Armstrongite
SOLD
Armstrongite
- Sold
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- Availability
- Sold
- Size
- 2 x 1 x 1 cm - Thumbnail
- Formula
- CaZrSi6O15·2.5H2O (RRUFF)
- Locality
- Khan Bogdo Massif, Gobi Desert, Mongolia
Light pink cleaved crystal grains to 7mm. Excellent and rich specimen.
Armstrongite
- Formula
- CaZrSi6O15·2.5H2O
- Crystal System
- Monoclinic
- Crystal Habit
- Bladed, Spherical, Aggregates
- Cleavage
- Perfect, Distinct, None
- Luster
- Vitreous (Glassy)
- Color
- light brown, reddish brown
- Streak
- brownish white
- Class
- Monoclinic - Sphenoidal
- Fracture
- Brittle
- Hardness
- 4.5
Data courtesy of Webmineral.
- Collection
- William & Anne Cook Collection
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- On Dakota Matrix
- Previously Sold Armstrongite
- On Dakota Matrix
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