD3G6(T6O18)(BO3)3X3Z
Comments:Forms as a major mineral in veins to 10 of mts long. Free grown crystals are seldom more than 1cm long. The colour is mostly black in the hand specimen, whiel under the micrscope the colour is seen to be much more varied from almost colourless to blue and brown and black.
Quality for species:Poor for species, only of interest for locality collectors. (#)
Abundance at site:Very common
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Quartz4
Scorodite4
Hematite1
Data
Mineral Data:Click here to view Tourmaline data
Locality Data:Click here to view Hemerdon Tungsten Mine (Drakelands Mine), Sparkwell, South Hams, Devon, England, UK
Photo GalleryView Gallery (3 photos)
Data Identifiers
Mindat Occurrence Record ID:11179
Long-form Identifier:1:3:11179:5
GUID (UUID V4):0
Nearest other occurrences of Tourmaline
0.9km (0.5 miles) ⓘBottle Hill Mine, Sparkwell, South Hams, Devon, England, UK
6.1km (3.8 miles) ⓘGreat Trowlesworthy Tor, Shaugh Prior, South Hams, Devon, England, UK
10.0km (6.2 miles) ⓘEylesbarrow Mine (Wheal Ruth), Dartmoor Forest, West Devon, Devon, England, UK
12.1km (7.5 miles) ⓘFurzehill Mine (Furzehill Wood Mine), Horrabridge, West Devon, Devon, England, UK
13.3km (8.3 miles) ⓘBlack Tor Tin Pits, Princetown, Dartmoor Forest, West Devon, Devon, England, UK
14.7km (9.1 miles) ⓘHooten Wheals (Hexworthy Mine), Hexworthy, Dartmoor Forest, West Devon, Devon, England, UK
15.2km (9.4 miles) ⓘFoggintor Quarry, Princetown, Dartmoor Forest, West Devon, Devon, England, UK
17.0km (10.5 miles) ⓘLittle Staple Tor, Whitchurch, West Devon, Devon, England, UK
17.1km (10.6 miles) ⓘMerrivale Quarry, Whitchurch, West Devon, Devon, England, UK
18.4km (11.5 miles) ⓘRussell United Mine (incl. Wheal Russell), Gulworthy, West Devon, Devon, England, UK
References
 
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