Guangdong Province: Copper Blooms and Golden Mimetite

Shilu: The Classic 1980s Copper Minerals

The Shilu copper mine in Yangchun County was among the very first Chinese localities to reach Western collectors. Its velvety malachite — botryoidal, banded, sometimes in bold sculptural masses over 30 cm — and rich blue azurite came out primarily in the mid-1980s, the founding years of the Chinese specimen trade. A Shilu azurite was exhibited by the Beijing Geological Museum at the historic 1980 Tucson show, the event that introduced Chinese minerals to the world.

Because the great production window closed decades ago, Shilu pieces carry the "early Chinese classic" premium: they are documents of collecting history as much as mineral specimens.

Pingtouling: China's Mimetite Moment

In 2001, the Pingtouling mine in Liannan County, Qingyuan Prefecture, delivered a surprise: brilliant golden-yellow to orange mimetite in botryoidal crusts and crystal groups on dark limonite matrix — immediately recognized as China's finest for the species and comparable to the best worldwide. The lead-arsenate mimetite formed, like Guangxi's pyromorphite, in the oxidized zone of a lead deposit under Guangdong's hot, humid climate. Production was concentrated in the early-to-mid 2000s, making the material a defined, collectible chapter.

Photo: Yumeto, CC BY-SA 4.0, via Wikimedia Commons

Jinlong Hill: Red Quartz

From Jinlong Hill in Longchuan County comes one of China's most distinctive quartzes: crystal clusters colored brick-red by microscopic hematite inclusions, often with separate hematite crystals on matrix. Discovered in the mid-1990s, these "red quartz" specimens offer collectors an unusual variation on the world's most common collectible mineral — color from within, not coating on the surface (though surface-coated examples exist too; the included material is the prize).

Also of Note

The Yangshan and Ruyuan districts have produced specimens for the market, and the province's Iceland spar (optical calcite) deposits rank among China's most significant. Guangdong's proximity to Hong Kong made it a natural early corridor for the specimen trade — many "first wave" Chinese minerals passed through here on their way west.

Collector's Notes

For Shilu material, provenance is the game: 1980s pieces with old labels or documented collection history command real premiums. Mimetite is soft and bruise-prone; check the crust surfaces under magnification. With red quartz, distinguish genuine hematite-included crystals from surface-stained or artificially dyed imitations — natural inclusion color is distributed within crystal growth zones, not concentrated in crevices.

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Photo: Robert M. Lavinsky, CC BY-SA 3.0, via Wikimedia Commons

Recent Developments (as of 2026)

Guangdong's localities trade largely on stockpiles now. The Shilu mine itself was worked out and abandoned in 1998, but since around 2019 it has been re-marketed as a premier source of sculptural, chatoyant "velvet" malachite alongside its classic azurite roses — an interesting repositioning, though the material comes from old stock rather than new mining. Pingtouling is regarded as exhausted, its famous golden mimetite dating to 2002–2004 pockets and current sales simply recirculating classic pieces. The Jinlong Hill red quartz remains the exception, still worked by local farmers from iron-rich veins and steadily, if quietly, available.

Sources and further reading

Factual background for this article draws on Liu, G., Lavinsky, R.M., Meieran, E.S., Schmitt, H.H., Moore, T.P. & Wilson, W.E. (2013), Crystalline Treasures: The Mineral Heritage of China, a supplement to The Mineralogical Record vol. 44 no. 1, together with MyMineralBox locality notes and standard mineralogical references. Recent-developments facts are drawn from the dated sources linked in the panel above. All text is original to MyMineralBox.

Hero image: photo by Robert M. Lavinsky, CC BY-SA 3.0 via Wikimedia Commons.

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関連する標本

• Yangchun, Guangdong locality page
• China's mineral renaissance
• Anhui azurite guide