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|Name:||In honor of Harrison Preston Gower (1890–1967), Mining Manager, U.S. Borax and Chemical Company, for his assistance to scientific studies of Death Valley borate deposits.|
This page provides mineralogical data about Gowerite.
Classification of Gowerite
|Strunz 8th edition ID:||5/K.05-20|
|Nickel-Strunz 10th (pending) edition ID:||6.EC.10|
6 : BORATES
E : Pentaborates
C : Phyllo-pentaborates
|Dana 8th edition ID:||22.214.171.124|
26 : HYDRATED BORATES CONTAINING HYDROXYL OR HALOGEN
5 : Pentaborates
|Hey's CIM Ref.:||9.3.13|
9 : Borates
3 : Borates of Ca and Sr
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Type Occurrence of Gowerite
|Type Locality:||Hard Scramble claim, Ryan, Furnace Creek District (Furnace Creek Borate District; Death Valley Area Borate Deposits; Ryan area), Inyo Co., California, USA|
|Year of Discovery:||1959|
Physical Properties of Gowerite
Crystallography of Gowerite
|Cell Parameters:||a = 11.03Å, b = 16.4Å, c = 6.57Å|
β = 90.93°
|Ratio:||a:b:c = 0.673 : 1 : 0.401|
|Unit Cell Volume:||V 1,188.30 Å³ (Calculated from Unit Cell)|
Optical Data of Gowerite
|RI values:||nα = 1.484 nβ = 1.501 nγ = 1.550|
|Maximum Birefringence:||δ = 0.066|
Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
|Dispersion:||r > v to r < v strong|
Chemical Properties of Gowerite
|Simplified for copy/paste:||Ca[B5O8(OH)][B(OH)3]·3H2O|
|Essential elements:||B, Ca, H, O|
|All elements listed in formula:||B, Ca, H, O|
Relationship of Gowerite to other Species
|Related Minerals - Nickel-Strunz Grouping):|
|Related Minerals - Hey's Index Grouping:|
Other Names for Gowerite
|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 Gowerite
American Mineralogist (1959): 44: 911-919.
American Mineralogist (1960): 45: 230.
Konnert, J.A., J.R. Clark & C.L. Christ (1972), Gowerite, CaB5O8(OH)•B(OH)3•3H2O: crystal structure and comparison with related borates: American Mineralogist: 57: 381-396.
Mineralogical Magazine (1962): 33: 260.
Grew, E.S., and Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).
Internet Links for Gowerite
Localities for Gowerite
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.