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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Thomsonite-Ca from
Basalt quarry, Magheramorne, Glynn (Glynn Hill), Larne, County Antrim, Northern Ireland, UK


Locality type:Quarry
Classification
Species:Thomsonite-Ca
Formula:NaCa2[Al5Si5O20] · 6H2O
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Natrolite1
Data
Mineral Data:Click here to view Thomsonite-Ca data
Locality Data:Click here to view Basalt quarry, Magheramorne, Glynn (Glynn Hill), Larne, County Antrim, Northern Ireland, UK
Data Identifiers
Mindat Occurrence Record ID:19044
Long-form Identifier:1:3:19044:6
GUID (UUID V4):0
Nearest other occurrences of Thomsonite-Ca
15.5km (9.7 miles) ⓘBruslee quarry, Ballyclare, County Antrim, Northern Ireland, UK
15.7km (9.8 miles) ⓘGreen Road Quarry (Ballyclare Old Quarry), Ballyclare, County Antrim, Northern Ireland, UK
18.4km (11.4 miles) ⓘCarnmoney, County Antrim, Northern Ireland, UK
23.7km (14.7 miles) ⓘParkgate Quarry, Antrim, County Antrim, Northern Ireland, UK
26.9km (16.7 miles) ⓘScottstown Quarry (Cross Moorfield Quarry), Ballymena, County Antrim, Northern Ireland, UK
31.8km (19.7 miles) ⓘGlenariff Valley, Garron Plateau, County Antrim, Northern Ireland, UK
57.9km (36.0 miles) ⓘMoneymore Quarry, Maxwell Quarries, County Londonderry, Northern Ireland, UK
96.7km (60.1 miles) ⓘCnoc Rhaonastil Intrusion, Isle of Islay, Argyll and Bute, Scotland, UK
References
Artioli, Gilberto, Foy, Harry (1994) Gobbinsite from Magheramorne Quarry, Northern Ireland. Mineralogical Magazine, 58 (393) 615-620 doi:10.1180/minmag.1994.058.393.10
 
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