Microcline Baveno Twin
John Betts - Fine Minerals
Large white Microcline crystal twinned diagonally through
the middle as a Baveno twin. The twin plane
is visible in the prism and termination faces criss-crossing in alternating
dominance. Ex. John Geiges collection #840.
Little Tree Mine, Ramona District, San Diego County, California.
7.5 x 3.5 x 3.5 cm.