achiardita Mineral Data, minerology database

Mineral Reference Lookup for achiardita

This reference page contains mineralogic data for achiardita and folklore and metaphysical beliefs. If the mineral is an alternate naming of a more common name, the more common mineral's data is displayed below the list of synonyms.

Minerals matching achiardita in the database: Achiardita Dachiardita

Mineralogical Reference

achiardita

Mineral	Achiardita
Synonym	Dachiardite

Dachiardite (synonym)

Mineral	Dachiardite
Chemistry	(NaKCa 0 ·5) 4 (Al 4 Si 20 )O 48 ·18H 2 O
Color	Colourless
Transparency	Monoclinic
CrystalSystem	Monoclinic
Hardness	4 - 4½
IMAStatus	Approved
Discovered	1906
CellParameters	a = 18.03b = 7.52c = 10.2 β=104.46°
Ratio	a:b:c = 2.398 : 1 : 1.356
OpticalType	Biaxial (+)
RI	n α =1.488 - 1.494 n β =1.490 - 1.496 n
Birefringence	δ=0.006
SurfaceRelief	Moderate
TypeLocality	La Speranza ( Pisani s Quarry) San Piero in Campo Campo nell Elba Elba Island ( Isola d Elba) Livorno Province Tuscany Italy

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