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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Tourmaline from
Meldon Aplite Quarry, Okehampton Hamlets, West Devon, Devon, England, UK


01143830017364258844401.jpg
Elbaite

Meldon Aplite Quarry, Okehampton Hamlets, West Devon, Devon, England, UK
08103850017271983394323.jpg
Elbaite, etc.

Meldon Aplite Quarry, Okehampton Hamlets, West Devon, Devon, England, UK
06976540017728519275591.jpg
Elbaite, etc.

Meldon Aplite Quarry, Okehampton Hamlets, West Devon, Devon, England, UK
07994400017364258841940.jpg
Elbaite, etc.

Meldon Aplite Quarry, Okehampton Hamlets, West Devon, Devon, England, UK
01143830017364258844401.jpg
Elbaite

Meldon Aplite Quarry, Okehampton Hamlets, West Devon, Devon, England, UK
00822420017364258858510.jpg
Elbaite, etc.

Meldon Aplite Quarry, Okehampton Hamlets, West Devon, Devon, England, UK
07922840017368766587155.jpg
Elbaite, etc.

Meldon Aplite Quarry, Okehampton Hamlets, West Devon, Devon, England, UK
07994400017364258841940.jpg
Elbaite, etc.

Meldon Aplite Quarry, Okehampton Hamlets, West Devon, Devon, England, UK
03727460017364258851584.jpg
Elbaite

Meldon Aplite Quarry, Okehampton Hamlets, West Devon, Devon, England, UK
08103850017271983394323.jpg
Elbaite, etc.

Meldon Aplite Quarry, Okehampton Hamlets, West Devon, Devon, England, UK
03576560017728519281241.jpg
Elbaite, etc.

Meldon Aplite Quarry, Okehampton Hamlets, West Devon, Devon, England, UK
00023110017364258867065.jpg
Elbaite, etc.

Meldon Aplite Quarry, Okehampton Hamlets, West Devon, Devon, England, UK
Locality type:Quarry
Classification
Species:'Tourmaline' (not an IMA approved species)
Formula:AD3G6(T6O18)(BO3)3X3Z
Colour:pink, green
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Fluorapatite1
Quartz1
Data
Mineral Data:Click here to view Tourmaline data
Locality Data:Click here to view Meldon Aplite Quarry, Okehampton Hamlets, West Devon, Devon, England, UK
Data Identifiers
Mindat Occurrence Record ID:19017
Long-form Identifier:1:3:19017:2
GUID (UUID V4):0
Nearest other occurrences of Tourmaline
0.6km (0.4 miles) ⓘMeldon Quarry, Okehampton Hamlets, West Devon, Devon, England, UK
4.0km (2.5 miles) ⓘTor Wood Mines, Sourton, West Devon, Devon, England, UK
6.3km (3.9 miles) ⓘIvy Tor Mine, Belstone, West Devon, Devon, England, UK
16.8km (10.4 miles) ⓘMerrivale Quarry, Whitchurch, West Devon, Devon, England, UK
17.2km (10.7 miles) ⓘEast Vitifer Mine (Hookney Mine; Kingsbarrow Mine; Great Devon Tincroft), Warren House, North Bovey, Teignbridge, Devon, England, UK
17.3km (10.7 miles) ⓘLittle Staple Tor, Whitchurch, West Devon, Devon, England, UK
18.4km (11.4 miles) ⓘFoggintor Quarry, Princetown, Dartmoor Forest, West Devon, Devon, England, UK
19.0km (11.8 miles) ⓘNorth Mine, Brimpts Tin Mines, Dartmoor Forest, West Devon, Devon, England, UK
20.3km (12.6 miles) ⓘBlack Tor Tin Pits, Princetown, Dartmoor Forest, West Devon, Devon, England, UK
23.1km (14.4 miles) ⓘMel Tor, Widecombe-in-the-Moor, Teignbridge, Devon, England, UK
References
McLintock, W. F. P. (1923) On the occurrence of petalite and pneumatolytic apatite in the Meldon aplite, Okehampton, Devonshire. Mineralogical Magazine and Journal of the Mineralogical Society, 20 (103). 140-150 doi:10.1180/minmag.1923.020.103.03
Knorring, Oleg von, Condliffe, Eric (1984) On the occurrence of niobium-tantalum and other rare-element minerals in the Meldon aplite, Devonshire. Mineralogical Magazine, 48 (348) 443-448 doi:10.1180/minmag.1984.048.348.16
johnblanchard.net (2021) http://johnblanchard.net/index.php/some-sites/226-meldon-aplite-quarry-sssi
 
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