Gearksutite

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Navidad Mine, Abasolo, Rodeo, Rodeo Municipality, Durango, Mexico

Item-No.: MIN0425

Price: 480.00 EUR

Navidad Mine, Abasolo, Rodeo, Rodeo Municipality, Durango, Mexico

Item-No.: MIN0427

Price: 490.00 EUR

Navidad Mine, Abasolo, Rodeo, Rodeo Municipality, Durango, Mexico

Item-No.: MIN0428

Price: 450.00 EUR

Navidad Mine, Abasolo, Rodeo, Rodeo Municipality, Durango, Mexico

Item-No.: MIN0429

Price: 198.00 EUR

Synonyms:	Evigtokite, Gearksite, Paragearksutite
Classification:	Halides
Chemical formula:	CaAl(OH)F₄·H₂O
Crystal system:	Triclinic
Density (g/cm³):	2.768 measured, 2.771 calculated
Cleavage:	Imperfect/fair on {1-10}
Hardness (Mohs):	2
Colour:	Colorless, grey-white, white
Lustre:	Dull
Streak:	white
Fluorescence:	yellowish-white in long wave UV (365nm) , in short ware UV (254nm) red
Transparency:	Transparent, translucent
Type locality:	Ivigtut cryolite deposit, Ivittuut (Ivigtut), Arsuk Fjord, Sermersooq, Greenland, Denmark