Druse of quartz crystals where we can enjoy a very defined and remarkable huge size Japan Law twin. The quartz Japan twin is the only where two single crystals are visible as individuals. Both crystals keep an angle of 84 degrees 33 minutes, with two parallel prism faces. An exceptional representative from a classic American mine, well-known for its twinned quartz specimens. THE MAIN CRYSTAL IS: 5.3 x 4.8 x 1.2 cm.