Description :

An exceptional, curated reference collection comprising twenty-five (25) individual raw mineral and crystal specimens. Spanning a diverse global geological spectrum, this group showcases a brilliant range of crystal habits, vibrant coloration, matrix compositions, and structural variations. It serves as an ideal comprehensive suite for advanced collectors, educational institutions, or geological study.A significant portion of the collection retains its highly desirable, historic handwritten and typed collection labels, mapping out classic, largely exhausted American and Canadian mining districts. The collection spans multiple mineral classes including rare native sulfides, delicate borates, heavy radioactive ores, and pristine crystalline silicates.

Highlighted Featured Specimens (With Historic Labels)

Millerite in Calcite (Keokuk, Iowa - Collected 1934): A stellar historical geode fragment featuring a rhombohedral cleavage of translucent, frosty Calcite beautifully preserving delicate, hair-like acicular inclusions of golden Millerite (noted on the vintage label as "Capillary Pyrite")

Orpiment with Realgar (Golconda, Nevada): A highly striking, vibrant specimen featuring a rich, saturated canary-yellow crust of microcrystalline Orpiment, beautifully accented by intergrown flecks of reddish-orange Realgar.

Prehnite (Paterson, New Jersey): A classic American locality specimen featuring a pale, mint-green to celadon-colored cluster of translucent, botryoidal Prehnite from the famous historical basalt quarries of New Jersey.

Cerussite "White Lead Ore" (Caledonia Mine): A superb cabinet piece showcasing prominent, interlocking reticulated networks of elongated, creamy-white Cerussite crystals nestled in a heavily mineralized, rust-brown matrix. Retains a detailed vintage typewriter label.

Uraninite (Great Bear Lake, N.W.T., Canada): A historic ore specimen of deep charcoal-grey to black Uraninite (pitchblende) clusters showing characteristic fractured, sub-metallic surfaces from a globally significant remote deposit

Priceite (Death Valley, California): An uncommon, stark white borate specimen exhibiting its characteristic chalky, dense, and microcrystalline "bone-like" aggregate habit from the historic Furnace Creek deposits.Stibiconite after Stibinite (Mercur, Utah): An exceptional geological pseudomorph featuring earthy, creamy-tan Stibiconite completely replacing a cluster of bladed Stibnite crystals while perfectly retaining the original columnar crystal habit.

Lepidolite (Keystone, South Dakota): A vibrant, sparkling cluster of lithium-rich mica showing a rich, lilac-to-purple coloration, complete with a charming vintage "25¢" dealer price marking on the antique paper label.

Dumortierite (Dehesa, California): A massive, crystalline fibrous cluster of lavender-purple Dumortierite intergrown with a lighter silicate matrix, hand-identified as a "Basic Al. Borosilicate".

Goethite (Piedmont, Alabama): A dense, dark iron ore specimen displaying a metallic to sub-lustrous, textured surface with fine crystalline seams and its chemical formula noted on a vintage paper label.Kyanite (West Virginia): A highly textured metamorphic rock matrix hosting elongated bladed crystals of pearly Kyanite with subtle blue-grey highlights.

Additional Reference Matrix Specimens Included in the Lot

Complementing the labeled specimens is a robust study suite of global mineralogy including:

Baryte on Matrix: A classic, collector-grade cluster of prominent, divergent blade-like Baryte crystals radiating out from a dark rock bed.

Malachite/Chrysocolla: displaying a vibrant, velvety green botryoidal pocket nestled within a highly weathered host matrix.

Fluorite/Smithsonite: Pale mint-green mass featuring sharp, angular cleavages and a translucent, vitreous luster.

Epidote/Pyroxene: Rugged, interlocking blocky crystal formations exhibiting an olive-to-pistachio green hue.

Vitreous Quartz/Feldspar & Selenite Shards: Displaying clean rhombohedral planar fractures and stark geometric transparency.

A rich assortment of metallic sulfides, volcanic matrices, and stratified metamorphic aggregatescompleting the 25-piece layout.