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Scawtite from
Scawt Hill, Larne, County Antrim, Northern Ireland, UK


03989170017363260978498.jpg
Scawtite, etc.

Scawt Hill, Larne, County Antrim, Northern Ireland, UK
08159400017272740151195.jpg
Scawtite

Scawt Hill, Larne, County Antrim, Northern Ireland, UK
08186910017272004603197.jpg
Scawtite, etc.

Scawt Hill, Larne, County Antrim, Northern Ireland, UK
00397120017272004622867.jpg
Scawtite, etc.

Scawt Hill, Larne, County Antrim, Northern Ireland, UK
01090900017363260977941.jpg
Scawtite, etc.

Scawt Hill, Larne, County Antrim, Northern Ireland, UK
03038710017369008548332.jpg
Scawtite

Scawt Hill, Larne, County Antrim, Northern Ireland, UK
03955350017369008553835.jpg
Scawtite, etc.

Scawt Hill, Larne, County Antrim, Northern Ireland, UK
04429770017362484732708.jpg
Scawtite, etc.

Scawt Hill, Larne, County Antrim, Northern Ireland, UK
03989170017363260978498.jpg
Scawtite, etc.

Scawt Hill, Larne, County Antrim, Northern Ireland, UK
08159400017272740151195.jpg
Scawtite

Scawt Hill, Larne, County Antrim, Northern Ireland, UK
08186910017272004603197.jpg
Scawtite, etc.

Scawt Hill, Larne, County Antrim, Northern Ireland, UK
00397120017272004622867.jpg
Scawtite, etc.

Scawt Hill, Larne, County Antrim, Northern Ireland, UK
Locality type:Volcanic Plug
Classification
Species:Scawtite
Formula:Ca7(Si3O9)2CO3 · 2H2O
Chemical Analyses:
Oxide wt%:
1
CaO46.40 %
SiO234.20 %
CO218.00 %
Total:98.60 %
Sample references:
1 -
Tilley, C. E. (1930) Scawtite, a new mineral from Scawt Hill, Co. Antrim. Mineralogical Magazine and Journal of the Mineralogical Society, 22 (128) 222-224 doi:10.1180/minmag.1930.022.128.03
Habit:Tilley & Hey (1930): plates flattened in the plane of the principal cleavage. Frequently these form subparallel or slightly divergent clusters. Owing to mutual interference and intergrowth with the surrounding minerals no well-defined crystals can be isolated. The largest individuals met with do not exceed 1.5 mm. in length.
Colour:colourless with vitreous lustre
Confirmation
Validity:Valid - Type Locality
Associated Minerals Based on Photo Data:
Tobermorite5
Spinel4
Gehlenite3
Larnite3
Augite1
Spurrite1
Data
Mineral Data:Click here to view Scawtite data
Locality Data:Click here to view Scawt Hill, Larne, County Antrim, Northern Ireland, UK
Photo GalleryView Gallery (3 photos)
Data Identifiers
Mindat Occurrence Record ID:106059
Long-form Identifier:1:3:106059:1
GUID (UUID V4):0
Nearest other occurrences of Scawtite
14.0km (8.7 miles) ⓘCarneal, Glenoe, Larne, County Antrim, Northern Ireland, UK
References
Tilley, C. E. (1930) Scawtite, a new mineral from Scawt Hill, Co. Antrim. Mineralogical Magazine and Journal of the Mineralogical Society, 22 (128) 222-224 doi:10.1180/minmag.1930.022.128.03
Murdoch, Joseph (1955) Scawtite from Crestmore, California. American Mineralogist, 40 (5-6). 505-509 (referring to scawtite from the type locality (Tilley and Hey, 1930))
Harker, R. I. (1965) Scawtite and its synthesis. Mineralogical Magazine and Journal of the Mineralogical Society, 34 (268). 232-236 doi:10.1180/minmag.1965.034.268.18
 
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