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.
![]() |
Name: Larderellite RRUFF ID: R130392 Ideal Chemistry: (NH4)B5O7(OH)2·H2O Locality: Larderello Lagoon, Tuscany, Italy Source: Bob Jenkins (capsule), Rock Currier (rock piece) [view label] Owner: RRUFF Description: Soft, vitreous, opaque white botryoidal crust, in part altered on surface to off-white tiny granules of ammonioborite Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
|
Mineral Group: [ Larderellite (1) ] |
RAMAN SPECTRUM | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
|
BROAD SCAN WITH SPECTRAL ARTIFACTS | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
|
POWDER DIFFRACTION | |||||||
---|---|---|---|---|---|---|---|
RRUFF ID: | R130392.9 | ||||||
Sample Description: | Single crystal, powder profile is calculated | ||||||
Cell Refinement Output: |
a: 9.465(2)Å b: 7.625(2)Å c: 11.647(2)Å alpha: 90° beta: 96.94(1)° gamma: 90° Volume: 834.4(4)Å3 Crystal System: monoclinic |
||||||
|
|
REFERENCES for Larderellite | |
---|---|
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] |
|
Bechi E (1854) Analysis of several native borates: larderellite, (new species), American Journal of Science, 67, 129-130 [view file] |
|
Clark J R, Christ C L (1959) Studies of borate minerals (VII): X-Ray studies of ammonioborite, larderellite, and the potassium and ammonium pentaborate tetrahydrates, American Mineralogist, 44, 1150-1158 [view file] |
|
Merlino S, Sartori F (1969) The crystal structure of larderellite, NH4B5O7(OH)2·H2O, Acta Crystallographica, B25, 2264-2270 |
|
Anderson Y E, Bubnova R S, Filatov S K, Polyakova I G, Krzhizhanovskaya M G (2005) Thermal behavior of larderellite, NH4[B5O7(OH)2]·H2O, Zapiski Rossiiskogo Mineralogicheskogo Obshchetstva, 134, issue 1 103-113 [view file] |
|
|