Charlesite

Charlesiet, Charlesit, Charlesita, チャールズ石, 查理石


Commonly known      rarer (so called collectors stones)      very rare (rarities)      relatively rare organic material


Formula: Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12·26H2O
Mineral class: sulfates
Crystal system: hexagonal
Mohs scale: 2.5
Density (g/cm3): 1.77
Refractive index: 1.475 - 1.492
Cleavage: perfect
Colors: colorless, white, yellow, pink
Transparency: transparent
Luster: vitreous - dull (depends on weathering)
Fluorescence: SW UV: light violet or light green, LW UV: ditto but weaker
Pleochroism: -
Largest crystal: 1 cm?
Deposits: Japan, Norway, Slovakia, South Africa, USA
Discovery: 1983
1st Description: 1983 (Baum, Dunn, Leavens, Peacor)
Name: in honor of the U.S. mineralogist Dr. Charles Palache (1869-1954)

Charlesite

Size: 0.88 x 0.74 x 0.45 cm
Weight: 1.34 ct
Origin: Italy

Photo by kind permission of © www.freakingcat.com

Charlesite Mineral

Size: 0.2 x 0.2 cm

Origin: Franklin Mine / Sussex County / New Jersey / USA

Photo by kind permission of © Van King
Charlesite Mineral

Charlesite Mineral on Calcite

Size: 4.4 x 2.9 x 1.7 cm

Origin: N'Chwaning II Mine / Hotazel / Northern Cape Prov. / South Africa

Photo by kind permission of © www.irocks.com
Charlesite Mineral

Charlesite Mineral

Size: 4.0 x 3.0 x 1.7 cm

Origin: N'Chwaning II Mine / Hotazel / Northern Cape Prov. / South Africa

Photo by kind permission of © www.irocks.com
Charlesite Mineral

Charlesite Mineral

Size: 2.4 x 2.2 x 1.1 cm

Origin: Wessels Mine / Hotazel / Northern Cape Prov. / South Africa

Photo by kind permission of © www.kqminerals.com
Charlesite Mineral
Charlesite

Size: 0.7 x 0.4 cm
Weight: 0.13 ct
Origin: N'Chwaning II Mine / Hotazel / Northern Cape Prov. / South Africa

Photo by kind permission of © www.kox-gems.com

Charlesite

Size: 1.61 x 1.60 x 0.88 cm
Weight: 7.15 ct
Origin: USA

Photo by kind permission of © www.freakingcat.com

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