Fassaite (variety of Augite)
Current inventory:  0 gems
 

  
Fassaite is named after its discovery locality at Fassa Valley, Trento Province, Trentino-Alto Adige, Italy.

Discovery year unknown; IMA status: Not Valid (Discredited - a variety of Augite)

Chemistry

Chemical Formula:

(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)₂O₆

Calcium Sodium Magnesium Iron Aluminum Titanium Silicate

More Information

Fassaite is a variety of Augite.
For more information please see the Augite information page.
 

Synonyms:

Pyrogom
 

View mineral photos:

Fassaite Mineral Photos and Locations
 

Additional Information: 

Mindat.org (Fassaite)
Mindat.org (Augite)
Webmineral.com (Augite)
 

Fassaite is a variety of Augite with a low iron content and was originally reported from Fassa Valley, Trento Province, Trentino-Alto Adige, Italy. Fassaite is thought to be a contact mineral formed at high temperature on the interface between volcanic rocks and limestone. It is also reported in meteorites. Fassaite is found in colors of pale to bright to dark green and brown to greenish brown.

Distribution: In the Monzoni Mts, Fassa Valley, Trento Province, Trentino-Alto Adige, Italy; Pitigliano, Grosseto Province, Tuscany, Italy; Gilgit and Skardu Districts, Baltistan, Gilgit-Baltistan (Northern Areas), Pakistan; Úškrtová Valley, Hodruša - Hámre (Hodritsch), Žarnovica Co., Banská Bystrica Region, Slovakia; Marbella, Málaga, Andalusia, Spain.

Please see the Augite information page for more information.
 

  
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