Sandstone slab, large Hyalite This statuesque piece of black

This statuesque piece of black tourmaline

Approx size: 285g

If you look closely the gray-appearing surface is covered with criss-crossing dark green crystals

The galena has formed a small flat square tabular crystal coated in overgrowth

This piece has thick epidote growth with crystals stacked parallel like a closed fan

Sandstone slab, large Hyalite This statuesque piece of blackApprox size: 10 5 8 x 7 5 8" (12mm thick) Approx weight: 1367g (3 lb) The display side of the slab is polished; the reverse is unfinished and may have saw marks, uneven parts, or paler color. This flat polished slab of picture sandstone is made from Arizona Sierra sandstone sourced from central Arizona. Sandstone is a sedimentary rock composed of sand compacted and cemented together through geological processes, giving it a grainy texture. Sandstone