Adamantine Minerals - Authentic Minerals for Collectors

June 2025 - New Arrivals!

Discover our newest additions for June 2025—freshly listed mineral specimens with standout form, color, and character. Explore what's new before they're gone.

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Collector’s Showcase

A curated selection of our most exceptional mineral specimens— for serious collectors and display-worthy collections.

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Mineral Displays: A Setup Guide

Learn how to build a professional-looking mineral display using simple techniques—maximize visual impact, preserve your specimens, and tell a story with your collection. For collectors at any level!

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Under $100

Shop our selection of excellent mineral specimens, all priced under $100!

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Natural Mineral Pairings

Explore the beauty of natural mineral associations—where contrasting forms, colors, and crystal habits grow together in a single piece.

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Explore Specimens

Cerussite & Malachite

Tsumeb Mine (Ongopolo Mine), Tsumeb, Oshikoto Region, Namibia

Barite

Linwood Mine, Buffalo, Scott County, Iowa, USA

Calcite & Hematite

Daye Co., Huangshi, Hubei, China

Quartz Var. Herkimer Diamond

Herkimer Diamond Mine (Herkimer Diamond Development), Middleville, Town of Newport, Herkimer County, New York, USA

Celestine & Calcite

Sylvania Minerals (Great Lakes Aggregates Quarry; Sylvania Aggregates Quarry), Berlin Charter Township, Monroe County, Michigan, USA

Calcite

Sylvania Minerals (Great Lakes Aggregates Quarry; Sylvania Aggregates Quarry), Berlin Charter Township, Monroe County, Michigan, USA

Actinolite

Hastings County, Ontario, Canada

Quartz Var. Herkimer Diamond

Herkimer Diamond Mine (Herkimer Diamond Development), Middleville, Town of Newport, Herkimer County, New York, USA

Barite & Fluorite

Aouli, Mibladen, Aït Oufella Caïdat, Midelt Cercle, Midelt Province, Drâa-Tafilalet Region, Morocco, 65 x 45 x 43 mm

Calcite

Daye Co., Huangshi, Hubei, China

Barite

Linwood Mine, Buffalo, Scott County, Iowa, USA

Fluorite & Pyrite

Pugh Quarry, Weston, Wood County, Ohio, USA

Grossular Garnets with Diopside

York River skarn, York River area, Dungannon Township, Town of Bancroft, Hastings County, Ontario, Canada

Spessartine & Smoky Quartz

Wushan Spessartine Mine, Tongbei, Yunxiao Co., Zhangzhou, Fujian, China

Quartz Var. Herkimer Diamond

Herkimer Diamond Mine (Herkimer Diamond Development), Middleville, Town of Newport, Herkimer County, New York, USA

Celestine & Calcite

Wood County, Ohio, USA

Our World-Class Herkimer Diamond Collection

Quartz Var. Herkimer Diamond

Named after their classic locality in Herkimer County, New York, Herkimer Diamonds...

About Us

At Adamantine Minerals, we offer natural mineral specimens for collectors at all stages—from curious beginners to experienced enthusiasts. With a background in geology and a passion for the science behind each piece, we aim to make collecting both approachable and rewarding.

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