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Calcite (pseudo Ulexite)
Calcite (pseudo Ulexite) Calcite (pseudo Ulexite) Calcite (pseudo Ulexite) Calcite (pseudo Ulexite)
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Calcite (pseudo Ulexite) (Ref: MMH-19)

U.S. Borax Mine, Kramer Borate deposit, Boron, Kramer District, Kern Co., California, USA
33mm x 19mm x 16mm
minID: 5MT-XAW
$75
Lustrous, blocky crystal of yellow Calcite to 19 x 11 x 6 mm, and spires made up of flat blades of light-yellow Calcite, make up this specimen. The blocky Calcite shows pronounced striations and tiny acicular features on its surface. Small amounts of Ulexite are also present. This is an excellent and rare example of a near complete replacement of Ulexite by Calcite from Boron.

ex. Marty Houhoulis (Denver) collection

Data last checked on 1st Jul 2022Buy now from Bob Griffis Minerals

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See Also

Calcite (pseudo Ulexite) with Ulexite
U.S. Borax Mine, Kramer Borate deposit, Boron, Kramer District, Kern Co., California, USA
$70
32mm x 25mm x 20mm
Calcite
Reward Mine, Russ District, Inyo Co., California, USA
$100
44mm x 28mm x 25mm
Calcite
Reward Mine, Russ District, Inyo Co., California, USA
$100
61mm x 49mm x 36mm
Calcite on Chrysocolla
Reward Mine, Russ District, Inyo Co., California, USA
$50
61mm x 34mm x 20mm
Calcite
Reward Mine, Russ District, Inyo Co., California, USA
$35
27mm x 25mm x 23mm
Vanadinite on Calcite
Grey Horse Mine, Riverside District, Dripping Spring Mtns, Pinal Co., Arizona, USA
$98 *
37mm x 35mm x 32mm
Calcite Sweetwater
Sweetwater Mine, Viburnum Trend District, Reynolds Co., Missouri, USA
$110 *
57mm x 42mm x 40mm
Calcite Sweetwater
Sweetwater Mine, Viburnum Trend District, Reynolds Co., Missouri, USA
$49 *
77mm x 47mm x 38mm
Calcite
Cyprus Bagdad Copper Mine, Bagdad, Eureka District, Yavapai Co., Arizona, USA
$135
114mm x 78mm x 51mm
Colemanite
U.S. Borax Mine, Kramer Borate deposit, Boron, Kramer District, Kern Co., California, USA
$75
75mm x 76mm x 38mm
Quartz with Calcite
Bog Mine, American Fork Mining District, Wasatch Mountains, Utah Co., Utah, USA
$150
60mm x 50mm x 30mm
Calcite (fluorescent)
Himalaya Mine, Mesa Grande District, San Diego Co., California, USA
$300
50mm x 50mm x 30mm
Ulexite
U.S. Borax Mine, Kramer Borate deposit, Boron, Kramer District, Kern Co., California, USA
$50
63mm x 58mm x 40mm
Ulexite
U.S. Borax Mine, Kramer Borate deposit, Boron, Kramer District, Kern Co., California, USA
$50
124mm x 78mm x 57mm
Ulexite
U.S. Borax Mine, Kramer Borate deposit, Boron, Kramer District, Kern Co., California, USA
$50
75mm x 53mm x 39mm
* price is an approximate conversion and may not be accurate.

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