Schorl tourmaline in amphibole
SOLD
Schorl tourmaline in amphibole
- Sold
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- Availability
- Sold
- Size
- 5 x 2.5 x 2 cm - Miniature
- Formula
- NaFe2+3Al6(BO3)3Si6O18(OH)4 (RRUFF)
- Locality
- Sterling Hill mine, Ogdensburg, Sussex Co., New Jersey, United States
Black prismatic crystal to 2cm with a few smaller in dark amphilbole matrix.
Schorl
- Formula
- NaFe2+3Al6(BO3)3Si6O18(OH)4
- Crystal System
- Trigonal
- Crystal Habit
- Acicular, Prismatic, Striated
- Cleavage
- Indistinct, None, None
- Luster
- Vitreous (Glassy)
- Color
- black, brownish black, greenish black, bluish black
- Streak
- brown
- Class
- Trigonal - Ditrigonal Pyramidal
- Fracture
- Brittle - Conchoidal
- Hardness
- 7.5
Data courtesy of Webmineral.
- Collection
- Phillips Collection
- Mineralpedia
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- On Dakota Matrix
- Previously Sold Schorl
- On Dakota Matrix
- Other Available Schorl
- WebMineral
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- Mindat
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