"Freeze-Dried Specimens"

Beautiful, violet-pink cleavage books of this uncommon lithium mica.

Calcite is a translucent calcium carbonate mineral, mohs hardness 3.

Beautiful deep green, prismatic, crystalline spray.

Hardened natural cement of calcium carbonate that binds other material such as gravel, sand, clay, and silt.

Sharp, brown, twinned, orthorhombic, ³/₈– ¹/₂".

Deep purple, cubic crystal cluster.

Beautiful, blue, hexagonal, sapphire crystals. Average size: 3/8". Madagascar.

Polished banded slices with colorful translucence.

China

Deep, rich, black, prismatic tourmaline crystals with excellent crystal form and triangular terminations.

Distinctive cut and polished geode halves with agate rims and drusy crystal linings. Average size: 1 1/2–2" diameter. Utah.

Utah

Choice yellow-brown, globular to botryoidal crystal groups of this lead arsenate mineral. A secondary mineral in lead deposits forming a series with pyromorphite and vanadinite. Average size: 1" x 1" to 1 1/2" x 1 1/2". Mexico.

Sparkling ¹/₂" single cubic crystal in 1 x 2" matrix. Spain.

Sharp, clear to white, single-terminated, tetragonal, ³/₄–1 ¹/₂". India.