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 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
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
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
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 |