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Alstonite - Brownley Hill Mine

Informations

Reference List

Luca Bindi; Andrew C. Roberts; Cristian Biagioni: The crystal structure of alstonite, BaCa(CO3)2: an extraordinary example of ‘hidden’ complex twinning in large single crystals. Mineralogical Magazine Vol. 84, Nr. 5 (2020) S. 699-704.

Collectors Summary

Chemical Formula BaCa(CO3)2
Color farblos, weiß, gräulich, cremfarben, rosa, usw.
Streak color weiß
Lustre Glasglanz
Hardness (Mohs) 4.00 - 4.50
Solubility +++ verdünnte Säuren
Crystal System trigonal, P31m

UK/England/Cumbria Co./Eden, District/Alston Moor, Parish/Nent Valley/Nenthead/Brownley Hill Mine

Alstonite (3 Pictures) aus UK/England/Cumbria Co./Eden, District/Alston Moor, Parish/Nent Valley/Nenthead/Brownley Hill Mine

Alstonit
Views (File:
1359660839
): 1329
Alstonit
Skalenoedrische farblose Kristalle, mehrfach Doppelender, Bildbreite: 12,9 mm, Fundort: Brownley Hill Mine, Alston Moor District, North Pennines, Cumbria, England, UK.
Copyright: Hannes Osterhammer; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A011621, Donator: Manfred Seitz
Location: UK/England/Cumbria Co./Eden, District/Alston Moor, Parish/Nent Valley/Nenthead/Brownley Hill Mine
Mineral: Alstonite
Image: 1359660839
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Alstonit (SNr: A011621)

Skalenoedrische farblose Kristalle, mehrfach Doppelender, Bildbreite: 12,9 mm, Fundort: Brownley Hill Mine, Alston Moor District, North Pennines, Cumbria, England, UK.

Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2013-01-31
Alstonit
Views (File:
1271434640
): 1192
Alstonit
Bildbreite: 3 mm, Fundort: Brownley Hill Mine, Alston Moor District, North Pennines, Cumbria, England, UK.
Copyright: Richard De Nul; Contribution: thdun5
Location: UK/England/Cumbria Co./Eden, District/Alston Moor, Parish/Nent Valley/Nenthead/Brownley Hill Mine
Mineral: Alstonite
Image: 1271434640
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Alstonit

Bildbreite: 3 mm, Fundort: Brownley Hill Mine, Alston Moor District, North Pennines, Cumbria, England, UK.

Copyright: Richard De Nul
Contribution: thdun5 2010-04-16
Alstonit auf Calcit
Views (File:
1110934103
): 964
Alstonit auf Calcit
Kristallgröße: 11 mm; Fundort: Brownley Hill Mine, Alston Moor District, North Pennines, Cumbria, England, UK
Copyright: Peter Haas; Contribution: Mineralienatlas
Collection: Peter Haas
Location: UK/England/Cumbria Co./Eden, District/Alston Moor, Parish/Nent Valley/Nenthead/Brownley Hill Mine
Mineral: Alstonite
Image: 1110934103
Rating: 6 (votes: 1)
License: Usage for Mineralienatlas project only
Alstonit auf Calcit

Kristallgröße: 11 mm; Fundort: Brownley Hill Mine, Alston Moor District, North Pennines, Cumbria, England, UK

Collection: Peter Haas
Copyright: Peter Haas
Contribution: Mineralienatlas 2005-03-16

You find additional specimen at the Geolitho Museum