Important Update News

The RRUFF Project is being updated to improve its interface and content. The beta version of the update is accessible to the public at RRUFF.net. New data is only being added to the beta site. Please note that it is in development, and some components are not functional. Existing RRUFF.info links will resolve to the new site after RRUFF.net is officially released.

We are grateful to NASA for the funding of this effort.

Brushite R070554
Name: Brushite
RRUFF ID: R070554
Ideal Chemistry: Ca(PO3OH)·2H2O
Locality: Biogenic
Source: Henry J. Sun [view label]
Owner: RRUFF
Description: Colorless platy crystals
Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction.
Mineral Group: [ Gypsum (12) ]
CHEMISTRY 
RRUFF ID: R070554.2
Sample Description: Microprobe Fragment
RAMAN SPECTRUM 
RRUFF ID:
Sample Description: Unoriented sample
DOWNLOADS:

  To download sample data,
  please select a specific
  orientation angle.
Direction of polarization of laser relative to fiducial mark:
X Min:    X Max:    X Sort:
BROAD SCAN WITH SPECTRAL ARTIFACTS
RRUFF ID: R070554
Wavelength:
Sample Description: Unoriented sample
Instrument settings: Thermo Almega XR 532nm @ 100% of 150mW
DOWNLOADS:

Raman Data (RAW) View Graph
RRUFF File
POWDER DIFFRACTION 
RRUFF ID: R070554
Sample Description: Single crystal, powder profile is calculated
Cell Refinement Output: a: 5.815(2)Å    b: 15.196(6)Å    c: 6.362(2)Å
alpha: 90°    beta: 118.54(1)°    gamma: 90°   Volume: 493.9(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 Brushite

American Mineralogist Crystal Structure Database Record: [view record]

Anthony J W, Bideaux R A, Bladh K W, and Nichols M C (1990) Handbook of Mineralogy, Mineral Data Publishing, Tucson Arizona, USA, by permission of the Mineralogical Society of America. [view file]

Shepard C U (1856) Five new mineral species, American Journal of Science and Arts, 22, 96-99   [view file]

Dana J D (1865) On the crystallization of brushite, American Journal of Science and Arts, 39, 45-46   [view file]

Moore G E (1865) On brushite, a new mineral occurring in phosphatic guano, American Journal of Science and Arts, 39, 43-44   [view file]

Frondel C (1943) Mineralogy of calcium phosphates in insular phosphate rock, American Mineralogist, 28, 215-232   [view file]

Murray J W, Dietrich R V (1956) Brushite and taranakite from Pig Hole Cave, Giles County, Virginia, American Mineralogist, 41, 616-626   [view file]

Fiore S, Lavanio R (1991) Brushite, hydroxylapatite, and taranakite from Apulian caves (southern Italy): New mineralogical data, American Mineralogist, 76, 1722-1727   [view file]

Schofield P F, Knight K S, van der Houwen J A M, Valsami-Jones E (2004) The role of hydrogen bonding in the thermal expansion and dehydration of brushite, di-calcium phosphate dihydrate, Physics and Chemistry of Minerals, 31, 606-624

Madsen H E L (2008) Optical properties of synthetic crystals of brushite (CaHPO42 * H2O), Journal of Crystal Growth, 310, 617–623   [view file]