October 2017 Premier Auction

Malachite is a bright green copper carbonate hydroxide mineral which occurs in many crystal habits and forms. This fantastic specimen features long (7

This attractive apophyllite specimen features well-formed, lustrous, transparent to translucent light green crystals that are blocky in shape with ste

Dioptase was first described from Altyn Tyube, the type locality for dioptase, late in the 18th century. Altyn Tyube translates as 'Golden Hill&...

Aegirine is a member of the clinopyroxene group of inosilicates and is a sodium iron silicate. Aegirine occurs as dark green, monoclinic, prismatic cr

Adamite is a zinc arsenate hydroxide mineral which typically occurs in the oxidized or weathered zone above zinc ore occurrences. Pure adamite is colo

The numerous, incredible azurite specimens produced since ore production started at the Milpillas Mine in 2006, have lead many mineral experts to proc

A superb, crystallized botryoidal crust of bright yellow Mimetite. Mimetite is a lead arsenate chloride mineral which forms as a secondary mineral in

A colorful, aesthetic specimen of amethyst quartz from the famous deposit near Las Vigas, Veracruz, Mexico. The matrix of this specimen is covered wit

Azurite is a deep blue copper carbonate mineral produced by weathering of copper ore deposits. This is an exceptional quality Tsumeb Mine azurite spec

A little jewel of a specimen! The piece features two highly lustrous, gem-clear, light blue aquamarine crystals associated with black "schorl&q...

An unusually greenish-blue aquamarine crystal cluster on feldspar matrix from Erongo Mountain, Namibia. Typically the aquamarine found in the many gem

Cerussite is a favorite species of mineral collectors. It is a lead carbonate mineral and is an important ore of lead. Cerussite crystallizes in the o

A spectacular specimen of the lead carbonate mineral Cerussite. Cerussite is popular with collectors worldwide as it frequently produces well formed,

Beautiful glassy, translucent dioptase crystals on a milky quartz matrix. The dioptase crystals are pristine, a fine emerald green color and are super

Dioptase is an rich emerald-green to bluish-green, copper cyclosilicate mineral. Dioptase is a relatively uncommon mineral species found in arid regio

Dioptase is a popular collectible mineral species because of its vibrant emerald green color, transparency, and strong luster. This is an attractive p

An attractive mineral specimen featuring dark olive-green cube-octahedral fluorite crystals in association with "booklets" of yellowish mu...

Mined since around 1920, the Okorusu Mine is an open pit fluorite mine. The deposit is part of an alkaline igneous-carbonatite ring-dike complex where

A superb, large, single color-zoned crystal of quartz from the world famous deposit in the Goboboseb Mountains of Namibia. The quartz crystal features

An attractive quartz variety amethyst specimen featuring a single, stout, prismatic, purple-colored quartz crystal on a basalt rock matrix which is fu