Specimen Gold 3742

$210.00 In stock Weight: 28.2 Grams
Length: 5 cm
Width: 2.5 cm
Height: 1.5 cm


San Juan Co. CO

Rocky Mountain Gold!!!!   Crystalline Gold specimen from the historic Idarado Mine, Ouray Co. Colorado. Gold shows on most faces and a saw cut, as ragged, disseminated grains, and irregular forms.  Gold shows bright luster, and a brassy-yellow color. Has a 10 % Sphalerite and pyrite grains in the matrix. Rare trace pink Rhodochrosite also present with the Quartz. (untreated with any reagents)  A Specific Gravity determination indicates 4.1 Grams Gold. ( may be off somewhat due to Sulfides)