This Specimen has been sold.
7.4" Polished Black Moonstone Bowl - Madagascar
This is a polished black moonstone bowl/dish, mined and crafted in Madagascar. Moonstone gets its name from a visual effect, or chatoyance, caused by light diffraction within the micro-crystalline structure. Moonstone is composed of two feldspar varieties, orthoclase and albite. The two species are intermingled. Then, as the newly formed mineral cools, the inter-growth of orthoclase and albite separates into stacked, alternating layers.
Feldspar var. Orthoclase/Albite
7.4 x 5 x 3"