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Slide_no: Q00622
Photo_Number: P2200441
Category: Mineral/Chemical
Common: Monchiquite intrusive in ORS
Mounters_Surname: Evens
Mounters_Initials: E.D.
Where_Collected: N. face of quarry Great House Golden Hill Mon. Chepstow Usk Road
Date_Collected: Saturday, July 16, 1955
Date_Mounted: Monday, October 01, 1956
Mounting_Method: Transmitted
Mountant: Xylol balsam
Slide_Type: Standard - with paper label
Ringing: yes
Comments:

Monchiquite: A lamprophyre composed of olivine, pyroxene, & usually mica or amphibole phenocrysts embedded in a glass or analcime groundmass. .ORS = Old Red Sandstone

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