Cassiterite

$350.00

$40.00 shipping
Seller offers an extended return window of up to 30 days
Ships from USA

Crystal ClassicsFeatured

Tucson, Arizona, USA

7,579 for sale·132 sold

We seldom see good crystals of Cassiterite from the tin-tungsten deposit at Kr'sno in the Karlovy Vary Region of the Czech Republic, so this part-stellate repeated twin is a superb find from a recently purchased collection. Cassiterite, a tin oxide, here forms roughly half of a sixling twin, with one whole and two-part arms of the sixling remaining. The valleys between each of the three limbs are formed by the sharply defined re-entrant angles of the repeated twinned-pairs. The coal-black faces are smooth with a bright reflective metallic lustre and in the exposed base can be seen small inclusions of milky Quartz. A splendid twinned Cassiterite from the old Kr'sno Sn-W deposit.