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Earth lab datasite

Pectolite
Silicate fibrous aggregate
calcium sodium hydrosilicate
Ca2 Na H [Si O3]3
Scale bar = 1 centimetre
cleavage: Perfect
crystal system: Triclinic
hardness 4.5 - 5.0
relative density 2.7 - 2.9
Ratho quarry, near Edinburgh
24 D 6