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Gyrolite

Type Locality
The Storr, Portree, Trotternish, Isle of Skye, North West Highlands (Inverness-shire), Scotland, UK
Mineral Data
NaCa16Si23AlO60(OH)8·14H2O
Strunz: 
9.EE.30
Physical Properties
Streak: 
White
Hardness: 
2.5
Tenacity: 
brittle
Synonyms
Synonyms: 
Centrallasite
Photos