Boralsilite R140759


 Name: Boralsilite
RRUFF ID: R140759
Ideal Chemistry: Al16B6O30(Si2O7)
Locality: Larsemann Hills, Prydz Bay, Ingrid Christensen Coast, Princess Elizabeth Land, Eastern Antarctica, Antarctica
Source: Edward S. Grew 121102A [view label]
Owner: RRUFF
Description: Radiating fibrous bundles, associated with tourmaline and quartz. A portion of the material from the original study by Grew et al (2008)
Status: The identification of this mineral has been confirmed only by single crystal X-ray diffraction.
POWDER DIFFRACTION 
RRUFF ID: R140759.9
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 14.781(2)Å    b: 5.571(1)Å    c: 15.076(3)Å
alpha: 90°    beta: 92.03(1)°    gamma: 90°   Volume: 1240.6(2)Å3    Crystal System: monoclinic
  File Type Information Close
Calculated diffraction file.

  File Type Information Close
Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

DOWNLOADS:

DIF File
X-ray Data (XY - RAW) View Graph
RRUFF File
X Min:    X Max:    X Sort:
REFERENCES for Boralsilite

American Mineralogist Crystal Structure Database Record: [view record]

Grew E S, McGee J J, Yates M G, Peacor D R, Rouse R C, Huijsmans J P P, Shearer C K, Weidenbeck M, Thost D E, Su S (1998) Boralsilite (Al16B6Si2O37): a new mineral related to sillimanite from pegmatites in granulite-facies rocks, American Mineralogist, 83, 638-651   [view file]

Peacor D R, Rouse R C, Grew E S (1999) Crystal structure of boralsilite and its relation to a family of boroaluminosilicates, sillimanite, and andalusite, American Mineralogist, 84, 1152-1161   [view file]

Fischer R X, Kahlenberg V, Voll D, MacKenzie K J D, Smith M E, Schnetger B, Brumsack H-J, Schneider H (2008) Crystal structure of synthetic Al4B2O9: A member of the mullite family closely related to boralsilite, American Mineralogist, 93, 918-927   [view file]

Grew E S, Graetsch H A, Pöter B, Yates M G, Buick I, Bernhardt H-J, Schreyer W, Werding G, Carson C J, Clarke G L (2008) Boralsilite, Al16B6Si2O37, and "boron-mullite:" compositional variations and associated phases in experiment and nature, American Mineralogist, 93, 283-299   [view file]

Cempírek J, Grew E S, Kampf A R, Ma C, Novák M, Gadas P, Škoda R, Galiová M V, Pezzotta F, Groat L A, Krivovichev S V (2016) Vránaite, ideally Al16B4Si4O38, a new mineral related to boralsilite, Al16B6Si2O37, from the Manjaka pegmatite, Sahatany Valley, Madagascar, American Mineralogist, 101, 2108-2117   [view file]