Acer palmatum, although there are more than 100 species of maple worldwide, only one species (Acer campestre) is native to the UK.

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Earth lab datasite

Caledonite
Carbonate on galena
hydrous lead copper sulphate carbonate
Pb5 Cu2 (CO3) (SO4)2 (OH)6
Scale bar = 1 centimetre
cleavage: 1 perfect
crystal system: Orthorhombic
hardness:  2.5 - 3.0
relative density:  5.7 - 5.8
Leadhills, Lanarkshire
24 A 6