Origin: St. Agnes, Cornwall, England
Sample size: 7 x 4 x 2 cm, fair dark crystals to 8 mm
Origin: St. Agnes, Cornwall, England
Sample size: 6 x 3 x 2 cm, fair dark crystals to 8 mm
Origin: Penzance, Cornwall, England
Sample size: 6 x 5 x 5 cm, crystals twinned, to 1.3 cm
Twinned crystal
Origin: Araca, Bolivia
Sample size: 2 cm
Cassiterite on
albite
matrix
Origin Tin Mountain mine, Custer Co., South Dakota, USA
Sample size: about 3 cm
3 mm black euhedral crystals in
lepidolite matrix. During the so-called "Tin Boom" in the Black Hills in
the late 1800's this stuff was called "Pepper Ore".
Origin: Etta mine, Custer Co., South Dakota, United States
Ex. Grenier Collection
Ex. Grenier Collection
Sample size: 4 x 2 x 2 cm
Origin: Yunnan Province, China
Sample size: 3 x 3 x 2 cm
Reddish brown (stained?) wood tin
Origin: Zacatecas, Mexico
Ex. Eaton Collection
Sample size: 4.5 x 1.5 x 1 cm
Cassiterite in
albite
Origin: White Cap Mine, Pennington Co., South Dakota, United States
Sample size: 9 x 7 x 3 cm
Cassiterite in
montebrasite
Origin: Tin Mountain Mine, Custer Co., South Dakota, United States
Ex. Grenier collection
Sample size: 7.5 x 3.5 x 2 cm
Cassiterite with light yellow, massive, earthy
varlamoffite
Origin: Hugo Mine, Keystone, South Dakota, United States
Ex. Grenier collection
Sample size: 7 x 5 x 3 cm
1 mm black crystals in vugs.
Origin: Cooks Kitchen mine, Camborne, Cornwall, England
Ex. Kidwell collection
Sample size: 5 x 4.5 x 3 cm
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