Borate Minerals from the English
Zechstein at Boulby Mine, Cleveland
David I. Green
Max D. Freier
Some of the finest known specimens of the minerals boracite and hilgardite-10
have been collected from borate nodules in Zechstein evaporites at Boulby
Mine.
A pure mass of euhedral aquarmarine-blue
boracite crystals representative of the finest specimens from the recent
find. Specimen in the Max D. Freier collection, 65 x 40 mm, with individual
crystals to about 3 mm. Photo: David Green.
Book Reviews
Hey's Mineral Index: Mineral species, varieties and
synonyms
by Andrew M Clark (1993)
David I. Green
A Mineralogy of Wales
by Richard E Bevins (1994)
Mike Rothwell
Pigs and Ingots
by Tina Carr and Annemarie Schone (1993)
David I. Green
Phosphate Minerals of Victoria
by WD Birch and DA Henry (1993)
Jean Spence
British Geological Museums
by John R Nudds (1994)
David I Green
Agates from Ardownie Quarry
Simon M. Ingram
This recent discovery is undoubtedly the most important Scottish agate
find of this century. In addition to an abundance of agates of exceptional
size and quality, geodes lined with lustrous crystals of amethyst and
smoky quartz are not uncommon.
Agate from Ardownie Quarry.
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