Locality type:

Island

Classification

Species:

'Biotite' (not an IMA approved species)

Formula:

K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂

Confirmation

Validity:

Believed Valid

Data

Mineral Data:

Click here to view Biotite data

Locality Data:

Click here to view Isle of Lundy, Torridge, Devon, England, UK

Data Identifiers

Mindat Occurrence Record ID:

1417132

Long-form Identifier:

1:3:1417132:3

GUID (UUID V4):

d66ed231-93c5-4dc5-9188-82849fcdb9da

References

Edmunds, E.A., Williams, B.J. & Taylor, R.T. 1979. Geology of Bideford and Lundy Island. Geological Survey of Great Britain, Memoirs. Institute of Geological Sciences, London.

Mussett, A. E., Dagley, P., & Eckford, M. (1976). The British Tertiary igneous province: palaeomagnetism and ages of dykes, Lundy Island, Bristol Channel. Geophysical Journal International, 46(3), 595-603. doi.org/10.1111/j.1365-246X.1976.tb01250.x

Mussett, A. E., Dagley, P., & Skelhorn, R. R. (1988). Time and duration of activity in the British Tertiary Igneous Province. Geological Society, London, Special Publications, 39(1), 337-348. doi.org/10.1144/GSL.SP.1988.039.01.29

Thorpe, R. S., Tindle, A. G., & Gledhill, A. (1990). The petrology and origin of the Tertiary Lundy granite (Bristol Channel, UK). Journal of Petrology, 31(6), 1379-1406.

Thorpe, R. S., & Tindle, A. G. (1992). Petrology and petrogenesis of a tertiary bimodal dolerite‐peralkaline/subalkaline trachyte/rhyolite dyke association from Lundy, Bristol Channel, UK. Geological Journal, 27(2), 101-117. doi.org/10.1002/gj.3350270202

Reference Search (possible matching items)

	(1998, September) National Reference Collection - Specimen Numbers 1 to 2000. British Micromount Society	Catalog/List
	r eached th e 2000 miles ton e somewhat in adnnce of the Gregorian Calendar. This catalogue has been published...age members to use th e collection . The success of the collection to date is t estament to Roy Starkey...donated specimens. and to Max W irth th e Curator of th e Collection. Th e Society acknowledges and thanks...thanks them all . In his articl e Roy published a list of 100 speetcs as a suggestion fo r donations to start...donate it CONTEN TS Section Contents Page Index of Spe cime ns In accession numbe r orde r 2 Index
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	*(1994, Winter) Collection Dispersal Winter 1994. Sam Weller (Mineralogist)*	Catalog/List
	process of reducing the size of my personal collection. I have decided to reduce the target size of my final...collector may recognise the inclusion in this list of approximately 100 specimens that remained unsold...continuously upgrading his collection. A feature of the specimens offered is that as they are all ex...collection and in many cases ex a sequence of collections, many of the specimens represent material no longer...available and all have passed the qualifying test of being selected for collection! As far as can be determined

Biotite from Isle of Lundy, Torridge, Devon, England, UK

Biotite from
Isle of Lundy, Torridge, Devon, England, UK