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This page provides mineralogical data about Chestermanite.
Classification of Chestermanite
|IMA status:||Approved 1986|
|Strunz 8th edition ID:||5/G.04-70|
|Nickel-Strunz 10th (pending) edition ID:||6.AB.40|
6 : BORATES
A : Monoborates
B : BO3, with additional anions; 1(D) + OH, etc.
|Dana 8th edition ID:||22.214.171.124|
24 : ANHYDROUS BORATES
2 : A2BO2[XO3]
|Hey's CIM Ref.:||9.8.4|
9 : Borates
8 : Borates of Fe
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Type Occurrence of Chestermanite
|Type Locality:||Unnamed Skarn occurrence , Lakeshore, Fresno Co., California, USA|
|Year of Discovery:||1986|
Physical Properties of Chestermanite
Crystallography of Chestermanite
|Cell Parameters:||a = 18.53Å, b = 12.27Å, c = 6.04Å|
|Ratio:||a:b:c = 1.51 : 1 : 0.492|
|Unit Cell Volume:||V 1,373.27 Å³ (Calculated from Unit Cell)|
Optical Data of Chestermanite
|RI values:||nα = 1.753 nβ = 1.763 nγ = 1.791|
|2V:||Measured: 63° , Calculated: 64°|
|Maximum Birefringence:||δ = 0.038|
Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
|Dispersion:||distinct to strong|
Chemical Properties of Chestermanite
|Simplified for copy/paste:||Mg2(Fe3+,Mn3+,Al,Sb3+)(BO3)O2|
|Essential elements:||B, Fe, Mg, O|
|All elements listed in formula:||Al, B, Fe, Mg, Mn, O, Sb|
Relationship of Chestermanite to other Species
|Member of:||Orthopinakiolite Group|
|Other Members of Group:|
|Related Minerals - Nickel-Strunz Grouping):|
|Related Minerals - Hey's Index Grouping:|
Other Names for Chestermanite
|Health Warning:||No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.|
References for Chestermanite
Erd R C, Foord E E (1988): Chestermanite, a new member of the ludwigite-pinakiolite group from Fresno County, California. The Canadian Mineralogist, 26, 911-916. [Abs. in American Mineralogist (1990): 75: 431.]
Alfredsson V, Bovin J O, Norrestam R, Terasaki O (1991): The structure of the mineral chestermanite, Mg2.25Al0.16Fe0.43Ti0.02Sb0.13O2BO3. A combined single-crystal X-ray and HREM study. Acta Chemica Scandinavica 45, 797-804.
Grew, E.S., and Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).
Internet Links for Chestermanite
Localities for Chestermanite
The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
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Locality Updated: Louisville meteorite, Louisville, Jefferson Co., Kentucky, USAFrom Lon Clay Hill, 25th Oct 2014 15:09:23