Specimens

Choice intergrown crystal groups, many with striated pyritohedral crystal faces. Perfect for classroom study. Average size: 1" x 1". Peru.

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

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.

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.

Classic staurolite crystal twins in schistose matrix with well-defined crystal form. Average size: 2" x 3". Russia.

Remarkable display and study piece.