Augite with Biotite
SOLD
Augite with Biotite
- Sold
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- Availability
- Sold
- Size
- 2.5 x 4 x 2 cm - Miniature
- Formula
- (Ca,Mg,Fe)2(Si,Al)2O6 (RRUFF)
- Locality
- Mt. Vesuvius, Somma Complex, Napoli, Campania, Italy
- Tagged
- antique
Piece of volcanic rock covered with thin brown micaceous crystals of possible Biotite to 2mm and tiny equant brown possible Augite to <1mm.
The old label accompanying this piece is handwritten and somewhat illegible and it's German, but my best guess is Augite. The label is from Wilhelm Maucher (Maucherite), a prominet early 20th century mineral dealer from Germany. Also, the address Schellingstr 73 on the label dates it post 1909, but no later than 1944 since the building was destroyed by allied bombing.
Antique Specimen
Augite
- Formula
- (Ca,Mg,Fe)2(Si,Al)2O6
- Crystal System
- Monoclinic
- Crystal Habit
- Massive - Fibrous, Columnar, Granular
- Cleavage
- Perfect, Indistinct, None
- Luster
- Vitreous - Resinous
- Color
- brown green, green, light brown, dark brown, black
- Streak
- greenish gray
- Class
- Monoclinic - Prismatic
- Fracture
- Brittle - Conchoidal
- Hardness
- 5-6.5
Data courtesy of Webmineral.
- Collection
- Phillips Collection
- Special Info
- Antique Specimen
W. Maucher label circa 1909-1944
- Mineralpedia
- View Augite
- On Dakota Matrix
- Previously Sold Augite
- On Dakota Matrix
- Other Available Augite
- WebMineral
- View Augite
- Mindat
- View Augite
