Gold on
quartz and unidentified gray metallic minerals
Origin: Crown Mines, Johannesburg, South Africa
Sample size: 3.5 x 2.8 x 2.2 cm (top), 5.2 x 3 x 1.7 cm (2nd row), 4 x 3 x 2.5
cm (3rd row), 4.5 x 2.8 x 2.7 cm (4th row), 4.5 x 3.4 x 2.6 cm (5th row), 4.2
x 3.3 x 1.7 cm (6th row), 3.9 x 3.2 x 2 cm (7th row), 4 x 2.5 x 2.5 cm
(8th/bottom row)
Gold on
quartz
Origin: Eagle's Nest Mine, Placer County, California, USA
Sample size: 1.8 x 1.2 x 0.3 cm (top), 2.7 x 2.2 x 1 cm (2nd/bottom row)
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