Staurolite
Origin: Coray, Finistere, Brittany, France
Sample size: 3.5 x 2.2 x 1.2 cm
Penetration twin, known as "fairy crosses"
Origin: Fannin County, Georgia, U.S.A.
Sample size: 2.3 x 1.2 x 0.6 cm
Origin: Chesterfield, Hampshire Co., Massachusetts, U.S.A.
Ex. Richard Hauck collection
Sample size: 7.7 x 5.1 x 1.7 cm
Oblique twin
Origin: Mineral Bluff, Fannin Co., Georgia, U.S.A.
Sample size: 3.0 x 1.9 x 1.7 cm
Penetration twins
Origin: Taos County, New Mexico, U.S.A.
sample size: 3.1 x 3.0 x 1.9 cm
Penetration twin
Origin: Patrick Co., Virginia, United States
Ex. Pellman collection
Sample size: 2 x 1.5 cm
Origin: Keivy Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region,
Russia
Ex. Scott Williams collection
Sample size: 5 x 7 x 2 cm
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