xtir CALCITE, La Sirena mine, Guanajuato, Guanajuato, Mexico, 9.5 x 7.5 x 2.5 cm, | |
Undamaged specimen of terminated and double terminated scalenohedral crystals of Calcite on matrix. Minor Pyrite is present with some Pyrite actually included in the Calcite. Calcite is also some what lustrous. Calcite crystal surfaces are not completely smooth so that the luster is somewhat diminished. |